-
openssh (1:9.4p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/releasenotes.html#9.4p1):
- ssh-agent(1): PKCS#11 modules must now be specified by their full
paths. Previously dlopen(3) could search for them in system library
directories.
- ssh(1): allow forwarding Unix Domain sockets via ssh -W.
- ssh(1): add support for configuration tags to ssh(1). This adds a
ssh_config(5) "Tag" directive and corresponding "Match tag" predicate
that may be used to select blocks of configuration similar to the
pf.conf(5) keywords of the same name.
- ssh(1): add a "match localnetwork" predicate. This allows matching on
the addresses of available network interfaces and may be used to vary
the effective client configuration based on network location.
- ssh(1), sshd(8), ssh-keygen(1): infrastructure support for KRL
extensions. This defines wire formats for optional KRL extensions and
implements parsing of the new submessages. No actual extensions are
supported at this point.
- sshd(8): AuthorizedPrincipalsCommand and AuthorizedKeysCommand now
accept two additional %-expansion sequences: %D which expands to the
routing domain of the connected session and %C which expands to the
addresses and port numbers for the source and destination of the
connection.
- ssh-keygen(1): increase the default work factor (rounds) for the
bcrypt KDF used to derive symmetric encryption keys for passphrase
protected key files by 50%.
- ssh-agent(1): improve isolation between loaded PKCS#11 modules by
running separate ssh-pkcs11-helpers for each loaded provider.
- ssh(1): make -f (fork after authentication) work correctly with
multiplexed connections, including ControlPersist (closes: #348741).
- ssh(1): make ConnectTimeout apply to multiplexing sockets and not just
to network connections.
- ssh-agent(1), ssh(1): improve defences against invalid PKCS#11 modules
being loaded by checking that the requested module contains the
required symbol before loading it.
- sshd(8): fix AuthorizedPrincipalsCommand when AuthorizedKeysCommand
appears before it in sshd_config. Since OpenSSH 8.7 the
AuthorizedPrincipalsCommand directive was incorrectly ignored in this
situation.
- sshd(8), ssh(1), ssh-keygen(1): remove vestigial support for KRL
signatures. When the KRL format was originally defined, it included
support for signing of KRL objects. However, the code to sign KRLs and
verify KRL signatues was never completed in OpenSSH. This release
removes the partially-implemented code to verify KRLs. All OpenSSH
tools now ignore KRL_SECTION_SIGNATURE sections in KRL files.
- All: fix a number of memory leaks and unreachable/harmless integer
overflows.
- ssh-agent(1), ssh(1): don't truncate strings logged from PKCS#11
modules.
- sshd(8), ssh(1): better validate CASignatureAlgorithms in ssh_config
and sshd_config. Previously this directive would accept certificate
algorithm names, but these were unusable in practice as OpenSSH does
not support CA chains.
- ssh(1): make `ssh -Q CASignatureAlgorithms` only list signature
algorithms that are valid for CA signing. Previous behaviour was to
list all signing algorithms, including certificate algorithms.
- ssh-keyscan(1): gracefully handle systems where rlimits or the maximum
number of open files is larger than INT_MAX.
- ssh-keygen(1): fix "no comment" not showing on when running
`ssh-keygen -l` on multiple keys where one has a comment and other
following keys do not. bz3580
- scp(1), sftp(1): adjust ftruncate() logic to handle servers that
reorder requests. Previously, if the server reordered requests then
the resultant file would be erroneously truncated.
- ssh(1): don't incorrectly disable hostname canonicalization when
CanonicalizeHostname=yes and ProxyJump was explicitly set to "none".
- scp(1): when copying local->remote, check that the source file exists
before opening an SFTP connection to the server (closes: #59255).
- sshd(8): provide a replacement for the SELinux matchpathcon()
function, which is deprecated.
- All: relax libcrypto version checks for OpenSSL >=3 (closes:
#1035623). Beyond OpenSSL 3.0, the ABI compatibility guarantees are
wider (only the library major must match instead of major and minor in
earlier versions).
- ssh-copy-id(1): Special case OpenWrt instead of Dropbear
(LP: #1966886).
-- Colin Watson <email address hidden> Sat, 02 Sep 2023 21:02:53 +0100
-
openssh (1:9.3p2-1) unstable; urgency=high
* New upstream release (https://www.openssh.com/releasenotes.html#9.3p2):
- [CVE-2023-38408] Fix a condition where specific libraries loaded via
ssh-agent(1)'s PKCS#11 support could be abused to achieve remote code
execution via a forwarded agent socket.
-- Colin Watson <email address hidden> Wed, 19 Jul 2023 22:49:14 +0100
-
openssh (1:9.3p1-1) unstable; urgency=medium
* Debconf translations:
- Romanian (thanks, Remus-Gabriel Chelu; closes: #1033178).
* Properly fix date of 1:3.0.2p1-2 changelog entry (closes: #1034425).
* New upstream release (https://www.openssh.com/releasenotes.html#9.3p1):
- [CVE-2023-28531] ssh-add(1): when adding smartcard keys to
ssh-agent(1) with the per-hop destination constraints (ssh-add -h ...)
added in OpenSSH 8.9, a logic error prevented the constraints from
being communicated to the agent. This resulted in the keys being added
without constraints. The common cases of non-smartcard keys and keys
without destination constraints are unaffected. This problem was
reported by Luci Stanescu (closes: #1033166).
- [SECURITY] ssh(1): Portable OpenSSH provides an implementation of the
getrrsetbyname(3) function if the standard library does not provide
it, for use by the VerifyHostKeyDNS feature. A specifically crafted
DNS response could cause this function to perform an out-of-bounds
read of adjacent stack data, but this condition does not appear to be
exploitable beyond denial-of-service to the ssh(1) client.
- ssh-keygen(1), ssh-keyscan(1): accept -Ohashalg=sha1|sha256 when
outputting SSHFP fingerprints to allow algorithm selection.
- sshd(8): add a `sshd -G` option that parses and prints the effective
configuration without attempting to load private keys and perform
other checks. This allows usage of the option before keys have been
generated and for configuration evaluation and verification by
unprivileged users.
- scp(1), sftp(1): fix progressmeter corruption on wide displays.
- ssh-add(1), ssh-keygen(1): use RSA/SHA256 when testing usability of
private keys as some systems are starting to disable RSA/SHA1 in
libcrypto.
- sftp-server(8): fix a memory leak.
- ssh(1), sshd(8), ssh-keyscan(1): remove vestigial protocol
compatibility code and simplify what's left.
- Fix a number of low-impact Coverity static analysis findings.
- ssh_config(5), sshd_config(5): mention that some options are not
first-match-wins.
- Rework logging for the regression tests. Regression tests will now
capture separate logs for each ssh and sshd invocation in a test.
- ssh(1): make `ssh -Q CASignatureAlgorithms` work as the manpage says
it should.
- ssh(1): ensure that there is a terminating newline when adding a new
entry to known_hosts.
- sshd(8): harden Linux seccomp sandbox. Move to an allowlist of
mmap(2), madvise(2) and futex(2) flags, removing some concerning
kernel attack surface.
* debian/README.Debian: Clarify that you need to restart ssh.socket after
overriding its ListenStream= option (LP: #2020560).
* debian/openssh-server.postinst: Use "sshd -G" to parse the server
configuration file (closes: #959726).
* Fix incorrect RRSET_FORCE_EDNS0 flags validation in SSHFP DNSSEC patch
(thanks, Ben Hutchings; closes: #909022).
* Always use the internal mkdtemp implementation, since it substitutes
more randomness into the template string than glibc's version (closes:
#1001186).
-- Colin Watson <email address hidden> Tue, 20 Jun 2023 01:01:48 +0100
-
openssh (1:9.2p1-2+deb12u1) bookworm; urgency=medium
* Cherry-pick from OpenSSH 9.3p2:
- [CVE-2023-38408] Fix a condition where specific libraries loaded via
ssh-agent(1)'s PKCS#11 support could be abused to achieve remote code
execution via a forwarded agent socket (closes: #1042460).
-- Colin Watson <email address hidden> Sat, 23 Sep 2023 23:11:33 +0100
-
openssh (1:9.2p1-2) unstable; urgency=medium
* Fix mistakenly-unreleased entry for 1:9.2p1-1 in debian/NEWS.
-- Colin Watson <email address hidden> Wed, 08 Feb 2023 10:43:07 +0000
-
openssh (1:9.1p1-2) unstable; urgency=medium
[ Christian Göttsche ]
* Do not copy SELinux security context in postinst.
[ Colin Watson ]
* Add missing ${misc:Depends} to Depends for openssh-client-udeb,
openssh-server-udeb.
* Use secure URI in Homepage field.
* Remove 2 obsolete maintscript entries in 2 files.
* Fix day-of-week for changelog entries 1:3.0.2p1-9, 1:3.0.2p1-2,
1:3.0.1p1-1.
* Remove deprecated Encoding key from desktop file
debian/ssh-askpass-gnome.desktop.
* Update standards version to 4.6.2, no changes needed.
* debian/tests/regress: Adjust to cope with changes in adduser 3.130 (see
#625758).
-- Colin Watson <email address hidden> Tue, 03 Jan 2023 11:57:19 +0000
-
openssh (1:9.1p1-1) unstable; urgency=medium
[ Markus Teich ]
* Delete obsolete upstart configuration override.
[ Colin Watson ]
* Work around apparent dh-exec regressions (closes: #1016340).
* Don't install unnecessary *.lo files in openssh-tests.
* Update Lintian overrides to current syntax.
* Pass on compiler/linker flags when building debian/keygen-test.
* Remove obsolete and misleading rcp/rlogin/rsh alternatives, and stop
providing rsh-client (closes: #197037).
* Add sshd_config checksums for 1:8.2p1-1 and 1:8.7p1-1 to ucf reference
file.
* New upstream release (https://www.openssh.com/releasenotes.html#9.1p1,
closes: #1021585):
- ssh-keyscan(1): fix a one-byte overflow in SSH- banner processing.
- ssh-keygen(1): double free() in error path of file hashing step in
signing/verify code.
- ssh-keysign(8): double-free in error path introduced in openssh-8.9.
- ssh(1), sshd(8): SetEnv directives in ssh_config and sshd_config are
now first-match-wins to match other directives. Previously if an
environment variable was multiply specified the last set value would
have been used.
- ssh-keygen(8): ssh-keygen -A (generate all default host key types)
will no longer generate DSA keys, as these are insecure and have not
been used by default for some years.
- ssh(1), sshd(8): add a RequiredRSASize directive to set a minimum RSA
key length. Keys below this length will be ignored for user
authentication and for host authentication in sshd(8). ssh(1) will
terminate a connection if the server offers an RSA key that falls
below this limit, as the SSH protocol does not include the ability to
retry a failed key exchange.
- sftp-server(8): add a "<email address hidden>" extension
request that allows the client to obtain user/group names that
correspond to a set of uids/gids.
- sftp(1): use "<email address hidden>" sftp-server extension
(when available) to fill in user/group names for directory listings.
- sftp-server(8): support the "home-directory" extension request defined
in draft-ietf-secsh-filexfer-extensions-00. This overlaps a bit with
the existing "<email address hidden>", but some other clients support
it.
- ssh-keygen(1), sshd(8): allow certificate validity intervals, sshsig
verification times and authorized_keys expiry-time options to accept
dates in the UTC time zone in addition to the default of interpreting
them in the system time zone. YYYYMMDD and YYMMDDHHMM[SS] dates/times
will be interpreted as UTC if suffixed with a 'Z' character. Also
allow certificate validity intervals to be specified in raw
seconds-since-epoch as hex value, e.g. -V 0x1234:0x4567890. This is
intended for use by regress tests and other tools that call ssh-keygen
as part of a CA workflow.
- sftp(1): allow arguments to the sftp -D option, e.g. sftp -D
"/usr/libexec/sftp-server -el debug3".
- ssh-keygen(1): allow the existing -U (use agent) flag to work with "-Y
sign" operations, where it will be interpreted to require that the
private keys is hosted in an agent.
- ssh-keygen(1): implement the "verify-required" certificate option.
This was already documented when support for user-verified FIDO keys
was added, but the ssh-keygen(1) code was missing.
- ssh-agent(1): hook up the restrict_websafe command-line flag;
previously the flag was accepted but never actually used.
- sftp(1): improve filename tab completions: never try to complete names
to non-existent commands, and better match the completion type (local
or remote filename) against the argument position being completed.
- ssh-keygen(1), ssh(1), ssh-agent(1): several fixes to FIDO key
handling, especially relating to keys that request user-verification.
These should reduce the number of unnecessary PIN prompts for keys
that support intrinsic user verification.
- ssh-keygen(1): when enrolling a FIDO resident key, check if a
credential with matching application and user ID strings already
exists and, if so, prompt the user for confirmation before overwriting
the credential.
- sshd(8): improve logging of errors when opening authorized_keys files.
- ssh(1): avoid multiplexing operations that could cause SIGPIPE from
causing the client to exit early.
- ssh_config(5), sshd_config(5): clarify that the RekeyLimit directive
applies to both transmitted and received data.
- ssh-keygen(1): avoid double fclose() in error path.
- sshd(8): log an error if pipe() fails while accepting a connection.
- ssh-keyscan(1): add missing *-sk types to ssh-keyscan manpage.
- sshd(8): ensure that authentication passwords are cleared from memory
in error paths.
- ssh(1), ssh-agent(1): avoid possibility of notifier code executing
kill(-1).
- ssh_config(5): note that the ProxyJump directive also accepts the same
tokens as ProxyCommand.
- scp(1): do not ftruncate(3) files early when in sftp mode. The
previous behaviour of unconditionally truncating the destination file
would cause "scp ~/foo localhost:foo" and the reverse "scp
localhost:foo ~/foo" to delete all the contents of their destination.
- ssh-keygen(1): improve error message when 'ssh-keygen -Y sign' is
unable to load a private key.
- sftp(1), scp(1): when performing operations that glob(3) a remote
path, ensure that the implicit working directory used to construct
that path escapes glob(3) characters. This prevents glob characters
from being processed in places they shouldn't, e.g. "cd /tmp/a*/",
"get *.txt" should have the get operation treat the path "/tmp/a*"
literally and not attempt to expand it (LP: #1483751).
- ssh(1), sshd(8): be stricter in which characters will be accepted in
specifying a mask length; allow only 0-9.
- ssh-keygen(1): avoid printing hash algorithm twice when dumping a KRL.
- ssh(1), sshd(8): continue running local I/O for open channels during
SSH transport rekeying. This should make ~-escapes work in the client
(e.g. to exit) if the connection happened to have stalled during a
rekey event.
- ssh(1), sshd(8): avoid potential poll() spin during rekeying.
- Further hardening for sshbuf internals: disallow "reparenting" a
hierarchical sshbuf and zero the entire buffer if reallocation fails.
- sshd(8): add AUDIT_ARCH_PPC to supported seccomp sandbox
architectures.
* Drop patch to work around https://twistedmatrix.com/trac/ticket/9765,
since the fix for that is in Debian testing.
* Rewrite gnome-ssh-askpass(1) manual page using mdoc macros, and flesh it
out a bit more.
[ Steve Langasek ]
* Support systemd socket activation. Migrate any existing inetd-style
socket activation to systemd socket activation.
[ Gioele Barabucci ]
* Remove ancient version constraints.
* d/openssh-server.{postinst,config}: get_config_option: Replace perl with
sed.
-- Colin Watson <email address hidden> Mon, 14 Nov 2022 16:25:45 +0000
-
openssh (1:9.0p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/releasenotes.html#9.0p1):
- scp(1): Use the SFTP protocol by default (closes: #144579, #204546,
#327019). This changes scp's quoting semantics by no longer performing
wildcard expansion using the remote shell, and (with some server
versions) no longer expanding ~user paths. The -O option is available
to use the old protocol. See NEWS.Debian for more details.
- ssh(1), sshd(8): use the hybrid Streamlined NTRU Prime + x25519 key
exchange method by default ("<email address hidden>").
The NTRU algorithm is believed to resist attacks enabled by future
quantum computers and is paired with the X25519 ECDH key exchange (the
previous default) as a backstop against any weaknesses in NTRU Prime
that may be discovered in the future. The combination ensures that the
hybrid exchange offers at least as good security as the status quo.
- sftp-server(8): support the "copy-data" extension to allow server-
side copying of files/data, following the design in
draft-ietf-secsh-filexfer-extensions-00.
- sftp(1): add a "cp" command to allow the sftp client to perform
server-side file copies.
- ssh(1), sshd(8): upstream: fix poll(2) spin when a channel's output fd
closes without data in the channel buffer (closes: #1007822).
- sshd(8): pack pollfd array in server listen/accept loop. Could cause
the server to hang/spin when MaxStartups > RLIMIT_NOFILE.
- ssh-keygen(1): avoid NULL deref via the find-principals and
check-novalidate operations. bz3409 and GHPR307 respectively.
- scp(1): fix a memory leak in argument processing.
- sshd(8): don't try to resolve ListenAddress directives in the sshd
re-exec path. They are unused after re-exec and parsing errors
(possible for example if the host's network configuration changed)
could prevent connections from being accepted.
- sshd(8): when refusing a public key authentication request from a
client for using an unapproved or unsupported signature algorithm
include the algorithm name in the log message to make debugging
easier.
- ssh(1), sshd(8): Fix possible integer underflow in scan_scaled(3)
parsing of K/M/G/etc quantities.
- sshd(8): default to not using sandbox when cross compiling. On most
systems poll(2) does not work when the number of FDs is reduced with
setrlimit, so assume it doesn't when cross compiling and we can't run
the test.
* Remove obsolete FAQ, removed from openssh.com in 2016.
-- Colin Watson <email address hidden> Sat, 09 Apr 2022 14:14:10 +0100
-
openssh (1:8.9p1-3) unstable; urgency=medium
* Allow ppoll_time64 in seccomp filter (closes: #1006445).
-- Colin Watson <email address hidden> Fri, 25 Feb 2022 23:30:49 +0000
-
openssh (1:8.9p1-2) unstable; urgency=medium
* Improve detection of -fzero-call-used-regs=all support.
-- Colin Watson <email address hidden> Thu, 24 Feb 2022 16:09:56 +0000
-
openssh (1:8.9p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/releasenotes.html#8.9p1):
- sshd(8): fix an integer overflow in the user authentication path that,
in conjunction with other logic errors, could have yielded
unauthenticated access under difficult to exploit conditions.
- sshd(8), portable OpenSSH only: this release removes in-built support
for MD5-hashed passwords.
- ssh(1), sshd(8), ssh-add(1), ssh-agent(1): add a system for
restricting forwarding and use of keys added to ssh-agent(1).
- ssh(1), sshd(8): add the <email address hidden> hybrid
ECDH/x25519 + Streamlined NTRU Prime post-quantum KEX to the default
KEXAlgorithms list (after the ECDH methods but before the prime-group
DH ones). The next release of OpenSSH is likely to make this key
exchange the default method.
- ssh-keygen(1): when downloading resident keys from a FIDO token, pass
back the user ID that was used when the key was created and append it
to the filename the key is written to (if it is not the default).
Avoids keys being clobbered if the user created multiple resident keys
with the same application string but different user IDs.
- ssh-keygen(1), ssh(1), ssh-agent(1): better handling for FIDO keys on
tokens that provide user verification (UV) on the device itself,
including biometric keys, avoiding unnecessary PIN prompts.
- ssh-keygen(1): add "ssh-keygen -Y match-principals" operation to
perform matching of principals names against an allowed signers file.
To be used towards a TOFU model for SSH signatures in git.
- ssh-add(1), ssh-agent(1): allow pin-required FIDO keys to be added to
ssh-agent(1). $SSH_ASKPASS will be used to request the PIN at
authentication time.
- ssh-keygen(1): allow selection of hash at sshsig signing time (either
sha512 (default) or sha256).
- ssh(1), sshd(8): read network data directly to the packet input buffer
instead indirectly via a small stack buffer. Provides a modest
performance improvement.
- ssh(1), sshd(8): read data directly to the channel input buffer,
providing a similar modest performance improvement.
- ssh(1): extend the PubkeyAuthentication configuration directive to
accept yes|no|unbound|host-bound to allow control over one of the
protocol extensions used to implement agent-restricted keys.
- sshd(8): document that CASignatureAlgorithms, ExposeAuthInfo and
PubkeyAuthOptions can be used in a Match block.
- sshd(8): fix possible string truncation when constructing paths to
.rhosts/.shosts files with very long user home directory names.
- ssh-keysign(1): unbreak for KEX algorithms that use SHA384/512
exchange hashes.
- ssh(1): don't put the TTY into raw mode when SessionType=none, avoids
^C being unable to kill such a session.
- scp(1): fix some corner-case bugs in SFTP-mode handling of ~-prefixed
paths.
- ssh(1): unbreak hostbased auth using RSA keys. Allow ssh(1) to select
RSA keys when only RSA/SHA2 signature algorithms are configured (this
is the default case). Previously RSA keys were not being considered in
the default case.
- ssh-keysign(1): make ssh-keysign use the requested signature algorithm
and not the default for the key type. Part of unbreaking hostbased
auth for RSA/SHA2 keys.
- ssh(1): stricter UpdateHostkey signature verification logic on the
client-side. Require RSA/SHA2 signatures for RSA hostkeys except when
RSA/SHA1 was explicitly negotiated during initial KEX.
- ssh(1), sshd(8): fix signature algorithm selection logic for
UpdateHostkeys on the server side. The previous code tried to prefer
RSA/SHA2 for hostkey proofs of RSA keys, but missed some cases. This
will use RSA/SHA2 signatures for RSA keys if the client proposed these
algorithms in initial KEX.
- All: convert all uses of select(2)/pselect(2) to poll(2)/ppoll(2).
This includes the mainloops in ssh(1), ssh-agent(1), ssh-agent(1) and
sftp-server(8), as well as the sshd(8) listen loop and all other FD
read/writability checks. On platforms with missing or broken
poll(2)/ppoll(2) syscalls a select(2)-based compat shim is available.
- ssh-keygen(1): the "-Y find-principals" command was verifying key
validity when using ca certs but not with simple key lifetimes within
the allowed signers file.
- ssh-keygen(1): make sshsig verify-time argument parsing optional.
- sshd(8): fix truncation in rhosts/shosts path construction.
- ssh(1), ssh-agent(1): avoid xmalloc(0) for PKCS#11 keyid for ECDSA
keys (we already did this for RSA keys). Avoids fatal errors for
PKCS#11 libraries that return empty keyid, e.g. Microchip ATECC608B
"cryptoauthlib".
- ssh(1), ssh-agent(1): improve the testing of credentials against
inserted FIDO: ask the token whether a particular key belongs to it in
cases where the token supports on-token user-verification (e.g.
biometrics) rather than just assuming that it will accept it. Will
reduce spurious "Confirm user presence" notifications for key handles
that relate to FIDO keys that are not currently inserted in at least
some cases.
- ssh(1), sshd(8): correct value for IPTOS_DSCP_LE. It needs to allow
for the preceding two ECN bits.
- ssh-keygen(1): add missing -O option to usage() for the "-Y sign"
option.
- ssh-keygen(1): fix a NULL deref when using the find-principals
function, when matching an allowed_signers line that contains a
namespace restriction, but no restriction specified on the
command-line
- ssh-agent(1): fix memleak in process_extension().
- ssh(1): suppress "Connection to xxx closed" messages when LogLevel is
set to "error" or above.
- ssh(1), sshd(8): use correct zlib flags when inflate(3)-ing compressed
packet data.
- scp(1): when recursively transferring files in SFTP mode, create the
destination directory if it doesn't already exist to match scp(1) in
legacy RCP mode behaviour.
- scp(1): many improvements in error message consistency between scp(1)
in SFTP mode vs legacy RCP mode.
- sshd(8): fix potential race in SIGTERM handling.
- ssh(1), ssh(8): since DSA keys are deprecated, move them to the end of
the default list of public keys so that they will be tried last.
- ssh-keygen(1): allow 'ssh-keygen -Y find-principals' to match wildcard
principals in allowed_signers files.
- ssh(1), sshd(8): don't trust closefrom(2) on Linux. glibc's
implementation does not work in a chroot when the kernel does not have
close_range(2). It tries to read from /proc/self/fd and when that
fails dies with an assertion of sorts. Instead, call close_range(2)
directly from our compat code and fall back if that fails.
- Correct handling of exceptfds/POLLPRI in our select(2)-based
poll(2)/ppoll(2) compat implementation.
* Drop patch to work around https://twistedmatrix.com/trac/ticket/9515,
since the fix for that is in Debian stable.
-- Colin Watson <email address hidden> Thu, 24 Feb 2022 11:06:15 +0000
-
openssh (1:8.8p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/releasenotes.html#8.8p1,
closes: #996391):
- This release disables RSA signatures using the SHA-1 hash algorithm by
default. (Existing RSA keys may still be used and do not need to be
replaced; see NEWS.Debian if you have problems connecting to old SSH
servers.)
- ssh(1): allow the ssh_config(5) CanonicalizePermittedCNAMEs directive
to accept a "none" argument to specify the default behaviour.
- scp(1): when using the SFTP protocol, continue transferring files
after a transfer error occurs, better matching original scp/rcp
behaviour.
- ssh(1): fixed a number of memory leaks in multiplexing,
- ssh-keygen(1): avoid crash when using the -Y find-principals command.
- A number of documentation and manual improvements.
- ssh(1)/sshd(8): some fixes to the pselect(2) replacement compatibility
code.
* Work around missing RSA SHA-2 signature support in conch until the
upstream fix lands in Debian.
-- Colin Watson <email address hidden> Tue, 15 Feb 2022 19:20:21 +0000
-
openssh (1:8.7p1-4) unstable; urgency=medium
[ Daniel Baumann ]
* Fix typo in openssh-client.alternatives (closes: #1002803).
[ Colin Watson ]
* Further clarify socket activation instructions.
-- Colin Watson <email address hidden> Wed, 29 Dec 2021 12:08:38 +0000
-
openssh (1:8.7p1-3) unstable; urgency=medium
* Include unit test binaries in openssh-tests even if building with
DEB_BUILD_OPTIONS=nocheck.
* Install built version of sshd_config, with corrected PATH and PidFile.
* Upgrade to debhelper v13.
* debian/copyright: Use HTTPS in Source field.
* Update renamed Lintian tag name in Lintian override.
* debian/watch: Upgrade to version 4.
* Clarify instructions for using socket activation to avoid accidental
attempts to start the non-socket-activated service that can result in
systems without a running sshd (closes: #1001320).
* Remove maintainer script code for upgrades from before Debian 9.
* Make the sysvinit script provide "ssh" as well as "sshd".
* Set Rules-Requires-Root: no.
* Use dh_installalternatives.
* Simplify some debhelper overrides slightly.
-- Colin Watson <email address hidden> Wed, 29 Dec 2021 01:12:00 +0000
-
openssh (1:8.7p1-2) unstable; urgency=medium
* Backport from upstream:
- Avoid NULL deref in -Y find-principals (closes: #999593).
-- Colin Watson <email address hidden> Sat, 13 Nov 2021 13:40:50 +0000
-
openssh (1:8.7p1-1) unstable; urgency=medium
* debian/upstream/signing-key.asc: Update from upstream.
* New upstream release (https://www.openssh.com/releasenotes.html#8.7p1):
- scp(1): this release changes the behaviour of remote to remote copies
(e.g. "scp host-a:/path host-b:") to transfer through the local host
by default (closes: #734386, LP: #1462758). This was previously
available via the -3 flag. A -R flag has been added to select the old
behaviour.
- ssh(1)/sshd(8): both the client and server are now using a stricter
configuration file parser.
- ssh(1): when using SSHFP DNS records for host key verification, ssh(1)
will verify all matching records instead of just those with the
specific signature type requested.
- ssh-keygen(1): when generating a FIDO key and specifying an explicit
attestation challenge (using -Ochallenge), the challenge will now be
hashed by the builtin security key middleware.
- sshd(8): environment="..." directives in authorized_keys files are now
first-match-wins and limited to 1024 discrete environment variable
names.
- scp(1): experimental support for transfers using the SFTP protocol as
a replacement for the venerable SCP/RCP protocol that it has
traditionally used. SFTP offers more predictable filename handling and
does not require expansion of glob(3) patterns via the shell on the
remote side.
SFTP support may be enabled via a temporary scp -s flag. It is
intended for SFTP to become the default transfer mode in the near
future, at which time the -s flag will be removed. The -O flag exists
to force use of the original SCP/RCP protocol for cases where SFTP may
be unavailable or incompatible.
- sftp-server(8): add a protocol extension to support expansion of ~/
and ~user/ prefixed paths. This was added to support these paths when
used by scp(1) while in SFTP mode.
- ssh(1): add a ForkAfterAuthentication ssh_config(5) counterpart to the
ssh(1) -f flag. GHPR231
- ssh(1): add a StdinNull directive to ssh_config(5) that allows the
config file to do the same thing as -n does on the ssh(1) command-
line. GHPR231
- ssh(1): add a SessionType directive to ssh_config, allowing the
configuration file to offer equivalent control to the -N (no session)
and -s (subsystem) command-line flags (closes: #609122).
- ssh-keygen(1): allowed signers files used by ssh-keygen(1) signatures
now support listing key validity intervals alongside they key, and
ssh-keygen(1) can optionally check during signature verification
whether a specified time falls inside this interval. This feature is
intended for use by git to support signing and verifying objects using
ssh keys.
- ssh-keygen(8): support printing of the full public key in a sshsig
signature via a -Oprint-pubkey flag.
- ssh(1)/sshd(8): start time-based re-keying exactly on schedule in the
client and server mainloops. Previously the re-key timeout could
expire but re-keying would not start until a packet was sent or
received, causing a spin in select() if the connection was quiescent.
- ssh-keygen(1): avoid Y2038 problem in printing certificate validity
lifetimes. Dates past 2^31-1 seconds since epoch were displayed
incorrectly on some platforms.
- scp(1): allow spaces to appear in usernames for local to remote and
scp -3 remote to remote copies.
- ssh(1)/sshd(8): remove references to ChallengeResponseAuthentication
in favour of KbdInteractiveAuthentication. The former is what was in
SSHv1, the latter is what is in SSHv2 (RFC4256) and they were treated
as somewhat but not entirely equivalent. We retain the old name as a
deprecated alias so configuration files continue to work as well as a
reference in the man page for people looking for it.
- ssh(1)/ssh-add(1)/ssh-keygen(1): fix decoding of X.509 subject name
when extracting a key from a PKCS#11 certificate.
- ssh(1): restore blocking status on stdio fds before close. ssh(1)
needs file descriptors in non-blocking mode to operate but it was not
restoring the original state on exit. This could cause problems with
fds shared with other programs via the shell.
- ssh(1)/sshd(8): switch both client and server mainloops from select(3)
to pselect(3). Avoids race conditions where a signal may arrive
immediately before select(3) and not be processed until an event
fires.
- ssh(1): sessions started with ControlPersist were incorrectly
executing a shell when the -N (no shell) option was specified (closes:
#762633).
- ssh(1): check if IPQoS or TunnelDevice are already set before
overriding. Prevents values in config files from overriding values
supplied on the command line.
- ssh(1): fix debug message when finding a private key to match a
certificate being attempted for user authentication. Previously it
would print the certificate's path, whereas it was supposed to be
showing the private key's path.
- sshd(8): match host certificates against host public keys, not private
keys. Allows use of certificates with private keys held in a
ssh-agent.
- ssh(1): add a workaround for a bug in OpenSSH 7.4 sshd(8), which
allows RSA/SHA2 signatures for public key authentication but fails to
advertise this correctly via SSH2_MSG_EXT_INFO. This causes clients of
these server to incorrectly match PubkeyAcceptedAlgorithms and
potentially refuse to offer valid keys.
- sftp(1)/scp(1): degrade gracefully if a sftp-server offers the
<email address hidden> extension but fails when the client tries to invoke
it.
- ssh(1): allow ssh_config SetEnv to override $TERM, which is otherwise
handled specially by the protocol. Useful in ~/.ssh/config to set TERM
to something generic (e.g. "xterm" instead of "xterm-256color") for
destinations that lack terminfo entries.
- sftp-server(8): the <email address hidden> extension was incorrectly
marked as an operation that writes to the filesystem, which made it
unavailable in sftp-server read-only mode.
- ssh(1): fix SEGV in UpdateHostkeys debug() message, triggered when the
update removed more host keys than remain present.
- Many manual page fixes.
- sshd(8): handle GIDs > 2^31 in getgrouplist. When compiled in 32bit
mode, the getgrouplist implementation may fail for GIDs greater than
LONG_MAX.
- ssh(1): xstrdup environment variable used by ForwardAgent.
- sshd(8): don't sigdie() in signal handler in privsep child process;
this can end up causing sandbox violations.
* New upstream release (https://www.openssh.com/releasenotes.html#8.6p1):
- sftp-server(8): add a new <email address hidden> protocol extension that
allows a client to discover various server limits, including maximum
packet size and maximum read/write length.
- sftp(1): use the new <email address hidden> extension (when available) to
select better transfer lengths in the client.
- sshd(8): Add ModuliFile keyword to sshd_config to specify the location
of the "moduli" file containing the groups for DH-GEX.
- ssh_config(5), sshd_config(5): sync CASignatureAlgorithms lists in
manual pages with the current default.
- ssh(1): ensure that pkcs11_del_provider() is called before exit.
- ssh(1), sshd(8): fix problems in string->argv conversion. Multiple
backslashes were not being dequoted correctly and quoted space in the
middle of a string was being incorrectly split.
- ssh(1): return non-zero exit status when killed by signal.
- sftp-server(8): increase maximum SSH2_FXP_READ to match the maximum
packet size. Also handle zero-length reads that are not explicitly
banned by the spec.
- sshd(8): don't mistakenly exit on transient read errors on the network
socket (e.g. EINTR, EAGAIN).
- Create a dedicated contrib/gnome-ssk-askpass3.c source instead of
building it from the same file as used for GNOME2. Use the GNOME3
gdk_seat_grab() to manage keyboard/mouse/server grabs for better
compatibility with Wayland.
- sshd(8): soft-disallow the fstatat64 syscall in the Linux seccomp-bpf
sandbox.
* New upstream release (https://www.openssh.com/releasenotes.html#8.5p1):
- ssh(1), sshd(8): change the first-preference signature algorithm from
ECDSA to ED25519.
- ssh(1), sshd(8): set the TOS/DSCP specified in the configuration for
interactive use prior to TCP connect.
- ssh(1), sshd(8): remove the pre-standardization cipher
<email address hidden>.
- ssh(1), sshd(8): update/replace the experimental post-quantum hybrid
key exchange method based on Streamlined NTRU Prime coupled with
X25519.
- ssh(1): disable CheckHostIP by default. It provides insignificant
benefits while making key rotation significantly more difficult,
especially for hosts behind IP-based load-balancers (closes: #764027).
- ssh(1): enable UpdateHostkeys by default subject to some conservative
preconditions (closes: #875532):
+ The key was matched in the UserKnownHostsFile (and not in the
GlobalKnownHostsFile).
+ The same key does not exist under another name.
+ A certificate host key is not in use.
+ known_hosts contains no matching wildcard hostname pattern.
+ VerifyHostKeyDNS is not enabled.
+ The default UserKnownHostsFile is in use.
We expect some of these conditions will be modified or relaxed in
future.
- ssh(1), sshd(8): add a new LogVerbose configuration directive that
allows forcing maximum debug logging by file/function/line
pattern-lists.
- ssh(1): when prompting the user to accept a new hostkey, display any
other host names/addresses already associated with the key.
- ssh(1): allow UserKnownHostsFile=none to indicate that no known_hosts
file should be used to identify host keys.
- ssh(1): add a ssh_config KnownHostsCommand option that allows the
client to obtain known_hosts data from a command in addition to the
usual files.
- ssh(1): add a ssh_config PermitRemoteOpen option that allows the
client to restrict the destination when RemoteForward is used with
SOCKS.
- ssh(1): for FIDO keys, if a signature operation fails with a
"incorrect PIN" reason and no PIN was initially requested from the
user, then request a PIN and retry the operation. This supports some
biometric devices that fall back to requiring PIN when reading of the
biometric failed, and devices that require PINs for all hosted
credentials.
- sshd(8): implement client address-based rate-limiting via new
sshd_config(5) PerSourceMaxStartups and PerSourceNetBlockSize
directives that provide more fine-grained control on a per-origin
address basis than the global MaxStartups limit.
- ssh(1): Prefix keyboard interactive prompts with "(user@host)" to make
it easier to determine which connection they are associated with in
cases like scp -3, ProxyJump, etc. (closes: #343267).
- sshd(8): fix sshd_config SetEnv directives located inside Match
blocks.
- ssh(1): when requesting a FIDO token touch on stderr, inform the user
once the touch has been recorded.
- ssh(1): prevent integer overflow when ridiculously large
ConnectTimeout values are specified, capping the effective value (for
most platforms) at 24 days.
- ssh(1): consider the ECDSA key subtype when ordering host key
algorithms in the client.
- ssh(1), sshd(8): rename the PubkeyAcceptedKeyTypes keyword to
PubkeyAcceptedAlgorithms. The previous name incorrectly suggested that
it control allowed key algorithms, when this option actually specifies
the signature algorithms that are accepted. The previous name remains
available as an alias (closes: #933665).
- ssh(1), sshd(8): similarly, rename HostbasedKeyTypes (ssh) and
HostbasedAcceptedKeyTypes (sshd) to HostbasedAcceptedAlgorithms.
- sftp-server(8): add missing <email address hidden> documentation and
advertisement in the server's SSH2_FXP_VERSION hello packet.
- ssh(1), sshd(8): more strictly enforce KEX state-machine by banning
packet types once they are received. Fixes memleak caused by duplicate
SSH2_MSG_KEX_DH_GEX_REQUEST.
- sftp(1): allow the full range of UIDs/GIDs for chown/chgrp on 32bit
platforms instead of being limited by LONG_MAX.
- Minor man page fixes (capitalization, commas, etc.)
- sftp(1): when doing an sftp recursive upload or download of a
read-only directory, ensure that the directory is created with write
and execute permissions in the interim so that the transfer can
actually complete, then set the directory permission as the final
step.
- ssh-keygen(1): document the -Z, check the validity of its argument
earlier and provide a better error message if it's not correct.
- ssh(1): ignore comments at the end of config lines in ssh_config,
similar to what we already do for sshd_config.
- sshd_config(5): mention that DisableForwarding is valid in a
sshd_config Match block.
- sftp(1): fix incorrect sorting of "ls -ltr" under some circumstances.
- ssh(1), sshd(8): fix potential integer truncation of (unlikely)
timeout values.
- ssh(1): make hostbased authentication send the signature algorithm in
its SSH2_MSG_USERAUTH_REQUEST packets instead of the key type. This
make HostbasedAcceptedAlgorithms do what it is supposed to - filter on
signature algorithm and not key type.
- sshd(8): add a number of platform-specific syscalls to the Linux
seccomp-bpf sandbox.
- sshd(8): remove debug message from sigchld handler that could cause
deadlock on some platforms.
- Sync contrib/ssh-copy-id with upstream.
* Remove OpenBSD-specific rdomain references from sshd_config(5) (closes:
#998069).
* Define MAXHOSTNAMELEN on GNU/Hurd (thanks, Svante Signell; closes:
#997030).
* Build-depend on libelogind-dev as an alternative to libsystemd-dev on
Linux (thanks, Svante Signell; closes: #997035).
* Backport from upstream:
- CVE-2021-41617 (closes: #995130): sshd(8) from OpenSSH 6.2 through 8.7
failed to correctly initialise supplemental groups when executing an
AuthorizedKeysCommand or AuthorizedPrincipalsCommand, where a
AuthorizedKeysCommandUser or AuthorizedPrincipalsCommandUser directive
has been set to run the command as a different user. Instead these
commands would inherit the groups that sshd(8) was started with.
* Configure with ac_cv_func_closefrom=no to avoid an incompatibility with
glibc 2.34's fallback_closefrom function (thanks, William 'jawn-smith'
Wilson; LP: #1944621).
-- Colin Watson <email address hidden> Sat, 06 Nov 2021 12:23:47 +0000
-
openssh (1:8.4p1-6) unstable; urgency=medium
[ Colin Watson ]
* Rename ssh group to _ssh (closes: #990456). It's only used by
ssh-agent.
* debian/tests/regress: Don't fail cleanup if haveged isn't running.
* Backport from upstream:
- Add includes.h to compat tests (closes: #992134, LP: #1939751).
* Use "command -v" in maintainer scripts rather than "which".
[ Athos Ribeiro ]
* d/systemd/ssh@.service: preserve the systemd managed runtime directory to
ensure parallel processes will not disrupt one another when halting
(LP: #1905285) (closes: #934663)
-- Colin Watson <email address hidden> Thu, 19 Aug 2021 11:04:01 +0100
-
openssh (1:8.4p1-5+deb11u1) bullseye; urgency=medium
* Backport from upstream:
- Add new pselect6_time64 syscall on 32-bit architectures (closes:
#1004427).
-- Colin Watson <email address hidden> Fri, 01 Jul 2022 23:37:41 +0100
-
openssh (1:8.4p1-5) unstable; urgency=high
* CVE-2021-28041: Fix double free in ssh-agent(1) (closes: #984940).
-- Colin Watson <email address hidden> Sat, 13 Mar 2021 09:59:40 +0000
-
openssh (1:8.4p1-4) unstable; urgency=medium
* Avoid using libmd's <sha2.h> even if it's installed (closes: #982705).
-- Colin Watson <email address hidden> Mon, 15 Feb 2021 10:25:17 +0000
-
openssh (1:8.4p1-3) unstable; urgency=medium
* Backport from upstream:
- Fix `EOF: command not found` error in ssh-copy-id (closes: #975540).
-- Colin Watson <email address hidden> Wed, 02 Dec 2020 10:32:23 +0000
-
openssh (1:8.4p1-2) unstable; urgency=medium
* Revert incorrect upstream patch that claimed to fix the seccomp sandbox
on x32 but in fact broke it instead.
-- Colin Watson <email address hidden> Mon, 26 Oct 2020 17:41:13 +0000
-
openssh (1:8.4p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/txt/release-8.4):
- [SECURITY] ssh-agent(1): restrict ssh-agent from signing web
challenges for FIDO/U2F keys.
- [SECURITY] ssh-keygen(1): Enable FIDO 2.1 credProtect extension when
generating a FIDO resident key.
- ssh-keygen(1): the format of the attestation information optionally
recorded when a FIDO key is generated has changed. It now includes the
authenticator data needed to validate attestation signatures.
- The API between OpenSSH and the FIDO token middleware has changed and
the SSH_SK_VERSION_MAJOR version has been incremented as a result.
Third-party middleware libraries must support the current API version
(7) to work with OpenSSH 8.4.
- ssh(1), ssh-keygen(1): support for FIDO keys that require a PIN for
each use. These keys may be generated using ssh-keygen using a new
"verify-required" option. When a PIN-required key is used, the user
will be prompted for a PIN to complete the signature operation.
- sshd(8): authorized_keys now supports a new "verify-required" option
to require FIDO signatures assert that the token verified that the
user was present before making the signature. The FIDO protocol
supports multiple methods for user-verification, but currently OpenSSH
only supports PIN verification.
- sshd(8), ssh-keygen(1): add support for verifying FIDO webauthn
signatures. Webauthn is a standard for using FIDO keys in web
browsers. These signatures are a slightly different format to plain
FIDO signatures and thus require explicit support.
- ssh(1): allow some keywords to expand shell-style ${ENV} environment
variables. The supported keywords are CertificateFile, ControlPath,
IdentityAgent and IdentityFile, plus LocalForward and RemoteForward
when used for Unix domain socket paths.
- ssh(1), ssh-agent(1): allow some additional control over the use of
ssh-askpass via a new $SSH_ASKPASS_REQUIRE environment variable,
including forcibly enabling and disabling its use (closes: #368657).
- ssh(1): allow ssh_config(5)'s AddKeysToAgent keyword accept a time
limit for keys in addition to its current flag options. Time-limited
keys will automatically be removed from ssh-agent after their expiry
time has passed.
- scp(1), sftp(1): allow the -A flag to explicitly enable agent
forwarding in scp and sftp. The default remains to not forward an
agent, even when ssh_config enables it.
- ssh(1): add a '%k' TOKEN that expands to the effective HostKey of the
destination. This allows, e.g., keeping host keys in individual files
using "UserKnownHostsFile ~/.ssh/known_hosts.d/%k" (closes: #481250).
- ssh(1): add %-TOKEN, environment variable and tilde expansion to the
UserKnownHostsFile directive, allowing the path to be completed by the
configuration.
- ssh-keygen(1): allow "ssh-add -d -" to read keys to be deleted from
stdin.
- sshd(8): improve logging for MaxStartups connection throttling. sshd
will now log when it starts and stops throttling and periodically
while in this state.
- ssh(1), ssh-keygen(1): better support for multiple attached FIDO
tokens. In cases where OpenSSH cannot unambiguously determine which
token to direct a request to, the user is now required to select a
token by touching it. In cases of operations that require a PIN to be
verified, this avoids sending the wrong PIN to the wrong token and
incrementing the token's PIN failure counter (tokens effectively erase
their keys after too many PIN failures).
- sshd(8): fix Include before Match in sshd_config (LP: #1885990).
- ssh(1): close stdin/out/error when forking after authentication
completes ("ssh -f ...").
- ssh(1), sshd(8): limit the amount of channel input data buffered,
avoiding peers that advertise large windows but are slow to read from
causing high memory consumption.
- ssh-agent(1): handle multiple requests sent in a single write() to the
agent.
- sshd(8): allow sshd_config longer than 256k.
- sshd(8): avoid spurious "Unable to load host key" message when sshd
load a private key but no public counterpart.
- ssh(1): prefer the default hostkey algorithm list whenever we have a
hostkey that matches its best-preference algorithm.
- sshd(1): when ordering the hostkey algorithms to request from a
server, prefer certificate types if the known_hosts files contain a
key marked as a @cert-authority.
- ssh(1): perform host key fingerprint comparisons for the "Are you sure
you want to continue connecting (yes/no/[fingerprint])?" prompt with
case sensitivity.
- sshd(8): ensure that address/masklen mismatches in sshd_config yield
fatal errors at daemon start time rather than later when they are
evaluated.
- ssh-keygen(1): ensure that certificate extensions are lexically
sorted. Previously if the user specified a custom extension then the
everything would be in order except the custom ones.
- ssh(1): also compare username when checking for JumpHost loops.
- ssh-keygen(1): preserve group/world read permission on known_hosts
files across runs of "ssh-keygen -Rf /path". The old behaviour was to
remove all rights for group/other.
- ssh-keygen(1): Mention the [-a rounds] flag in the ssh-keygen manual
page and usage().
- sshd(8): explicitly construct path to ~/.ssh/rc rather than relying on
it being relative to the current directory, so that it can still be
found if the shell startup changes its directory.
- sshd(8): when redirecting sshd's log output to a file, undo this
redirection after the session child process is forked(). Fixes missing
log messages when using this feature under some circumstances.
- sshd(8): start ClientAliveInterval bookkeeping before first pass
through select() loop; fixed theoretical case where busy sshd may
ignore timeouts from client.
- ssh(1): only reset the ServerAliveInterval check when we receive
traffic from the server and ignore traffic from a port forwarding
client, preventing a client from keeping a connection alive when it
should be terminated.
- ssh-keygen(1): avoid spurious error message when ssh-keygen creates
files outside ~/.ssh.
- sftp-client(1): fix off-by-one error that caused sftp downloads to
make one more concurrent request that desired. This prevented using
sftp(1) in unpipelined request/response mode, which is useful when
debugging.
- ssh(1), sshd(8): handle EINTR in waitfd() and timeout_connect()
helpers.
- ssh(1), ssh-keygen(1): defer creation of ~/.ssh until we attempt to
write to it so we don't leave an empty .ssh directory when it's not
needed.
- ssh(1), sshd(8): fix multiplier when parsing time specifications when
handling seconds after other units.
- sshd(8): always send any PAM account messages. If the PAM account
stack returns any messages, always send them to the user and not just
if the check succeeds.
- gnome-ssh-askpass3: ensure the "close" button is not focused by
default for SSH_ASKPASS_PROMPT=none prompts. Avoids space/enter
accidentally dismissing FIDO touch notifications.
- gnome-ssh-askpass3: allow some control over textarea colour via
$GNOME_SSH_ASKPASS_FG_COLOR and $GNOME_SSH_ASKPASS_BG_COLOR
environment variables.
- Detect the Frankenstein monster of Linux/X32 and allow the sandbox to
function there.
-- Colin Watson <email address hidden> Tue, 20 Oct 2020 14:15:17 +0100
-
openssh (1:8.3p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/txt/release-8.3):
- [SECURITY] scp(1): when receiving files, scp(1) could become
desynchronised if a utimes(2) system call failed. This could allow
file contents to be interpreted as file metadata and thereby permit an
adversary to craft a file system that, when copied with scp(1) in a
configuration that caused utimes(2) to fail (e.g. under a SELinux
policy or syscall sandbox), transferred different file names and
contents to the actual file system layout.
- sftp(1): reject an argument of "-1" in the same way as ssh(1) and
scp(1) do instead of accepting and silently ignoring it.
- sshd(8): make IgnoreRhosts a tri-state option: "yes" to ignore
rhosts/shosts, "no" to allow rhosts/shosts or (new) "shosts-only" to
allow .shosts files but not .rhosts.
- sshd(8): allow the IgnoreRhosts directive to appear anywhere in a
sshd_config, not just before any Match blocks.
- ssh(1): add %TOKEN percent expansion for the LocalForward and
RemoteForward keywords when used for Unix domain socket forwarding.
- all: allow loading public keys from the unencrypted envelope of a
private key file if no corresponding public key file is present.
- ssh(1), sshd(8): prefer to use chacha20 from libcrypto where possible
instead of the (slower) portable C implementation included in OpenSSH.
- ssh-keygen(1): add ability to dump the contents of a binary key
revocation list via "ssh-keygen -lQf /path".
- ssh(1): fix IdentitiesOnly=yes to also apply to keys loaded from a
PKCS11Provider.
- ssh-keygen(1): avoid NULL dereference when trying to convert an
invalid RFC4716 private key.
- scp(1): when performing remote-to-remote copies using "scp -3", start
the second ssh(1) channel with BatchMode=yes enabled to avoid
confusing and non-deterministic ordering of prompts.
- ssh(1), ssh-keygen(1): when signing a challenge using a FIDO token,
perform hashing of the message to be signed in the middleware layer
rather than in OpenSSH code. This permits the use of security key
middlewares that perform the hashing implicitly, such as Windows
Hello.
- ssh(1): fix incorrect error message for "too many known hosts files."
- ssh(1): make failures when establishing "Tunnel" forwarding terminate
the connection when ExitOnForwardFailure is enabled.
- ssh-keygen(1): fix printing of fingerprints on private keys and add a
regression test for same.
- sshd(8): document order of checking AuthorizedKeysFile (first) and
AuthorizedKeysCommand (subsequently, if the file doesn't match).
- sshd(8): document that /etc/hosts.equiv and /etc/shosts.equiv are not
considered for HostbasedAuthentication when the target user is root.
- ssh(1), ssh-keygen(1): fix NULL dereference in private certificate key
parsing.
- ssh(1), sshd(8): more consistency between sets of %TOKENS are accepted
in various configuration options.
- ssh(1), ssh-keygen(1): improve error messages for some common PKCS#11
C_Login failure cases.
- ssh(1), sshd(8): make error messages for problems during SSH banner
exchange consistent with other SSH transport-layer error messages and
ensure they include the relevant IP addresses.
- ssh-keygen(1), ssh-add(1): when downloading FIDO2 resident keys from a
token, don't prompt for a PIN until the token has told us that it
needs one. Avoids double-prompting on devices that implement
on-device authentication (closes: #932071).
- sshd(8), ssh-keygen(1): no-touch-required FIDO certificate option
should be an extension, not a critical option.
- ssh(1), ssh-keygen(1), ssh-add(1): offer a better error message when
trying to use a FIDO key function and SecurityKeyProvider is empty.
- ssh-add(1), ssh-agent(8): ensure that a key lifetime fits within the
values allowed by the wire format (u32). Prevents integer wraparound
of the timeout values.
- ssh(1): detect and prevent trivial configuration loops when using
ProxyJump. bz#3057.
- On platforms that do not support setting process-wide routing domains
(all excepting OpenBSD at present), fail to accept a configuration
attempts to set one at process start time rather than fatally erroring
at run time.
- Fix theoretical infinite loop in the glob(3) replacement
implementation.
* Update GSSAPI key exchange patch from
https://github.com/openssh-gsskex/openssh-gsskex:
- Fix connection through ProxyJump in combination with "GSSAPITrustDNS
yes".
- Enable SHA2-based GSSAPI key exchange methods by default as RFC 8732
was published.
* Fix or suppress various shellcheck errors under debian/.
* Use AUTOPKGTEST_TMP rather than the deprecated ADTTMP.
* Apply upstream patch to fix the handling of Port directives after
Include (closes: #962035, LP: #1876320).
-- Colin Watson <email address hidden> Sun, 07 Jun 2020 13:44:04 +0100
-
openssh (1:8.2p1-4) unstable; urgency=medium
* Add /etc/ssh/ssh_config.d/ to openssh-client.
* Add /etc/ssh/sshd_config.d/ to openssh-server (closes: #952427).
* Install ssh-sk-helper even on non-Linux architectures, though it will
need an external middleware library in those cases.
-- Colin Watson <email address hidden> Wed, 26 Feb 2020 10:55:07 +0000
-
openssh (1:8.2p1-3) unstable; urgency=medium
* Reupload with -sa to work around confusion with 1:8.2p1-1 being in NEW.
-- Colin Watson <email address hidden> Sun, 23 Feb 2020 13:30:01 +0000
-
openssh (1:8.2p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/txt/release-8.2, closes:
#951582):
- ssh(1), sshd(8), ssh-keygen(1): this release removes the "ssh-rsa"
(RSA/SHA1) algorithm from those accepted for certificate signatures
(i.e. the client and server CASignatureAlgorithms option) and will use
the rsa-sha2-512 signature algorithm by default when the ssh-keygen(1)
CA signs new certificates.
- ssh(1), sshd(8): Remove diffie-hellman-group14-sha1 from the default
key exchange proposal for both the client and server.
- ssh-keygen(1): The command-line options related to the generation and
screening of safe prime numbers used by the
diffie-hellman-group-exchange-* key exchange algorithms have changed.
Most options have been folded under the -O flag.
- sshd(8): The sshd listener process title visible to ps(1) has changed
to include information about the number of connections that are
currently attempting authentication and the limits configured by
MaxStartups.
- Add support for FIDO/U2F hardware authenticators.
- ssh-keygen(1): Add a "no-touch-required" option when generating
FIDO-hosted keys, that disables their default behaviour of requiring a
physical touch/tap on the token during authentication. Note: not all
tokens support disabling the touch requirement.
- sshd(8): Add a sshd_config PubkeyAuthOptions directive that collects
miscellaneous public key authentication-related options for sshd(8).
At present it supports only a single option "no-touch-required". This
causes sshd to skip its default check for FIDO/U2F keys that the
signature was authorised by a touch or press event on the token
hardware.
- ssh(1), sshd(8), ssh-keygen(1): Add a "no-touch-required" option for
authorized_keys and a similar extension for certificates. This option
disables the default requirement that FIDO key signatures attest that
the user touched their key to authorize them, mirroring the similar
PubkeyAuthOptions sshd_config option.
- ssh-keygen(1): Add support for the writing the FIDO attestation
information that is returned when new keys are generated via the "-O
write-attestation=/path" option. FIDO attestation certificates may be
used to verify that a FIDO key is hosted in trusted hardware. OpenSSH
does not currently make use of this information, beyond optionally
writing it to disk.
- Add support for FIDO2 resident keys.
- sshd(8): Add an Include sshd_config keyword that allows including
additional configuration files via glob(3) patterns (closes: #631189).
- ssh(1)/sshd(8): Make the LE (low effort) DSCP code point available via
the IPQoS directive.
- ssh(1): When AddKeysToAgent=yes is set and the key contains no
comment, add the key to the agent with the key's path as the comment.
- ssh-keygen(1), ssh-agent(1): Expose PKCS#11 key labels and X.509
subjects as key comments, rather than simply listing the PKCS#11
provider library path.
- ssh-keygen(1): Allow PEM export of DSA and ECDSA keys.
- sshd(8): When clients get denied by MaxStartups, send a notification
prior to the SSH2 protocol banner according to RFC4253 section 4.2
(closes: #275458).
- ssh(1), ssh-agent(1): When invoking the $SSH_ASKPASS prompt program,
pass a hint to the program to describe the type of desired prompt.
The possible values are "confirm" (indicating that a yes/no
confirmation dialog with no text entry should be shown), "none" (to
indicate an informational message only), or blank for the original
ssh-askpass behaviour of requesting a password/phrase.
- ssh(1): Allow forwarding a different agent socket to the path
specified by $SSH_AUTH_SOCK, by extending the existing ForwardAgent
option to accepting an explicit path or the name of an environment
variable in addition to yes/no.
- ssh-keygen(1): Add a new signature operations "find-principals" to
look up the principal associated with a signature from an
allowed-signers file.
- sshd(8): Expose the number of currently-authenticating connections
along with the MaxStartups limit in the process title visible to "ps".
- sshd(8): Make ClientAliveCountMax=0 have sensible semantics: it will
now disable connection killing entirely rather than the current
behaviour of instantly killing the connection after the first liveness
test regardless of success.
- sshd(8): Clarify order of AllowUsers / DenyUsers vs AllowGroups /
DenyGroups in the sshd(8) manual page.
- sshd(8): Better describe HashKnownHosts in the manual page.
- sshd(8): Clarify that that permitopen=/PermitOpen do no name or
address translation in the manual page.
- sshd(8): Allow the UpdateHostKeys feature to function when multiple
known_hosts files are in use. When updating host keys, ssh will now
search subsequent known_hosts files, but will add updated host keys to
the first specified file only.
- All: Replace all calls to signal(2) with a wrapper around
sigaction(2). This wrapper blocks all other signals during the
handler preventing races between handlers, and sets SA_RESTART which
should reduce the potential for short read/write operations.
- sftp(1): Fix a race condition in the SIGCHILD handler that could turn
in to a kill(-1).
- sshd(8): Fix a case where valid (but extremely large) SSH channel IDs
were being incorrectly rejected.
- ssh(1): When checking host key fingerprints as answers to new hostkey
prompts, ignore whitespace surrounding the fingerprint itself.
- All: Wait for file descriptors to be readable or writeable during
non-blocking connect, not just readable. Prevents a timeout when the
server doesn't immediately send a banner (e.g. multiplexers like
sslh).
- sshd_config(5): Document the <email address hidden>
key exchange algorithm.
* Add more historical md5sums of /etc/ssh/sshd_config between 1:7.4p1-1
and 1:7.8p1-1 inclusive (closes: #951220).
* ssh(1): Explain that -Y is equivalent to -X in the default configuration
(closes: #951640).
* Include /etc/ssh/ssh_config.d/*.conf from /etc/ssh/ssh_config and
/etc/ssh/sshd_config.d/*.conf from /etc/ssh/sshd_config (closes:
#845315).
-- Colin Watson <email address hidden> Fri, 21 Feb 2020 16:36:37 +0000
-
openssh (1:8.1p1-5) unstable; urgency=medium
* Apply upstream patches to allow clock_nanosleep() and variants in the
seccomp sandbox, fixing failures with glibc 2.31.
* Apply upstream patch to deny (non-fatally) ipc in the seccomp sandbox,
fixing failures with OpenSSL 1.1.1d and Linux < 3.19 on some
architectures (closes: #946242).
-- Colin Watson <email address hidden> Sat, 11 Jan 2020 23:55:03 +0000
-
openssh (1:8.1p1-4) unstable; urgency=medium
* Apply upstream patch to stop using 2020 as a future date in regress
tests.
-- Colin Watson <email address hidden> Thu, 09 Jan 2020 11:42:10 +0000
-
openssh (1:8.1p1-3) unstable; urgency=medium
[ Colin Watson ]
* Drop suggestion of rssh, since it's been removed (see
https://bugs.debian.org/923691).
[ Steve Langasek ]
* Don't build openssh-tests on Ubuntu i386 (closes: #948466).
-- Colin Watson <email address hidden> Thu, 09 Jan 2020 00:29:58 +0000
-
openssh (1:8.1p1-2) unstable; urgency=medium
* Drop "Allow flock and ipc syscall for s390 architecture" patch for now;
upstream has security concerns with it and it doesn't currently seem to
be needed.
* Mark openssh-sftp-server, openssh-tests, ssh, and ssh-askpass-gnome as
Multi-Arch: foreign; none of them provide any architecture-dependent
interfaces.
-- Colin Watson <email address hidden> Wed, 11 Dec 2019 23:53:49 +0000
-
openssh (1:8.1p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/txt/release-8.1):
- ssh(1), sshd(8), ssh-agent(1): Add protection for private keys at rest
in RAM against speculation and memory side-channel attacks like
Spectre, Meltdown and Rambleed. This release encrypts private keys
when they are not in use with a symmetric key that is derived from a
relatively large "prekey" consisting of random data (currently 16KB).
- ssh(1): Allow %n to be expanded in ProxyCommand strings.
- ssh(1), sshd(8): Allow prepending a list of algorithms to the default
set by starting the list with the '^' character, e.g.
"HostKeyAlgorithms ^ssh-ed25519".
- ssh-keygen(1): Add an experimental lightweight signature and
verification ability. Signatures may be made using regular ssh keys
held on disk or stored in a ssh-agent and verified against an
authorized_keys-like list of allowed keys. Signatures embed a
namespace that prevents confusion and attacks between different usage
domains (e.g. files vs email).
- ssh-keygen(1): Print key comment when extracting public key from a
private key.
- ssh-keygen(1): Accept the verbose flag when searching for host keys in
known hosts (i.e. "ssh-keygen -vF host") to print the matching host's
random-art signature too.
- All: Support PKCS8 as an optional format for storage of private keys
to disk. The OpenSSH native key format remains the default, but PKCS8
is a superior format to PEM if interoperability with non-OpenSSH
software is required, as it may use a less insecure key derivation
function than PEM's.
- ssh(1): If a PKCS#11 token returns no keys then try to login and
refetch them.
- ssh(1): Produce a useful error message if the user's shell is set
incorrectly during "match exec" processing.
- sftp(1): Allow the maximum uint32 value for the argument passed to -b
which allows better error messages from later validation.
- ssh-keyscan(1): Include SHA2-variant RSA key algorithms in KEX
proposal; allows ssh-keyscan to harvest keys from servers that disable
old SHA1 ssh-rsa.
- sftp(1): Print explicit "not modified" message if a file was requested
for resumed download but was considered already complete.
- sftp(1): Fix a typo and make <esc><right> move right to the closest
end of a word just like <esc><left> moves left to the closest
beginning of a word.
- sshd(8): Cap the number of permitopen/permitlisten directives allowed
to appear on a single authorized_keys line.
- All: Fix a number of memory leaks (one-off or on exit paths).
- ssh(1), sshd(8): Check for convtime() refusing to accept times that
resolve to LONG_MAX.
- ssh(1): Slightly more instructive error message when the user
specifies multiple -J options on the command-line (closes: #929669).
- ssh-agent(1): Process agent requests for RSA certificate private keys
using correct signature algorithm when requested.
- sftp(1): Check for user@host when parsing sftp target. This allows
user@[1.2.3.4] to work without a path.
- sshd(8): Enlarge format buffer size for certificate serial number so
the log message can record any 64-bit integer without truncation.
- sshd(8): For PermitOpen violations add the remote host and port to be
able to more easily ascertain the source of the request. Add the same
logging for PermitListen violations which were not previously logged
at all.
- scp(1), sftp(1): Use the correct POSIX format style for left
justification for the transfer progress meter.
- sshd(8): When examining a configuration using sshd -T, assume any
attribute not provided by -C does not match, which allows it to work
when sshd_config contains a Match directive with or without -C.
- ssh(1), ssh-keygen(1): Downgrade PKCS#11 "provider returned no slots"
warning from log level error to debug. This is common when attempting
to enumerate keys on smartcard readers with no cards plugged in.
- ssh(1), ssh-keygen(1): Do not unconditionally log in to PKCS#11
tokens. Avoids spurious PIN prompts for keys not selected for
authentication in ssh(1) and when listing public keys available in a
token using ssh-keygen(1).
- ssh(1), sshd(8): Fix typo that prevented detection of Linux VRF.
- sshd(8): In the Linux seccomp-bpf sandbox, allow mprotect(2) with
PROT_(READ|WRITE|NONE) only. This syscall is used by some hardened
heap allocators.
- sshd(8): In the Linux seccomp-bpf sandbox, allow the s390-specific
ioctl for ECC hardware support.
* Re-enable hardening on hppa, since the corresponding GCC bug is
apparently fixed.
-- Colin Watson <email address hidden> Thu, 10 Oct 2019 10:23:19 +0100
-
openssh (1:8.0p1-7) unstable; urgency=medium
[ Daniel Kahn Gillmor ]
* runit: Correct typo in comment.
[ Colin Watson ]
* Apply upstream patch to deny (non-fatally) shmget/shmat/shmdt in preauth
privsep child, coping with changes in OpenSSL 1.1.1d that broke OpenSSH
on Linux kernels before 3.19 (closes: #941663).
-- Colin Watson <email address hidden> Sat, 05 Oct 2019 22:41:11 +0100
-
openssh (1:8.0p1-6) unstable; urgency=medium
* Only run dh_runit on openssh-server (closes: #935936).
-- Colin Watson <email address hidden> Wed, 28 Aug 2019 10:53:18 +0100
-
openssh (1:8.0p1-5) unstable; urgency=medium
[ Lorenzo Puliti ]
* Add a runscript for runit (closes: #933999).
-- Colin Watson <email address hidden> Tue, 27 Aug 2019 15:18:54 +0100
-
openssh (1:8.0p1-4) unstable; urgency=medium
* Use debhelper-compat instead of debian/compat.
* debian/*.apport:
- Remove #! lines.
- Avoid star imports.
- Fix flake8 errors.
* Run regression tests against the Python 3 version of Twisted Conch.
-- Colin Watson <email address hidden> Sat, 03 Aug 2019 13:33:24 +0100
-
openssh (1:8.0p1-3) unstable; urgency=medium
* Upload to unstable.
-- Colin Watson <email address hidden> Mon, 08 Jul 2019 17:19:37 +0100
-
openssh (1:7.9p1-10+deb10u2) buster; urgency=medium
* Apply upstream patch to deny (non-fatally) ipc in the seccomp sandbox,
fixing failures with OpenSSL 1.1.1d and Linux < 3.19 on some
architectures (closes: #946242). Note that this also drops the previous
change to allow ipc on s390, since upstream has security concerns with
that and it doesn't currently seem to be needed.
-- Colin Watson <email address hidden> Fri, 31 Jan 2020 20:55:34 +0000
-
openssh (1:7.9p1-10+deb10u1) buster-security; urgency=high
* Apply upstream patch to deny (non-fatally) shmget/shmat/shmdt in preauth
privsep child, coping with changes in OpenSSL 1.1.1d that broke OpenSSH
on Linux kernels before 3.19 (closes: #941663).
-- Colin Watson <email address hidden> Sun, 06 Oct 2019 19:18:07 +0100
-
openssh (1:7.9p1-10) unstable; urgency=medium
* Temporarily revert IPQoS defaults to pre-7.8 values until issues with
"iptables -m tos" and VMware have been fixed (closes: #923879, #926229;
LP: #1822370).
-- Colin Watson <email address hidden> Mon, 08 Apr 2019 11:13:04 +0100
-
openssh (1:7.9p1-9) unstable; urgency=medium
* Apply upstream patch to make scp handle shell-style brace expansions
when checking that filenames sent by the server match what the client
requested (closes: #923486).
-- Colin Watson <email address hidden> Fri, 01 Mar 2019 12:23:36 +0000
-
openssh (1:7.9p1-8) unstable; urgency=medium
[ Colin Watson ]
* Apply upstream patch to fix bug in HostbasedAcceptedKeyTypes and
PubkeyAcceptedKeyTypes options in the case where only RSA-SHA2 signature
types were specified.
* Apply upstream patch to request RSA-SHA2 signatures for
rsa-sha2-{256|512}-<email address hidden> cert algorithms (closes:
#923419).
* Move moduli(5) manual page to openssh-server to go with /etc/ssh/moduli;
forgotten in 1:7.9p1-5.
[ Dominik George ]
* Correctly handle conffile move to openssh-server (closes: #919344).
-- Colin Watson <email address hidden> Thu, 28 Feb 2019 19:31:49 +0000
-
openssh (1:7.9p1-7) unstable; urgency=medium
* Recommend "default-logind | logind | libpam-systemd" rather than just
libpam-systemd (closes: #923199). (I've retained libpam-systemd as an
alternative for a while to avoid backporting accidents, although it can
be removed later.)
* Pass "--exec /usr/sbin/sshd" to start-stop-daemon on stop as well as
start and pass "--chuid 0:0" on start, to avoid problems with non-root
groups leaking into the ownership of /run/sshd.pid (closes: #922365).
-- Colin Watson <email address hidden> Tue, 26 Feb 2019 15:13:23 +0000
-
openssh (1:7.9p1-6) unstable; urgency=medium
* CVE-2019-6109: Apply upstream patches to sanitize scp filenames via
snmprintf (closes: #793412).
* CVE-2019-6111: Apply upstream patch to check in scp client that
filenames sent during remote->local directory copies satisfy the
wildcard specified by the user.
-- Colin Watson <email address hidden> Fri, 08 Feb 2019 16:26:35 +0000
-
openssh (1:7.9p1-5) unstable; urgency=high
* Move /etc/ssh/moduli to openssh-server, since it's reasonably large and
only used by sshd (closes: #858050).
* Drop obsolete alternate build-dependency on libssl1.0-dev (closes:
#917342).
* CVE-2018-20685: Apply upstream scp patch to disallow empty incoming
filename or ones that refer to the current directory (closes: #919101).
-- Colin Watson <email address hidden> Sun, 13 Jan 2019 11:22:45 +0000
-
openssh (1:7.9p1-4) unstable; urgency=medium
* Fix Ubuntu detection in debian/rules, since the documentation comment
for dpkg_vendor_derives_from is wrong (thanks, Jeremy Bicha; see
#913816).
-- Colin Watson <email address hidden> Fri, 16 Nov 2018 11:27:28 +0000
-
openssh (1:7.9p1-3) unstable; urgency=medium
* Be more specific about what files to install in openssh-tests, to avoid
installing a symlink into the build tree.
* Re-export debian/upstream/signing-key.asc without extra signatures.
* Restore direct test dependencies on openssl, putty-tools, and
python-twisted-conch; these are really only indirect dependencies via
openssh-tests, but including them means that this package will be
retested when they change.
-- Colin Watson <email address hidden> Thu, 15 Nov 2018 01:30:56 +0000
-
openssh (1:7.9p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/txt/release-7.9):
- ssh(1), sshd(8): allow most port numbers to be specified using service
names from getservbyname(3) (typically /etc/services; closes:
#177406).
- ssh(1): allow the IdentityAgent configuration directive to accept
environment variable names. This supports the use of multiple agent
sockets without needing to use fixed paths.
- sshd(8): support signalling sessions via the SSH protocol. A limited
subset of signals is supported and only for login or command sessions
(i.e. not subsystems) that were not subject to a forced command via
authorized_keys or sshd_config.
- ssh(1): support "ssh -Q sig" to list supported signature options.
Also "ssh -Q help" to show the full set of supported queries.
- ssh(1), sshd(8): add a CASignatureAlgorithms option for the client and
server configs to allow control over which signature formats are
allowed for CAs to sign certificates. For example, this allows
banning CAs that sign certificates using the RSA-SHA1 signature
algorithm.
- sshd(8), ssh-keygen(1): allow key revocation lists (KRLs) to revoke
keys specified by SHA256 hash.
- ssh-keygen(1): allow creation of key revocation lists directly from
base64-encoded SHA256 fingerprints. This supports revoking keys using
only the information contained in sshd(8) authentication log messages.
- ssh(1), ssh-keygen(1): avoid spurious "invalid format" errors when
attempting to load PEM private keys while using an incorrect
passphrase.
- sshd(8): when a channel closed message is received from a client,
close the stderr file descriptor at the same time stdout is closed.
This avoids stuck processes if they were waiting for stderr to close
and were insensitive to stdin/out closing (closes: #844494).
- ssh(1): allow ForwardX11Timeout=0 to disable the untrusted X11
forwarding timeout and support X11 forwarding indefinitely.
Previously the behaviour of ForwardX11Timeout=0 was undefined.
- sshd(8): when compiled with GSSAPI support, cache supported method
OIDs regardless of whether GSSAPI authentication is enabled in the
main section of sshd_config. This avoids sandbox violations if GSSAPI
authentication was later enabled in a Match block.
- sshd(8): do not fail closed when configured with a text key revocation
list that contains a too-short key.
- ssh(1): treat connections with ProxyJump specified the same as ones
with a ProxyCommand set with regards to hostname canonicalisation
(i.e. don't try to canonicalise the hostname unless
CanonicalizeHostname is set to 'always').
- ssh(1): fix regression in OpenSSH 7.8 that could prevent public-key
authentication using certificates hosted in a ssh-agent(1) or against
sshd(8) from OpenSSH <7.8 (LP: #1790963).
- All: support building against the openssl-1.1 API (releases 1.1.0g and
later). The openssl-1.0 API will remain supported at least until
OpenSSL terminates security patch support for that API version
(closes: #828475).
- sshd(8): allow the futex(2) syscall in the Linux seccomp sandbox;
apparently required by some glibc/OpenSSL combinations.
* Remove dh_builddeb override to use xz compression; this has been the
default since dpkg 1.17.0.
* Simplify debian/rules using /usr/share/dpkg/default.mk.
* Remove /etc/network/if-up.d/openssh-server, as it causes more problems
than it solves (thanks, Christian Ehrhardt, Andreas Hasenack, and David
Britton; closes: #789532, LP: #1037738, #1674330, #1718227). Add an
"if-up hook removed" section to README.Debian documenting the corner
case that may need configuration adjustments.
-- Colin Watson <email address hidden> Sun, 21 Oct 2018 10:39:24 +0100
-
openssh (1:7.8p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/txt/release-7.8, closes:
#907534):
- ssh-keygen(1): Write OpenSSH format private keys by default instead of
using OpenSSL's PEM format (closes: #905407). The OpenSSH format,
supported in OpenSSH releases since 2014 and described in the
PROTOCOL.key file in the source distribution, offers substantially
better protection against offline password guessing and supports key
comments in private keys. If necessary, it is possible to write old
PEM-style keys by adding "-m PEM" to ssh-keygen's arguments when
generating or updating a key.
- sshd(8): Remove internal support for S/Key multiple factor
authentication. S/Key may still be used via PAM or BSD auth.
- ssh(1): Remove vestigial support for running ssh(1) as setuid. This
used to be required for hostbased authentication and the (long gone)
rhosts-style authentication, but has not been necessary for a long
time. Attempting to execute ssh as a setuid binary, or with uid !=
effective uid will now yield a fatal error at runtime.
- sshd(8): The semantics of PubkeyAcceptedKeyTypes and the similar
HostbasedAcceptedKeyTypes options have changed. These now specify
signature algorithms that are accepted for their respective
authentication mechanism, where previously they specified accepted key
types. This distinction matters when using the RSA/SHA2 signature
algorithms "rsa-sha2-256", "rsa-sha2-512" and their certificate
counterparts. Configurations that override these options but omit
these algorithm names may cause unexpected authentication failures (no
action is required for configurations that accept the default for
these options).
- sshd(8): The precedence of session environment variables has changed.
~/.ssh/environment and environment="..." options in authorized_keys
files can no longer override SSH_* variables set implicitly by sshd.
- ssh(1)/sshd(8): The default IPQoS used by ssh/sshd has changed. They
will now use DSCP AF21 for interactive traffic and CS1 for bulk. For
a detailed rationale, please see the commit message:
https://cvsweb.openbsd.org/src/usr.bin/ssh/readconf.c#rev1.284
- ssh(1)/sshd(8): Add new signature algorithms "rsa-sha2-256-cert-
<email address hidden>" and "<email address hidden>" to explicitly
force use of RSA/SHA2 signatures in authentication.
- sshd(8): Extend the PermitUserEnvironment option to accept a whitelist
of environment variable names in addition to global "yes" or "no"
settings.
- sshd(8): Add a PermitListen directive to sshd_config(5) and a
corresponding permitlisten= authorized_keys option that control which
listen addresses and port numbers may be used by remote forwarding
(ssh -R ...).
- sshd(8): Add some countermeasures against timing attacks used for
account validation/enumeration. sshd will enforce a minimum time or
each failed authentication attempt consisting of a global 5ms minimum
plus an additional per-user 0-4ms delay derived from a host secret.
- sshd(8): Add a SetEnv directive to allow an administrator to
explicitly specify environment variables in sshd_config. Variables
set by SetEnv override the default and client-specified environment.
- ssh(1): Add a SetEnv directive to request that the server sets an
environment variable in the session. Similar to the existing SendEnv
option, these variables are set subject to server configuration.
- ssh(1): Allow "SendEnv -PATTERN" to clear environment variables
previously marked for sending to the server (closes: #573316).
- ssh(1)/sshd(8): Make UID available as a %-expansion everywhere that
the username is available currently.
- ssh(1): Allow setting ProxyJump=none to disable ProxyJump
functionality.
- sshd(8): Avoid observable differences in request parsing that could be
used to determine whether a target user is valid.
- ssh(1)/sshd(8): Fix some memory leaks.
- ssh(1): Fix a pwent clobber (introduced in openssh-7.7) that could
occur during key loading, manifesting as crash on some platforms.
- sshd_config(5): Clarify documentation for AuthenticationMethods
option.
- ssh(1): Ensure that the public key algorithm sent in a public key
SSH_MSG_USERAUTH_REQUEST matches the content of the signature blob.
Previously, these could be inconsistent when a legacy or non-OpenSSH
ssh-agent returned a RSA/SHA1 signature when asked to make a RSA/SHA2
signature.
- sshd(8): Fix failures to read authorized_keys caused by faulty
supplemental group caching.
- scp(1): Apply umask to directories, fixing potential mkdir/chmod race
when copying directory trees.
- ssh-keygen(1): Return correct exit code when searching for and hashing
known_hosts entries in a single operation.
- ssh(1): Prefer the ssh binary pointed to via argv[0] to $PATH when
re-executing ssh for ProxyJump.
- sshd(8): Do not ban PTY allocation when a sshd session is restricted
because the user password is expired as it breaks password change
dialog.
- ssh(1)/sshd(8): Fix error reporting from select() failures.
- ssh(1): Improve documentation for -w (tunnel) flag, emphasising that
-w implicitly sets Tunnel=point-to-point.
- ssh-agent(1): Implement EMFILE mitigation for ssh-agent. ssh-agent
will no longer spin when its file descriptor limit is exceeded.
- ssh(1)/sshd(8): Disable SSH2_MSG_DEBUG messages for Twisted Conch
clients. Twisted Conch versions that lack a version number in their
identification strings will mishandle these messages when running on
Python 2.x (https://twistedmatrix.com/trac/ticket/9422).
- sftp(1): Notify user immediately when underlying ssh process dies
expectedly.
- ssh(1)/sshd(8): Fix tunnel forwarding; regression in 7.7 release.
- ssh-agent(1): Don't kill ssh-agent's listening socket entirely if it
fails to accept(2) a connection.
- ssh(1): Add some missing options in the configuration dump output (ssh
-G).
- sshd(8): Expose details of completed authentication to PAM auth
modules via SSH_AUTH_INFO_0 in the PAM environment.
* Switch debian/watch to HTTPS.
* Temporarily work around https://twistedmatrix.com/trac/ticket/9515 in
regression tests.
-- Colin Watson <email address hidden> Thu, 30 Aug 2018 15:35:27 +0100
-
openssh (1:7.7p1-4) unstable; urgency=high
* Apply upstream patch to delay bailout for invalid authenticating user
until after the packet containing the request has been fully parsed
(closes: #906236).
-- Colin Watson <email address hidden> Fri, 17 Aug 2018 14:09:32 +0100
-
openssh (1:7.7p1-3) unstable; urgency=medium
[ Colin Watson ]
* Adjust git-dpm tagging configuration.
* Remove no-longer-used Lintian overrides from openssh-server and ssh.
* Add Documentation keys to ssh-agent.service, ssh.service, and
ssh@.service.
[ Juri Grabowski ]
* Add rescue.target with ssh support.
[ Christian Ehrhardt ]
* Fix unintentional restriction of authorized keys environment options
to be alphanumeric (closes: #903474, LP: #1771011).
-- Colin Watson <email address hidden> Tue, 10 Jul 2018 16:07:16 +0100
-
openssh (1:7.7p1-2) unstable; urgency=medium
* Fix parsing of DebianBanner option (closes: #894730).
-- Colin Watson <email address hidden> Wed, 04 Apr 2018 00:47:29 +0100
-
openssh (1:7.7p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/txt/release-7.7):
- ssh(1)/sshd(8): Drop compatibility support for some very old SSH
implementations, including ssh.com <=2.* and OpenSSH <= 3.*. These
versions were all released in or before 2001 and predate the final SSH
RFCs. The support in question isn't necessary for RFC-compliant SSH
implementations.
- Add experimental support for PQC XMSS keys (Extended Hash-Based
Signatures).
- sshd(8): Add an "rdomain" criterion for the sshd_config Match keyword
to allow conditional configuration that depends on which routing
domain a connection was received on.
- sshd_config(5): Add an optional rdomain qualifier to the ListenAddress
directive to allow listening on different routing domains.
- sshd(8): Add "expiry-time" option for authorized_keys files to allow
for expiring keys.
- ssh(1): Add a BindInterface option to allow binding the outgoing
connection to an interface's address (basically a more usable
BindAddress; closes: #289592).
- ssh(1): Expose device allocated for tun/tap forwarding via a new %T
expansion for LocalCommand. This allows LocalCommand to be used to
prepare the interface.
- sshd(8): Expose the device allocated for tun/tap forwarding via a new
SSH_TUNNEL environment variable. This allows automatic setup of the
interface and surrounding network configuration automatically on the
server.
- ssh(1)/scp(1)/sftp(1): Add URI support to ssh, sftp and scp, e.g.
ssh://user@host or sftp://user@host/path. Additional connection
parameters described in draft-ietf-secsh-scp-sftp-ssh-uri-04 are not
implemented since the ssh fingerprint format in the draft uses the
deprecated MD5 hash with no way to specify any other algorithm.
- ssh-keygen(1): Allow certificate validity intervals that specify only
a start or stop time (instead of both or neither).
- sftp(1): Allow "cd" and "lcd" commands with no explicit path argument.
lcd will change to the local user's home directory as usual. cd will
change to the starting directory for session (because the protocol
offers no way to obtain the remote user's home directory).
- sshd(8): When doing a config test with sshd -T, only require the
attributes that are actually used in Match criteria rather than (an
incomplete list of) all criteria.
- ssh(1)/sshd(8): More strictly check signature types during key
exchange against what was negotiated. Prevents downgrade of RSA
signatures made with SHA-256/512 to SHA-1.
- sshd(8): Fix support for client that advertise a protocol version of
"1.99" (indicating that they are prepared to accept both SSHv1 and
SSHv2). This was broken in OpenSSH 7.6 during the removal of SSHv1
support.
- ssh(1): Warn when the agent returns a ssh-rsa (SHA1) signature when a
rsa-sha2-256/512 signature was requested. This condition is possible
when an old or non-OpenSSH agent is in use.
- ssh-agent(1): Fix regression introduced in 7.6 that caused ssh-agent
to fatally exit if presented an invalid signature request message.
- sshd_config(5): Accept yes/no flag options case-insensitively, as has
been the case in ssh_config(5) for a long time (LP: #1656557).
- ssh(1): Improve error reporting for failures during connection. Under
some circumstances misleading errors were being shown.
- ssh-keyscan(1): Add -D option to allow printing of results directly in
SSHFP format.
- ssh(1): Compatibility fix for some servers that erroneously drop the
connection when the IUTF8 (RFC8160) option is sent.
- scp(1): Disable RemoteCommand and RequestTTY in the ssh session
started by scp (sftp was already doing this).
- ssh-keygen(1): Refuse to create a certificate with an unusable number
of principals.
- ssh-keygen(1): Fatally exit if ssh-keygen is unable to write all the
public key during key generation. Previously it would silently ignore
errors writing the comment and terminating newline.
- ssh(1): Do not modify hostname arguments that are addresses by
automatically forcing them to lower-case. Instead canonicalise them
jo resolve ambiguities (e.g. ::0001 => ::1) before they are matched
against known_hosts.
- ssh(1): Don't accept junk after "yes" or "no" responses to hostkey
prompts.
- sftp(1): Have sftp print a warning about shell cleanliness when
decoding the first packet fails, which is usually caused by shells
polluting stdout of non-interactive startups.
- ssh(1)/sshd(8): Switch timers in packet code from using wall-clock
time to monotonic time, allowing the packet layer to better function
over a clock step and avoiding possible integer overflows during
steps.
- sshd(8): Correctly detect MIPS ABI in use at configure time. Fixes
sandbox violations on some environments.
- Build and link with "retpoline" flags when available to mitigate the
"branch target injection" style (variant 2) of the Spectre
branch-prediction vulnerability.
-- Colin Watson <email address hidden> Tue, 03 Apr 2018 12:40:24 +0100
-
openssh (1:7.6p1-5) unstable; urgency=medium
* Explicitly build-depend on pkg-config, rather than implicitly
build-depending on it via libgtk-3-dev (thanks, Aurelien Jarno; closes:
#894558).
-- Colin Watson <email address hidden> Sun, 01 Apr 2018 21:37:19 +0100
-
openssh (1:7.6p1-4) unstable; urgency=medium
* Move VCS to salsa.debian.org.
* Add a preseeding-only openssh-server/password-authentication debconf
template that can be used to disable password authentication (closes:
#878945).
-- Colin Watson <email address hidden> Sat, 10 Feb 2018 02:31:46 +0000
-
openssh (1:7.6p1-3) unstable; urgency=medium
[ Colin Watson ]
* Remove the decade-old ssh-krb5 transitional package; upgrades of
openssh-server will preserve existing configuration, and new
installations should just enable GSSAPIAuthentication and
GSSAPIKeyExchange in sshd_config (closes: #878626).
* Support the "noudeb" build profile.
* Fix putty-transfer regression test.
[ Anders Kaseorg ]
* debian/systemd/ssh-agent.service: Add missing dbus dependency.
[ Jason Duerstock ]
* Add a "pkg.openssh.nognome" build profile, which disables building the
ssh-askpass-gnome binary package and avoids the build-dependency on
libgtk-3-dev (closes: #883819).
-- Colin Watson <email address hidden> Tue, 16 Jan 2018 17:41:08 +0000
-
openssh (1:7.6p1-2) unstable; urgency=medium
* Apply upstream patch to fix PermitOpen argument handling.
-- Colin Watson <email address hidden> Sat, 07 Oct 2017 13:44:13 +0100
-
openssh (1:7.6p1-1) unstable; urgency=medium
* New upstream release (https://www.openssh.com/txt/release-7.6):
- SECURITY: sftp-server(8): In read-only mode, sftp-server was
incorrectly permitting creation of zero-length files. Reported by
Michal Zalewski.
- ssh(1): Delete SSH protocol version 1 support, associated
configuration options and documentation (LP: #1584321).
- ssh(1)/sshd(8): Remove support for the hmac-ripemd160 MAC.
- ssh(1)/sshd(8): Remove support for the arcfour, blowfish and CAST
ciphers.
- Refuse RSA keys <1024 bits in length and improve reporting for keys
that do not meet this requirement.
- ssh(1): Do not offer CBC ciphers by default.
- ssh(1): Add RemoteCommand option to specify a command in the ssh
config file instead of giving it on the client's command line. This
allows the configuration file to specify the command that will be
executed on the remote host.
- sshd(8): Add ExposeAuthInfo option that enables writing details of the
authentication methods used (including public keys where applicable)
to a file that is exposed via a $SSH_USER_AUTH environment variable in
the subsequent session.
- ssh(1): Add support for reverse dynamic forwarding. In this mode, ssh
will act as a SOCKS4/5 proxy and forward connections to destinations
requested by the remote SOCKS client. This mode is requested using
extended syntax for the -R and RemoteForward options and, because it
is implemented solely at the client, does not require the server be
updated to be supported.
- sshd(8): Allow LogLevel directive in sshd_config Match blocks.
- ssh-keygen(1): Allow inclusion of arbitrary string or flag certificate
extensions and critical options.
- ssh-keygen(1): Allow ssh-keygen to use a key held in ssh-agent as a CA
when signing certificates.
- ssh(1)/sshd(8): Allow IPQoS=none in ssh/sshd to not set an explicit
ToS/DSCP value and just use the operating system default.
- ssh-add(1): Add -q option to make ssh-add quiet on success.
- ssh(1): Expand the StrictHostKeyChecking option with two new settings.
The first "accept-new" will automatically accept hitherto-unseen keys
but will refuse connections for changed or invalid hostkeys. This is
a safer subset of the current behaviour of StrictHostKeyChecking=no.
The second setting "off", is a synonym for the current behaviour of
StrictHostKeyChecking=no: accept new host keys, and continue
connection for hosts with incorrect hostkeys. A future release will
change the meaning of StrictHostKeyChecking=no to the behaviour of
"accept-new".
- ssh(1): Add SyslogFacility option to ssh(1) matching the equivalent
option in sshd(8).
- ssh(1): Use HostKeyAlias if specified instead of hostname for matching
host certificate principal names.
- sftp(1): Implement sorting for globbed ls.
- ssh(1): Add a user@host prefix to client's "Permission denied"
messages, useful in particular when using "stacked" connections (e.g.
ssh -J) where it's not clear which host is denying.
- ssh(1): Accept unknown EXT_INFO extension values that contain \0
characters. These are legal, but would previously cause fatal
connection errors if received.
- sftp(1): Print '?' instead of incorrect link count (that the protocol
doesn't provide) for remote listings.
- ssh(1): Return failure rather than fatal() for more cases during
session multiplexing negotiations. Causes the session to fall back to
a non-mux connection if they occur.
- ssh(1): Mention that the server may send debug messages to explain
public key authentication problems under some circumstances.
- Translate OpenSSL error codes to better report incorrect passphrase
errors when loading private keys.
- sshd(8): Adjust compatibility patterns for WinSCP to correctly
identify versions that implement only the legacy DH group exchange
scheme (closes: #877800).
- ssh(1): Print the "Killed by signal 1" message only at LogLevel
verbose so that it is not shown at the default level; prevents it from
appearing during ssh -J and equivalent ProxyCommand configs.
- ssh-keygen(1): When generating all hostkeys (ssh-keygen -A), clobber
existing keys if they exist but are zero length. Zero-length keys
could previously be made if ssh-keygen failed or was interrupted part
way through generating them.
- ssh-keyscan(1): Avoid double-close() on file descriptors.
- sshd(8): Avoid reliance on shared use of pointers shared between
monitor and child sshd processes.
- sshd_config(8): Document available AuthenticationMethods.
- ssh(1): Avoid truncation in some login prompts.
- ssh(1): Make "--" before the hostname terminate argument processing
after the hostname too (closes: #873201).
- ssh-keygen(1): Switch from aes256-cbc to aes256-ctr for encrypting
new-style private keys.
- ssh(1): Warn and do not attempt to use keys when the public and
private halves do not match.
- sftp(1): Don't print verbose error message when ssh disconnects from
under sftp.
- sshd(8): Fix keepalive scheduling problem: prevent activity on a
forwarded port from preventing the keepalive from being sent.
- sshd(8): When started without root privileges, don't require the
privilege separation user or path to exist.
- ssh(1)/sshd(8): Correctness fix for channels implementation: accept
channel IDs greater than 0x7FFFFFFF.
- sshd(8): Expose list of completed authentication methods to PAM via
the SSH_AUTH_INFO_0 PAM environment variable.
- ssh(1)/sshd(8): Fix several problems in the tun/tap forwarding code,
mostly to do with host/network byte order confusion.
- sshd(8): Avoid Linux seccomp violations on ppc64le over the socketcall
syscall.
* Build-depend on debhelper (>= 9.20160709~) rather than dh-systemd.
* Change priorities of ssh and ssh-krb5 binary packages to optional, since
"Priority: extra" is now deprecated.
* Use HTTPS form of copyright-format URL.
* Adjust "Running sshd from inittab" instructions in README.Debian to
recommend using service(8) rather than calling the init script directly.
* Policy version 4.1.0.
* Adjust "Per-connection sshd instances with systemd" instructions in
README.Debian to recommend using a drop-in file rather than copying and
modifying the ssh.socket unit file.
-- Colin Watson <email address hidden> Fri, 06 Oct 2017 12:36:48 +0100
-
openssh (1:7.5p1-10) unstable; urgency=medium
* Tell haveged to create the pid file we expect.
* Give up and use systemctl to start haveged if running under systemd;
this shouldn't be necessary, but I can't seem to get things working in
the Ubuntu autopkgtest environment otherwise.
-- Colin Watson <email address hidden> Fri, 01 Sep 2017 11:17:19 +0100
-
openssh (1:7.5p1-9) unstable; urgency=medium
* Run debian/tests/regress with "set -x".
* Run haveged without "-w 1024", as setting the low water mark doesn't
seem possible in all autopkgtest virtualisation environments.
-- Colin Watson <email address hidden> Thu, 31 Aug 2017 13:23:04 +0100
-
openssh (1:7.5p1-8) unstable; urgency=medium
* Drop openssh-client-ssh1, now built by a separate source package.
* Run haveged during autopkgtests to ensure that they have enough entropy
for key generation (LP: #1712921).
* Apply patches from https://bugzilla.mindrot.org/show_bug.cgi?id=2752 to
allow some extra syscalls for crypto cards on s390x (LP: #1686618).
-- Colin Watson <email address hidden> Mon, 28 Aug 2017 12:16:35 +0100
-
openssh (1:7.5p1-7) unstable; urgency=medium
* Fix spelling of RuntimeDirectoryMode (closes: #872976).
* Add RuntimeDirectory and RuntimeDirectoryMode to ssh@.service as well as
ssh.service (closes: #872978).
-- Colin Watson <email address hidden> Wed, 23 Aug 2017 12:12:59 +0100
-
openssh (1:7.5p1-6) unstable; urgency=medium
[ Colin Watson ]
* Test configuration before starting or reloading sshd under systemd
(closes: #865770).
* Create /run/sshd under systemd using RuntimeDirectory rather than
tmpfiles.d (thanks, Dmitry Smirnov; closes: #864190).
[ Dimitri John Ledkov ]
* Drop upstart system and user jobs (closes: #872851).
[ Chris Lamb ]
* Quote IP address in suggested "ssh-keygen -f" calls (closes: #872643).
-- Colin Watson <email address hidden> Wed, 23 Aug 2017 01:41:06 +0100
-
openssh (1:7.5p1-5) unstable; urgency=medium
* Upload to unstable.
* Fix syntax error in debian/copyright.
-- Colin Watson <email address hidden> Sun, 18 Jun 2017 12:08:42 +0100
-
openssh (1:7.4p1-11) unstable; urgency=medium
* Fix incoming compression statistics (thanks, Russell Coker; closes:
#797964).
-- Colin Watson <email address hidden> Tue, 06 Jun 2017 15:03:48 +0100
-
openssh (1:7.4p1-10+deb9u5) stretch; urgency=high
* Non-maintainer upload by the Security Team.
* CVE-2018-20685: disallow empty filenames or ones that refer to the current
directory (Closes: #919101)
* CVE-2019-6109: sanitize scp filenames via snmprintf (Closes: #793412)
* CVE-2019-6111: check in scp client that filenames sent during
remote->local directory copies satisfy the wildcards specified by the user
-- Yves-Alexis Perez <email address hidden> Fri, 08 Feb 2019 15:25:55 +0100
-
openssh (1:7.4p1-10+deb9u4) stretch-security; urgency=high
* Non-maintainer upload by the Security Team
* CVE-2018-15473: fix username enumeration issue, initially reported
by Dariusz Tytko and Michal Sajdak (Closes: #906236)
-- Sebastien Delafond <email address hidden> Tue, 21 Aug 2018 05:14:18 +0200
-
openssh (1:7.4p1-10+deb9u3) stretch; urgency=medium
* CVE-2017-15906: sftp-server(8): In read-only mode, sftp-server was
incorrectly permitting creation of zero-length files. Reported by Michal
Zalewski.
-- Colin Watson <email address hidden> Thu, 01 Mar 2018 15:17:53 +0000
-
openssh (1:7.4p1-10+deb9u2) stretch; urgency=medium
* Test configuration before starting or reloading sshd under systemd
(closes: #865770).
* Adjust compatibility patterns for WinSCP to correctly identify versions
that implement only the legacy DH group exchange scheme (closes:
#877800).
* Make "--" before the hostname terminate argument processing after the
hostname too (closes: #873201).
-- Colin Watson <email address hidden> Sat, 18 Nov 2017 09:37:22 +0000
-
openssh (1:7.4p1-10+deb9u1) stretch; urgency=medium
* Fix incoming compression statistics (thanks, Russell Coker; closes:
#797964).
-- Colin Watson <email address hidden> Sun, 18 Jun 2017 01:11:26 +0100
-
openssh (1:7.4p1-10) unstable; urgency=medium
* Move privilege separation directory and PID file from /var/run/ to /run/
(closes: #760422, #856825).
* Unbreak Unix domain socket forwarding for root (closes: #858252).
-- Colin Watson <email address hidden> Thu, 30 Mar 2017 11:19:04 +0100
-
openssh (1:7.4p1-9) unstable; urgency=medium
* Fix null pointer dereference in ssh-keygen; this fixes an autopkgtest
regression introduced in 1:7.4p1-8.
-- Colin Watson <email address hidden> Thu, 16 Mar 2017 13:43:15 +0000
-
openssh (1:7.4p1-8) unstable; urgency=medium
* Fix ssh-keygen -H accidentally corrupting known_hosts that contained
already-hashed entries (closes: #851734, LP: #1668093).
* Fix ssh-keyscan to correctly hash hosts with a port number (closes:
#857736, LP: #1670745).
-- Colin Watson <email address hidden> Tue, 14 Mar 2017 13:49:14 +0000
-
openssh (1:7.4p1-7) unstable; urgency=medium
* Don't set "PermitRootLogin yes" on fresh installations (regression
introduced in 1:7.4p1-1; closes: #852781).
* Restore reading authorized_keys2 by default. Upstream seems to intend
to gradually phase this out, so don't assume that this will remain the
default forever. However, we were late in adopting the upstream
sshd_config changes, so it makes sense to extend the grace period
(closes: #852320).
-- Colin Watson <email address hidden> Sun, 05 Mar 2017 02:12:42 +0000
-
openssh (1:7.4p1-6) unstable; urgency=medium
* Remove temporary file on exit from postinst (closes: #850275).
* Remove LOGIN_PROGRAM and LOGIN_NO_ENDOPT definitions, since UseLogin is
gone.
* Document sshd_config changes that may be needed following the removal of
protocol 1 support from sshd (closes: #851573).
* Remove ssh_host_dsa_key from HostKey default (closes: #850614).
* Fix rekeying failure with GSSAPI key exchange (thanks, Harald Barth;
closes: #819361, LP: #1608965).
-- Colin Watson <email address hidden> Mon, 16 Jan 2017 15:11:10 +0000
-
openssh (1:7.4p1-5) unstable; urgency=medium
* Create mux socket for regression tests in a temporary directory.
* Work around clock_gettime kernel bug on Linux x32 (closes: #849923).
-- Colin Watson <email address hidden> Tue, 03 Jan 2017 14:43:28 +0000
-
openssh (1:7.4p1-4) unstable; urgency=medium
* Run regression tests inside annotate-output to try to diagnose timeout
issues.
* Make integrity tests more robust against timeouts in the case where the
first test in a series for a given MAC happens to modify the low bytes
of a packet length.
* Fix race conditions in forwarding tests.
-- Colin Watson <email address hidden> Mon, 02 Jan 2017 19:37:23 +0000
-
openssh (1:7.4p1-3) unstable; urgency=medium
* Revert attempted hack around regress/forwarding.sh test failure, since
it doesn't seem to help.
* Run regression tests using 'sh -x' to try to get more information about
failures.
* Dump some useful log files if regression tests fail.
* Tweak regression test setup to cope with the case where some of the
source directory is unreadable by the openssh-tests user.
-- Colin Watson <email address hidden> Sat, 31 Dec 2016 02:48:17 +0000
-
openssh (1:7.4p1-2) unstable; urgency=medium
* Attempt to hack around regress/forwarding.sh test failure in some
environments.
* Avoid calling into Kerberos libraries from ssh_gssapi_server_mechanisms
in the privsep monitor.
-- Colin Watson <email address hidden> Thu, 29 Dec 2016 12:02:12 +0000
-
openssh (1:7.4p1-1) unstable; urgency=medium
* New upstream release (http://www.openssh.com/txt/release-7.4):
- ssh(1): Remove 3des-cbc from the client's default proposal. 64-bit
block ciphers are not safe in 2016 and we don't want to wait until
attacks like SWEET32 are extended to SSH. As 3des-cbc was the only
mandatory cipher in the SSH RFCs, this may cause problems connecting
to older devices using the default configuration, but it's highly
likely that such devices already need explicit configuration for key
exchange and hostkey algorithms already anyway.
- sshd(8): When a forced-command appears in both a certificate and an
authorized keys/principals command= restriction, sshd will now refuse
to accept the certificate unless they are identical. The previous
(documented) behaviour of having the certificate forced-command
override the other could be a bit confusing and error-prone.
- sshd(8): Remove the UseLogin configuration directive and support for
having /bin/login manage login sessions.
- CVE-2016-10009: ssh-agent(1): Will now refuse to load PKCS#11 modules
from paths outside a trusted whitelist (run-time configurable).
Requests to load modules could be passed via agent forwarding and an
attacker could attempt to load a hostile PKCS#11 module across the
forwarded agent channel: PKCS#11 modules are shared libraries, so this
would result in code execution on the system running the ssh-agent if
the attacker has control of the forwarded agent-socket (on the host
running the sshd server) and the ability to write to the filesystem of
the host running ssh-agent (usually the host running the ssh client)
(closes: #848714).
- CVE-2016-10010: sshd(8): When privilege separation is disabled,
forwarded Unix-domain sockets would be created by sshd(8) with the
privileges of 'root' instead of the authenticated user. This release
refuses Unix-domain socket forwarding when privilege separation is
disabled (Privilege separation has been enabled by default for 14
years) (closes: #848715).
- CVE-2016-10011: sshd(8): Avoid theoretical leak of host private key
material to privilege-separated child processes via realloc() when
reading keys. No such leak was observed in practice for normal-sized
keys, nor does a leak to the child processes directly expose key
material to unprivileged users (closes: #848716).
- CVE-2016-10012: sshd(8): The shared memory manager used by
pre-authentication compression support had a bounds checks that could
be elided by some optimising compilers. Additionally, this memory
manager was incorrectly accessible when pre-authentication compression
was disabled. This could potentially allow attacks against the
privileged monitor process from the sandboxed privilege-separation
process (a compromise of the latter would be required first). This
release removes support for pre-authentication compression from
sshd(8) (closes: #848717).
- SECURITY: sshd(8): Validate address ranges for AllowUser and DenyUsers
directives at configuration load time and refuse to accept invalid
ones. It was previously possible to specify invalid CIDR address
ranges (e.g. user@127.1.2.3/55) and these would always match, possibly
resulting in granting access where it was not intended.
- ssh(1): Add a proxy multiplexing mode to ssh(1) inspired by the
version in PuTTY by Simon Tatham. This allows a multiplexing client
to communicate with the master process using a subset of the SSH
packet and channels protocol over a Unix-domain socket, with the main
process acting as a proxy that translates channel IDs, etc. This
allows multiplexing mode to run on systems that lack file-descriptor
passing (used by current multiplexing code) and potentially, in
conjunction with Unix-domain socket forwarding, with the client and
multiplexing master process on different machines. Multiplexing proxy
mode may be invoked using "ssh -O proxy ...".
- sshd(8): Add a sshd_config DisableForwarding option that disables X11,
agent, TCP, tunnel and Unix domain socket forwarding, as well as
anything else we might implement in the future. Like the 'restrict'
authorized_keys flag, this is intended to be a simple and future-proof
way of restricting an account.
- sshd(8), ssh(1): Support the "curve25519-sha256" key exchange method.
This is identical to the currently-supported method named
"<email address hidden>".
- sshd(8): Improve handling of SIGHUP by checking to see if sshd is
already daemonised at startup and skipping the call to daemon(3) if it
is. This ensures that a SIGHUP restart of sshd(8) will retain the
same process-ID as the initial execution. sshd(8) will also now
unlink the PidFile prior to SIGHUP restart and re-create it after a
successful restart, rather than leaving a stale file in the case of a
configuration error.
- sshd(8): Allow ClientAliveInterval and ClientAliveCountMax directives
to appear in sshd_config Match blocks.
- sshd(8): Add %-escapes to AuthorizedPrincipalsCommand to match those
supported by AuthorizedKeysCommand (key, key type, fingerprint, etc.)
and a few more to provide access to the contents of the certificate
being offered.
- ssh(1): Allow IdentityFile to successfully load and use certificates
that have no corresponding bare public key.
- ssh(1): Fix public key authentication when multiple authentication is
in use and publickey is not just the first method attempted.
- ssh(1): Improve reporting when attempting to load keys from PKCS#11
tokens with fewer useless log messages and more detail in debug
messages.
- ssh(1): When tearing down ControlMaster connections, don't pollute
stderr when LogLevel=quiet.
- sftp(1): On ^Z wait for underlying ssh(1) to suspend before suspending
sftp(1) to ensure that ssh(1) restores the terminal mode correctly if
suspended during a password prompt.
- ssh(1): Avoid busy-wait when ssh(1) is suspended during a password
prompt (LP: #1646813).
- ssh(1), sshd(8): Correctly report errors during sending of ext-info
messages.
- sshd(8): Fix NULL-deref crash if sshd(8) received an out-of-sequence
NEWKEYS message.
- sshd(8): Correct list of supported signature algorithms sent in the
server-sig-algs extension.
- sshd(8): Fix sending ext_info message if privsep is disabled.
- sshd(8): More strictly enforce the expected ordering of privilege
separation monitor calls used for authentication and allow them only
when their respective authentication methods are enabled in the
configuration.
- sshd_config(5): Use 2001:db8::/32, the official IPv6 subnet for
configuration examples.
- On environments configured with Turkish locales, fall back to the
C/POSIX locale to avoid errors in configuration parsing caused by that
locale's unique handling of the letters 'i' and 'I' (LP: #1638338).
- contrib: Add a gnome-ssh-askpass3 with GTK+3 support.
- sshd(8): Improve PRNG reseeding across privilege separation and force
libcrypto to obtain a high-quality seed before chroot or sandboxing.
* Apply "wrap-and-sort -at -f debian/control -f debian/tests/control".
* Remove entries related to protocol 1 from the default sshd_config
generated on new installations.
* Remove some advice related to protocol 1 from README.Debian.
* Start handling /etc/ssh/sshd_config using ucf. The immediate motivation
for this is to deal with deprecations of options related to protocol 1,
but something like this has been needed for a long time (closes:
#419574, #848089):
- sshd_config is now a slightly-patched version of upstream's, and only
contains non-default settings (closes: #147201).
- I've included as many historical md5sums of default versions of
sshd_config as I could reconstruct from version control, but I'm sure
I've missed some.
- Explicitly synchronise the debconf database with the current
configuration file state in openssh-server.config, to ensure that the
PermitRootLogin setting is properly preserved.
- UsePrivilegeSeparation now defaults to the stronger "sandbox" rather
than "yes", per upstream.
* Remove redundant "GSSAPIDelegateCredentials no" from ssh_config (already
the upstream default), and document that setting ServerAliveInterval to
300 by default if BatchMode is set is Debian-specific (closes: #765630).
* Build gnome-ssh-askpass with GTK+ 3 (LP: #801187).
* When running regression tests under autopkgtest, use a non-root user
with passwordless sudo.
-- Colin Watson <email address hidden> Tue, 27 Dec 2016 18:01:46 +0000
-
openssh (1:7.3p1-5) unstable; urgency=medium
* debian/tests/control: Add dependency on openssl, required by the PuTTY
interoperability tests.
-- Colin Watson <email address hidden> Sat, 03 Dec 2016 03:43:21 +0000
-
openssh (1:7.3p1-4) unstable; urgency=medium
* Adjust Build-Depends further to avoid considering libssl-dev >= 1.1.0~
as sufficient.
* Move build directories under debian/.
* Remove the non-upstream .gitignore file and add the relevant entries to
debian/.gitignore, in order to make the source tree more
dgit-compatible.
* Build all upstream regression test binaries using the new
"regress-binaries" target.
* Fix and enable PuTTY interoperability tests under autopkgtest.
-- Colin Watson <email address hidden> Fri, 02 Dec 2016 20:49:30 +0000
-
openssh (1:7.3p1-3) unstable; urgency=medium
* Avoid building with OpenSSL 1.1 for now (see #828475).
* Add a missing License line to debian/copyright.
* Policy version 3.9.8: no changes required.
-- Colin Watson <email address hidden> Sat, 05 Nov 2016 15:37:15 +0000
-
openssh (1:7.3p1-2) unstable; urgency=high
* Rewrite debian/copyright using copyright-format 1.0.
* CVE-2016-8858: Unregister the KEXINIT handler after message has been
received (closes: #841884).
-- Colin Watson <email address hidden> Mon, 24 Oct 2016 11:18:00 +0100
-
openssh (1:7.3p1-1) unstable; urgency=medium
* New upstream release (http://www.openssh.com/txt/release-7.3):
- SECURITY: sshd(8): Mitigate a potential denial-of-service attack
against the system's crypt(3) function via sshd(8). An attacker could
send very long passwords that would cause excessive CPU use in
crypt(3). sshd(8) now refuses to accept password authentication
requests of length greater than 1024 characters.
- SECURITY: ssh(1), sshd(8): Fix observable timing weakness in the CBC
padding oracle countermeasures. Note that CBC ciphers are disabled by
default and only included for legacy compatibility.
- SECURITY: ssh(1), sshd(8): Improve operation ordering of MAC
verification for Encrypt-then-MAC (EtM) mode transport MAC algorithms
to verify the MAC before decrypting any ciphertext. This removes the
possibility of timing differences leaking facts about the plaintext,
though no such leakage has been observed.
- ssh(1): Add a ProxyJump option and corresponding -J command-line flag
to allow simplified indirection through a one or more SSH bastions or
"jump hosts".
- ssh(1): Add an IdentityAgent option to allow specifying specific agent
sockets instead of accepting one from the environment.
- ssh(1): Allow ExitOnForwardFailure and ClearAllForwardings to be
optionally overridden when using ssh -W.
- ssh(1), sshd(8): Implement support for the IUTF8 terminal mode as per
draft-sgtatham-secsh-iutf8-00 (closes: #337041, LP: #394570).
- ssh(1), sshd(8): Add support for additional fixed Diffie-Hellman 2K,
4K and 8K groups from draft-ietf-curdle-ssh-kex-sha2-03.
- ssh-keygen(1), ssh(1), sshd(8): Support SHA256 and SHA512 RSA
signatures in certificates.
- ssh(1): Add an Include directive for ssh_config(5) files (closes:
#536031).
- ssh(1): Permit UTF-8 characters in pre-authentication banners sent
from the server.
- ssh(1), sshd(8): Reduce the syslog level of some relatively common
protocol events from LOG_CRIT.
- sshd(8): Refuse AuthenticationMethods="" in configurations and accept
AuthenticationMethods=any for the default behaviour of not requiring
multiple authentication.
- sshd(8): Remove obsolete and misleading "POSSIBLE BREAK-IN ATTEMPT!"
message when forward and reverse DNS don't match.
- ssh(1): Deduplicate LocalForward and RemoteForward entries to fix
failures when both ExitOnForwardFailure and hostname canonicalisation
are enabled.
- sshd(8): Remove fallback from moduli to obsolete "primes" file that
was deprecated in 2001 (LP: #1528251).
- sshd_config(5): Correct description of UseDNS: it affects ssh hostname
processing for authorized_keys, not known_hosts.
- sshd(8): Send ClientAliveInterval pings when a time-based RekeyLimit
is set; previously keepalive packets were not being sent.
- sshd(8): Whitelist more architectures to enable the seccomp-bpf
sandbox.
- scp(1): Respect the local user's LC_CTYPE locale (closes: #396295).
- Take character display widths into account for the progressmeter
(closes: #407088).
-- Colin Watson <email address hidden> Sun, 07 Aug 2016 22:45:26 +0100
-
openssh (1:7.2p2-8) unstable; urgency=medium
[ Colin Watson ]
* Stop enabling ssh-session-cleanup.service by default; instead, ship it
as an example and add a section to README.Debian. libpam-systemd >= 230
and "UsePAM yes" should take care of the original problem for most
systemd users (thanks, Michael Biebl; closes: #832155).
[ Martin Pitt ]
* Add debian/agent-launch: Helper script for conditionally starting the SSH
agent in the user session. Use it in ssh-agent.user-session.upstart.
* Add systemd user unit for graphical sessions that use systemd. Override
the corresponding upstart job in that case (closes: #832445).
* debian/openssh-server.if-up: Don't block on a finished reload of
openssh.service, to avoid deadlocking with restarting networking.
(closes: #832557, LP: #1584393)
-- Colin Watson <email address hidden> Fri, 29 Jul 2016 02:51:32 +0100
-
openssh (1:7.2p2-7) unstable; urgency=medium
* Don't stop the ssh-session-cleanup service on upgrade (closes: #832155).
This may cause SSH sessions to be killed on upgrade to *this* version if
you had previously installed 1:7.2p2-6. Sorry! If your session is
killed, you can recover using "dpkg --unpack" on this openssh-server
.deb, followed by "dpkg --configure -a".
* Recommend libpam-systemd from openssh-server. It's a much better
solution than the above for systemd users, but I'm wary of depending on
it in case I cause an assortment of exciting dependency problems on
upgrade for non-systemd users.
-- Colin Watson <email address hidden> Sat, 23 Jul 2016 11:46:33 +0100
-
openssh (1:7.2p2-6) unstable; urgency=medium
* debian/watch: Switch to HTTP (thanks, Nicholas Luedtke; closes:
#822997).
* Copy summary of supported SFTP protocol versions from upstream's
PROTOCOL file into the openssh-sftp-server package description (closes:
#766887).
* Set SSH_PROGRAM=/usr/bin/ssh1 when building openssh-client-ssh1 so that
scp1 works (reported by Olivier MATZ).
* Retroactively add a NEWS.Debian entry for the UseDNS change in 6.9 (see
LP #1588457).
* CVE-2016-6210: Mitigate user enumeration via covert timing channel
(closes: #831902).
* Backport upstream patch to close ControlPersist background process
stderr when not in debug mode or when logging to a file or syslog
(closes: #714526).
* Add a session cleanup script and a systemd unit file to trigger it,
which serves to terminate SSH sessions cleanly if systemd doesn't do
that itself, often because libpam-systemd is not installed (thanks,
Vivek Das Mohapatra, Tom Hutter, and others; closes: #751636).
* Stop generating DSA host keys by default (thanks, Santiago Vila; closes:
#823827).
-- Colin Watson <email address hidden> Fri, 22 Jul 2016 17:06:19 +0100
-
openssh (1:7.2p2-5) unstable; urgency=medium
* Backport upstream patch to unbreak authentication using lone certificate
keys in ssh-agent: when attempting pubkey auth with a certificate, if no
separate private key is found among the keys then try with the
certificate key itself (thanks, Paul Querna; LP: #1575961).
-- Colin Watson <email address hidden> Thu, 28 Apr 2016 01:52:01 +0100
-
openssh (1:7.2p2-4) unstable; urgency=medium
* Drop dependency on libnss-files-udeb (closes: #819686).
* Policy version 3.9.7: no changes required.
-- Colin Watson <email address hidden> Fri, 15 Apr 2016 16:40:07 +0100
-
openssh (1:7.2p2-3) unstable; urgency=high
* Change all openssh.org references to openssh.com (closes: #819213).
* CVE-2015-8325: Ignore PAM environment vars when UseLogin=yes.
-- Colin Watson <email address hidden> Wed, 13 Apr 2016 16:42:28 +0100
-
openssh (1:7.2p2-2) unstable; urgency=medium
* Fix kexgss_server to cope with DH_GRP_MIN/DH_GRP_MAX being stricter on
the server end than the client (thanks, Damien Miller; closes: #817870,
LP: #1558576).
-- Colin Watson <email address hidden> Mon, 21 Mar 2016 12:08:55 +0000
-
openssh (1:7.2p2-1) unstable; urgency=high
* New upstream release (http://www.openssh.com/txt/release-7.2p2):
- SECURITY: sshd(8): Sanitise X11 authentication credentials to avoid
xauth command injection when X11Forwarding is enabled
(http://www.openssh.com/txt/x11fwd.adv).
-- Colin Watson <email address hidden> Thu, 10 Mar 2016 13:04:29 +0000
-
openssh (1:7.2p1-1) unstable; urgency=medium
* New upstream release (http://www.openssh.com/txt/release-7.2):
- This release disables a number of legacy cryptographic algorithms by
default in ssh:
+ Several ciphers blowfish-cbc, cast128-cbc, all arcfour variants and
the rijndael-cbc aliases for AES.
+ MD5-based and truncated HMAC algorithms.
These algorithms are already disabled by default in sshd.
- ssh(1), sshd(8): Remove unfinished and unused roaming code (was
already forcibly disabled in OpenSSH 7.1p2).
- ssh(1): Eliminate fallback from untrusted X11 forwarding to trusted
forwarding when the X server disables the SECURITY extension.
- ssh(1), sshd(8): Increase the minimum modulus size supported for
diffie-hellman-group-exchange to 2048 bits.
- sshd(8): Pre-auth sandboxing is now enabled by default (previous
releases enabled it for new installations via sshd_config).
- all: Add support for RSA signatures using SHA-256/512 hash algorithms
based on draft-rsa-dsa-sha2-256-03.txt and draft-ssh-ext-info-04.txt.
- ssh(1): Add an AddKeysToAgent client option which can be set to 'yes',
'no', 'ask', or 'confirm', and defaults to 'no'. When enabled, a
private key that is used during authentication will be added to
ssh-agent if it is running (with confirmation enabled if set to
'confirm').
- sshd(8): Add a new authorized_keys option "restrict" that includes all
current and future key restrictions (no-*-forwarding, etc.). Also add
permissive versions of the existing restrictions, e.g. "no-pty" ->
"pty". This simplifies the task of setting up restricted keys and
ensures they are maximally-restricted, regardless of any permissions
we might implement in the future.
- ssh(1): Add ssh_config CertificateFile option to explicitly list
certificates.
- ssh-keygen(1): Allow ssh-keygen to change the key comment for all
supported formats (closes: #811125).
- ssh-keygen(1): Allow fingerprinting from standard input, e.g.
"ssh-keygen -lf -" (closes: #509058).
- ssh-keygen(1): Allow fingerprinting multiple public keys in a file,
e.g. "ssh-keygen -lf ~/.ssh/authorized_keys".
- sshd(8): Support "none" as an argument for sshd_config Foreground and
ChrootDirectory. Useful inside Match blocks to override a global
default.
- ssh-keygen(1): Support multiple certificates (one per line) and
reading from standard input (using "-f -") for "ssh-keygen -L"
- ssh-keyscan(1): Add "ssh-keyscan -c ..." flag to allow fetching
certificates instead of plain keys.
- ssh(1): Better handle anchored FQDNs (e.g. 'cvs.openbsd.org.') in
hostname canonicalisation - treat them as already canonical and remove
the trailing '.' before matching ssh_config.
- sftp(1): Existing destination directories should not terminate
recursive uploads (regression in OpenSSH 6.8; LP: #1553378).
* Use HTTPS for Vcs-* URLs, and link to cgit rather than gitweb.
* Restore slogin symlinks for compatibility, although they were removed
upstream.
-- Colin Watson <email address hidden> Tue, 08 Mar 2016 11:47:20 +0000
-
openssh (1:7.1p2-2) unstable; urgency=medium
* Remove protocol 1 host key generation from openssh-server.postinst
(closes: #811265).
-- Colin Watson <email address hidden> Sun, 17 Jan 2016 14:10:19 +0000
-
openssh (1:7.1p2-1) unstable; urgency=high
* New upstream release (http://www.openssh.com/txt/release-7.1p2):
- CVE-2016-0777, CVE-2016-0778: Disable experimental client-side support
for roaming, which could be tricked by a malicious server into leaking
client memory to the server, including private client user keys; this
information leak is restricted to connections to malicious or
compromised servers (closes: #810984).
- SECURITY: Fix an out of-bound read access in the packet handling code.
Reported by Ben Hawkes.
- Further use of explicit_bzero has been added in various buffer
handling code paths to guard against compilers aggressively doing
dead-store removal.
-- Colin Watson <email address hidden> Thu, 14 Jan 2016 15:28:03 +0000
-
openssh (1:7.1p1-6) unstable; urgency=medium
[ Colin Watson ]
* Remove explicit "XS-Testsuite: autopkgtest" from debian/control;
dpkg-source now figures that out automatically based on the existence of
debian/tests/control.
* Allow authenticating as root using gssapi-keyex even with
"PermitRootLogin prohibit-password" (closes: #809695).
* Shuffle PROPOSAL_KEX_ALGS mangling for GSSAPI key exchange a little
later in ssh_kex2 so that it's actually effective (closes: #809696).
[ Michael Biebl ]
* Don't call sd_notify when sshd is re-execed (closes: #809035).
-- Colin Watson <email address hidden> Mon, 04 Jan 2016 15:09:10 +0000
-
openssh (1:7.1p1-5) unstable; urgency=medium
[ Michael Biebl ]
* Add systemd readiness notification support (closes: #778913).
-- Colin Watson <email address hidden> Mon, 21 Dec 2015 22:10:07 +0000
-
openssh (1:7.1p1-4) unstable; urgency=medium
* Backport upstream patch to unbreak connections with peers that set
first_kex_follows (LP: #1526357).
-- Colin Watson <email address hidden> Tue, 15 Dec 2015 15:40:18 +0000
-
openssh (1:7.1p1-3) unstable; urgency=medium
* Drop priority of openssh-client-ssh1 to extra (closes: #807518).
* Redirect regression test input from /dev/zero, since otherwise conch
will immediately send EOF.
-- Colin Watson <email address hidden> Thu, 10 Dec 2015 15:12:10 +0000
-
openssh (1:7.1p1-2) unstable; urgency=medium
* Really enable conch interoperability tests under autopkgtest.
* Drop SSH1 keepalive patch. Now that SSH1 is disabled at compile-time,
it's been rejected upstream and there isn't much point carrying it any
more.
* Add NEWS.Debian documenting cryptographic changes in OpenSSH 7.0
(closes: #806962).
* Add an openssh-client-ssh1 binary package for people who need to connect
to outdated SSH1-only servers (closes: #807107).
* Update "Subsystem sftp" path in example sshd_config (closes: #691004,
LP: #1437005).
-- Colin Watson <email address hidden> Tue, 08 Dec 2015 15:33:08 +0000
-
openssh (1:7.1p1-1) unstable; urgency=medium
* New upstream release (http://www.openssh.com/txt/release-7.0, closes:
#785190):
- Support for the legacy SSH version 1 protocol is disabled by default
at compile time.
- Support for the 1024-bit diffie-hellman-group1-sha1 key exchange is
disabled by default at run-time. It may be re-enabled using the
instructions at http://www.openssh.com/legacy.html
- Support for ssh-dss, ssh-dss-cert-* host and user keys is disabled by
default at run-time. These may be re-enabled using the instructions
at http://www.openssh.com/legacy.html
- Support for the legacy v00 cert format has been removed.
- The default for the sshd_config(5) PermitRootLogin option has changed
from "yes" to "prohibit-password".
- PermitRootLogin=without-password/prohibit-password now bans all
interactive authentication methods, allowing only public-key,
hostbased and GSSAPI authentication (previously it permitted
keyboard-interactive and password-less authentication if those were
enabled).
- ssh_config(5): Add PubkeyAcceptedKeyTypes option to control which
public key types are available for user authentication.
- sshd_config(5): Add HostKeyAlgorithms option to control which public
key types are offered for host authentications.
- ssh(1), sshd(8): Extend Ciphers, MACs, KexAlgorithms,
HostKeyAlgorithms, PubkeyAcceptedKeyTypes and HostbasedKeyTypes
options to allow appending to the default set of algorithms instead of
replacing it. Options may now be prefixed with a '+' to append to the
default, e.g. "HostKeyAlgorithms=+ssh-dss".
- sshd_config(5): PermitRootLogin now accepts an argument of
'prohibit-password' as a less-ambiguous synonym of 'without-
password'.
- ssh(1), sshd(8): Add compatability workarounds for Cisco and more
PuTTY versions.
- Fix some omissions and errors in the PROTOCOL and PROTOCOL.mux
documentation relating to Unix domain socket forwarding.
- ssh(1): Improve the ssh(1) manual page to include a better description
of Unix domain socket forwarding (closes: #779068).
- ssh(1), ssh-agent(1): Skip uninitialised PKCS#11 slots, fixing
failures to load keys when they are present.
- ssh(1), ssh-agent(1): Do not ignore PKCS#11 hosted keys that wth empty
CKA_ID.
- sshd(8): Clarify documentation for UseDNS option.
- Check realpath(3) behaviour matches what sftp-server requires and use
a replacement if necessary.
* New upstream release (http://www.openssh.com/txt/release-7.1):
- sshd(8): OpenSSH 7.0 contained a logic error in PermitRootLogin=
prohibit-password/without-password that could, depending on
compile-time configuration, permit password authentication to root
while preventing other forms of authentication. This problem was
reported by Mantas Mikulenas.
- ssh(1), sshd(8): Add compatibility workarounds for FuTTY.
- ssh(1), sshd(8): Refine compatibility workarounds for WinSCP.
- Fix a number of memory faults (double-free, free of uninitialised
memory, etc) in ssh(1) and ssh-keygen(1). Reported by Mateusz
Kocielski.
* Change "PermitRootLogin without-password" to the new preferred spelling
of "PermitRootLogin prohibit-password" in sshd_config, and update
documentation to reflect the new upstream default.
* Enable conch interoperability tests under autopkgtest.
-- Colin Watson <email address hidden> Wed, 02 Dec 2015 20:18:35 +0000
-
openssh (1:6.9p1-3) unstable; urgency=medium
* ssh_config(5): Fix markup errors in description of GSSAPITrustDns
(closes: #799271).
* Fix dh_install and dh_fixperms overrides to work properly with an
architecture-independent-only build (closes: #806090).
* Do much less work in architecture-independent-only builds.
* Drop ConsoleKit session registration patch; it was only ever enabled for
Ubuntu, which no longer needs it (LP: #1334916, #1502045).
-- Colin Watson <email address hidden> Tue, 24 Nov 2015 22:48:53 +0000
-
openssh (1:6.9p1-2) unstable; urgency=medium
[ Colin Watson ]
* mention-ssh-keygen-on-keychange.patch: Move example ssh-keygen
invocation onto a separate line to make it easier to copy and paste
(LP: #1491532).
[ Tyler Hicks ]
* Build with audit support on Linux (closes: #797727, LP: #1478087).
-- Colin Watson <email address hidden> Thu, 10 Sep 2015 12:26:11 +0100
-
openssh (1:6.9p1-1) unstable; urgency=medium
* New upstream release (http://www.openssh.com/txt/release-6.8):
- sshd(8): UseDNS now defaults to 'no'. Configurations that match
against the client host name (via sshd_config or authorized_keys) may
need to re-enable it or convert to matching against addresses.
- Add FingerprintHash option to ssh(1) and sshd(8), and equivalent
command-line flags to the other tools to control algorithm used for
key fingerprints. The default changes from MD5 to SHA256 and format
from hex to base64.
Fingerprints now have the hash algorithm prepended. An example of the
new format: SHA256:mVPwvezndPv/ARoIadVY98vAC0g+P/5633yTC4d/wXE
Please note that visual host keys will also be different.
- ssh(1), sshd(8): Experimental host key rotation support. Add a
protocol extension for a server to inform a client of all its
available host keys after authentication has completed. The client
may record the keys in known_hosts, allowing it to upgrade to better
host key algorithms and a server to gracefully rotate its keys.
The client side of this is controlled by a UpdateHostkeys config
option (default off).
- ssh(1): Add a ssh_config HostbasedKeyType option to control which host
public key types are tried during host-based authentication.
- ssh(1), sshd(8): Fix connection-killing host key mismatch errors when
sshd offers multiple ECDSA keys of different lengths.
- ssh(1): When host name canonicalisation is enabled, try to parse host
names as addresses before looking them up for canonicalisation. Fixes
bz#2074 and avoids needless DNS lookups in some cases.
- ssh(1), ssh-keysign(8): Make ed25519 keys work for host based
authentication.
- sshd(8): SSH protocol v.1 workaround for the Meyer, et al,
Bleichenbacher Side Channel Attack. Fake up a bignum key before RSA
decryption.
- sshd(8): Remember which public keys have been used for authentication
and refuse to accept previously-used keys. This allows
AuthenticationMethods=publickey,publickey to require that users
authenticate using two _different_ public keys.
- sshd(8): add sshd_config HostbasedAcceptedKeyTypes and
PubkeyAcceptedKeyTypes options to allow sshd to control what public
key types will be accepted (closes: #481133). Currently defaults to
all.
- sshd(8): Don't count partial authentication success as a failure
against MaxAuthTries.
- ssh(1): Add RevokedHostKeys option for the client to allow text-file
or KRL-based revocation of host keys.
- ssh-keygen(1), sshd(8): Permit KRLs that revoke certificates by serial
number or key ID without scoping to a particular CA.
- ssh(1): Add a "Match canonical" criteria that allows ssh_config Match
blocks to trigger only in the second config pass.
- ssh(1): Add a -G option to ssh that causes it to parse its
configuration and dump the result to stdout, similar to "sshd -T".
- ssh(1): Allow Match criteria to be negated. E.g. "Match !host".
- ssh-keyscan(1): ssh-keyscan has been made much more robust against
servers that hang or violate the SSH protocol (closes: #241119).
- ssh(1), ssh-keygen(1): Fix regression bz#2306: Key path names were
being lost as comment fields (closes: #787776).
- ssh(1): Allow ssh_config Port options set in the second config parse
phase to be applied (they were being ignored; closes: #774369).
- ssh(1): Tweak config re-parsing with host canonicalisation - make the
second pass through the config files always run when host name
canonicalisation is enabled (and not whenever the host name changes)
- ssh(1): Fix passing of wildcard forward bind addresses when connection
multiplexing is in use.
- ssh-keygen(1): Fix broken private key conversion from non-OpenSSH
formats.
- ssh-keygen(1): Fix KRL generation bug when multiple CAs are in use.
* New upstream release (http://www.openssh.com/txt/release-6.9):
- CVE-2015-5352: ssh(1): When forwarding X11 connections with
ForwardX11Trusted=no, connections made after ForwardX11Timeout expired
could be permitted and no longer subject to XSECURITY restrictions
because of an ineffective timeout check in ssh(1) coupled with "fail
open" behaviour in the X11 server when clients attempted connections
with expired credentials (closes: #790798). This problem was reported
by Jann Horn.
- SECURITY: ssh-agent(1): Fix weakness of agent locking (ssh-add -x) to
password guessing by implementing an increasing failure delay, storing
a salted hash of the password rather than the password itself and
using a timing-safe comparison function for verifying unlock attempts.
This problem was reported by Ryan Castellucci.
- sshd(8): Support admin-specified arguments to AuthorizedKeysCommand
(closes: #740494).
- sshd(8): Add AuthorizedPrincipalsCommand that allows retrieving
authorized principals information from a subprocess rather than a
file.
- ssh(1), ssh-add(1): Support PKCS#11 devices with external PIN entry
devices.
- ssh-keygen(1): Support "ssh-keygen -lF hostname" to search known_hosts
and print key hashes rather than full keys.
- ssh-agent(1): Add -D flag to leave ssh-agent in foreground without
enabling debug mode.
- ssh(1), sshd(8): Deprecate legacy SSH2_MSG_KEX_DH_GEX_REQUEST_OLD
message and do not try to use it against some 3rd-party SSH
implementations that use it (older PuTTY, WinSCP).
- ssh(1), sshd(8): Cap DH-GEX group size at 4Kbits for Cisco
implementations as some would fail when attempting to use group sizes
>4K (closes: #740307, LP: #1287222).
- ssh(1): Fix out-of-bound read in EscapeChar configuration option
parsing.
- sshd(8): Fix application of PermitTunnel, LoginGraceTime,
AuthenticationMethods and StreamLocalBindMask options in Match blocks.
- ssh(1), sshd(8): Improve disconnection message on TCP reset.
- ssh(1): Remove failed remote forwards established by multiplexing from
the list of active forwards.
- sshd(8): Make parsing of authorized_keys "environment=" options
independent of PermitUserEnv being enabled.
- sshd(8): Fix post-auth crash with permitopen=none (closes: #778807).
- ssh(1), ssh-add(1), ssh-keygen(1): Allow new-format private keys to be
encrypted with AEAD ciphers.
- ssh(1): Allow ListenAddress, Port and AddressFamily configuration
options to appear in any order.
- sshd(8): Check for and reject missing arguments for VersionAddendum
and ForceCommand.
- ssh(1), sshd(8): Don't treat unknown certificate extensions as fatal.
- ssh-keygen(1): Make stdout and stderr output consistent.
- ssh(1): Mention missing DISPLAY environment in debug log when X11
forwarding requested.
- sshd(8): Correctly record login when UseLogin is set.
- sshd(8): Add some missing options to sshd -T output and fix output of
VersionAddendum and HostCertificate.
- Document and improve consistency of options that accept a "none"
argument: TrustedUserCAKeys, RevokedKeys, AuthorizedPrincipalsFile.
- ssh(1): Include remote username in debug output.
- sshd(8): Avoid compatibility problem with some versions of Tera Term,
which would crash when they received the hostkeys notification message
(<email address hidden>).
- sshd(8): Mention ssh-keygen -E as useful when comparing legacy MD5
host key fingerprints.
- ssh(1): Clarify pseudo-terminal request behaviour and make manual
language consistent.
- ssh(1): Document that the TERM environment variable is not subject to
SendEnv and AcceptEnv; bz#2386
- sshd(8): Format UsePAM setting when using sshd -T (closes: #767648).
- moduli(5): Update DH-GEX moduli (closes: #787037).
* There are some things I want to fix before upgrading to 7.0p1, though I
intend to do that soon. In the meantime, backport some patches, mainly
to fix security issues:
- SECURITY: sshd(8): OpenSSH 6.8 and 6.9 incorrectly set TTYs to be
world-writable. Local attackers may be able to write arbitrary
messages to logged-in users, including terminal escape sequences.
Reported by Nikolay Edigaryev.
- SECURITY: sshd(8): Fixed a privilege separation weakness related to
PAM support. Attackers who could successfully compromise the
pre-authentication process for remote code execution and who had valid
credentials on the host could impersonate other users. Reported by
Moritz Jodeit.
- SECURITY: sshd(8): Fixed a use-after-free bug related to PAM support
that was reachable by attackers who could compromise the
pre-authentication process for remote code execution (closes:
#795711). Also reported by Moritz Jodeit.
- CVE-2015-5600: sshd(8): Fix circumvention of MaxAuthTries using
keyboard-interactive authentication (closes: #793616). By specifying
a long, repeating keyboard-interactive "devices" string, an attacker
could request the same authentication method be tried thousands of
times in a single pass. The LoginGraceTime timeout in sshd(8) and any
authentication failure delays implemented by the authentication
mechanism itself were still applied. Found by Kingcope.
- Let principals-command.sh work for noexec /var/run.
* Thanks to Jakub Jelen of Red Hat for Fedora's rebased version of the
GSSAPI key exchange patch.
* Document the Debian-specific change to the default value of
ForwardX11Trusted in ssh(1) (closes: #781469).
-- Colin Watson <email address hidden> Thu, 20 Aug 2015 10:38:58 +0100
-
openssh (1:6.7p1-6) unstable; urgency=medium
[ Martin Pitt ]
* openssh-server.postinst: Quiesce "Unable to connect to Upstart" error
message from initctl if upstart is installed, but not the current init
system. (LP: #1440070)
* openssh-server.postinst: Fix version comparisons of upgrade adjustments
to not apply to fresh installs.
-- Colin Watson <email address hidden> Sun, 19 Apr 2015 14:32:43 +0100
-
openssh (1:6.7p1-5+deb8u3) jessie-security; urgency=high
* Non-maintainer upload by the Security Team.
* CVE-2016-6210: User enumeration via covert timing channel
(closes: #831902).
-- Laszlo Boszormenyi (GCS) <email address hidden> Thu, 21 Jul 2016 15:51:59 +0000
-
openssh (1:6.7p1-5+deb8u2) jessie-security; urgency=high
* Non-maintainer upload by the Security Team.
* CVE-2015-8325: Ignore PAM environment vars when UseLogin=yes
-- Salvatore Bonaccorso <email address hidden> Thu, 14 Apr 2016 09:21:40 +0200
-
openssh (1:6.7p1-5+deb8u1) jessie-security; urgency=high
* Non-maintainer upload by the Security Team.
* Disable roaming in openssh client: roaming code is vulnerable to an
information leak (CVE-2016-0777) and heap-based buffer overflow
(CVE-2016-0778).
-- Yves-Alexis Perez <email address hidden> Wed, 13 Jan 2016 22:08:52 +0100
-
openssh (1:6.7p1-5) unstable; urgency=medium
* Revert change from previous upload, which causes far more trouble than
it is worth (closes: #780797):
- Send/accept only specific known LC_* variables, rather than using a
wildcard.
* Add a NEWS.Debian entry documenting this reversion, as it is too
difficult to undo the sshd_config change automatically without
compounding the problem of (arguably) overwriting user configuration.
-- Colin Watson <email address hidden> Sun, 22 Mar 2015 23:20:56 +0000
-
openssh (1:6.7p1-4) unstable; urgency=medium
* Send/accept only specific known LC_* variables, rather than using a
wildcard (closes: #765633).
* Document interactions between ListenAddress/Port and ssh.socket in
README.Debian (closes: #764842).
* Debconf translations:
- Brazilian Portuguese (thanks, José de Figueiredo; closes: #771859).
-- Colin Watson <email address hidden> Wed, 18 Mar 2015 15:34:13 +0000
-
openssh (1:6.7p1-3) unstable; urgency=medium
* Debconf translations:
- Dutch (thanks, Frans Spiesschaert; closes: #765851).
* Assume that dpkg-statoverride exists and drop the test for an obsolete
compatibility path.
-- Colin Watson <email address hidden> Mon, 03 Nov 2014 20:29:52 +0000
-
openssh (1:6.7p1-2) unstable; urgency=medium
* debian/tests/control: Drop isolation-container, since the tests run on a
high port. They're still not guaranteed to run correctly in an schroot,
but may manage to work, so this lets the tests at least try to run on
ci.debian.net.
-- Colin Watson <email address hidden> Fri, 10 Oct 2014 10:47:19 +0100
-
openssh (1:6.7p1-1) unstable; urgency=medium
* New upstream release (http://www.openssh.com/txt/release-6.7):
- sshd(8): The default set of ciphers and MACs has been altered to
remove unsafe algorithms. In particular, CBC ciphers and arcfour* are
disabled by default. The full set of algorithms remains available if
configured explicitly via the Ciphers and MACs sshd_config options.
- ssh(1), sshd(8): Add support for Unix domain socket forwarding. A
remote TCP port may be forwarded to a local Unix domain socket and
vice versa or both ends may be a Unix domain socket (closes: #236718).
- ssh(1), ssh-keygen(1): Add support for SSHFP DNS records for ED25519
key types.
- sftp(1): Allow resumption of interrupted uploads.
- ssh(1): When rekeying, skip file/DNS lookups of the hostkey if it is
the same as the one sent during initial key exchange.
- sshd(8): Allow explicit ::1 and 127.0.0.1 forwarding bind addresses
when GatewayPorts=no; allows client to choose address family.
- sshd(8): Add a sshd_config PermitUserRC option to control whether
~/.ssh/rc is executed, mirroring the no-user-rc authorized_keys
option.
- ssh(1): Add a %C escape sequence for LocalCommand and ControlPath that
expands to a unique identifer based on a hash of the tuple of (local
host, remote user, hostname, port). Helps avoid exceeding miserly
pathname limits for Unix domain sockets in multiplexing control paths.
- sshd(8): Make the "Too many authentication failures" message include
the user, source address, port and protocol in a format similar to the
authentication success / failure messages.
- Use CLOCK_BOOTTIME in preference to CLOCK_MONOTONIC when it is
available. It considers time spent suspended, thereby ensuring
timeouts (e.g. for expiring agent keys) fire correctly (closes:
#734553).
- Use prctl() to prevent sftp-server from accessing
/proc/self/{mem,maps}.
* Restore TCP wrappers support, removed upstream in 6.7. It is true that
dropping this reduces preauth attack surface in sshd. On the other
hand, this support seems to be quite widely used, and abruptly dropping
it (from the perspective of users who don't read openssh-unix-dev) could
easily cause more serious problems in practice. It's not entirely clear
what the right long-term answer for Debian is, but it at least probably
doesn't involve dropping this feature shortly before a freeze.
* Replace patch to disable OpenSSL version check with an updated version
of Kurt Roeckx's patch from #732940 to just avoid checking the status
field.
* Build-depend on a new enough dpkg-dev for dpkg-buildflags, rather than
simply a new enough dpkg.
* Simplify debian/rules using /usr/share/dpkg/buildflags.mk.
* Use Package-Type rather than XC-Package-Type, now that it is an official
field.
* Run a subset of the upstream regression test suite at package build
time, and the rest of it under autopkgtest.
-- Colin Watson <email address hidden> Thu, 09 Oct 2014 14:05:56 +0100
-
openssh (1:6.6p1-8) unstable; urgency=medium
* Make the if-up hook use "reload" rather than "restart" if the system was
booted using systemd (closes: #756547).
* Show fingerprints of new keys after creating them in the postinst
(closes: #762128).
* Policy version 3.9.6: no changes required.
* Don't link /usr/share/doc/ssh to openssh-client, as this is not safe
between Architecture: all and Architecture: any binary packages (closes:
#763375).
-- Colin Watson <email address hidden> Fri, 03 Oct 2014 12:23:57 +0100
-
openssh (1:6.6p1-7) unstable; urgency=medium
* Make sure that DEB_HOST_ARCH is set, even when invoking debian/rules
directly.
* Use dh-exec to simplify override_dh_install target.
* Remove several unnecessary entries in debian/*.dirs.
* Pass noupdate to the second call to pam_motd, not the first (thanks, Ken
T Takusagawa; closes: #757059).
* Debconf translations:
- Turkish (thanks, Mert Dirik; closes: #756757).
-- Colin Watson <email address hidden> Tue, 05 Aug 2014 09:10:04 +0100
-
openssh (1:6.6p1-6) unstable; urgency=medium
* Upgrade to debhelper v9.
* Only use pam_keyinit on Linux architectures (closes: #747245).
* Make get_config_option more robust against trailing whitespace (thanks,
LaMont Jones).
* Debconf translations:
- Czech (thanks, Michal Šimůnek; closes: #751419).
-- Colin Watson <email address hidden> Sat, 28 Jun 2014 14:50:04 +0100
-
openssh (1:6.6p1-5) unstable; urgency=medium
* Force ssh-agent Upstart job to use sh syntax regardless of the user's
shell (thanks, Steffen Stempel; LP: #1312928).
-- Colin Watson <email address hidden> Thu, 01 May 2014 16:27:53 +0100
-
openssh (1:6.6p1-4) unstable; urgency=medium
* Debconf translations:
- Spanish (thanks, Matías Bellone; closes: #744867).
* Apply upstream-recommended patch to fix bignum encoding for
<email address hidden>, fixing occasional key exchange failures.
-- Colin Watson <email address hidden> Mon, 21 Apr 2014 21:29:53 +0100
-
openssh (1:6.6p1-3) unstable; urgency=medium
* Debconf translations:
- French (thanks, Étienne Gilli; closes: #743242).
* Never signal the service supervisor with SIGSTOP more than once, to
prevent a hang on re-exec (thanks, Robie Basak; LP: #1306877).
-- Colin Watson <email address hidden> Mon, 14 Apr 2014 12:11:50 +0100
-
openssh (1:6.6p1-2) unstable; urgency=medium
* If no root password is set, then switch to "PermitRootLogin
without-password" without asking (LP: #1300127).
-- Colin Watson <email address hidden> Mon, 31 Mar 2014 12:20:46 +0100
-
openssh (1:6.6p1-1) unstable; urgency=medium
[ Colin Watson ]
* Apply various warning-suppression and regression-test fixes to
gssapi.patch from Damien Miller.
* New upstream release (http://www.openssh.com/txt/release-6.6,
LP: #1298280):
- CVE-2014-2532: sshd(8): when using environment passing with an
sshd_config(5) AcceptEnv pattern with a wildcard, OpenSSH prior to 6.6
could be tricked into accepting any environment variable that contains
the characters before the wildcard character.
* Re-enable btmp logging, as its permissions were fixed a long time ago in
response to #370050 (closes: #341883).
* Change to "PermitRootLogin without-password" for new installations, and
ask a debconf question when upgrading systems with "PermitRootLogin yes"
from previous versions (closes: #298138).
* Debconf translations:
- Danish (thanks, Joe Hansen).
- Portuguese (thanks, Américo Monteiro).
- Russian (thanks, Yuri Kozlov; closes: #742308).
- Swedish (thanks, Andreas Rönnquist).
- Japanese (thanks, victory).
- German (thanks, Stephan Beck; closes: #742541).
- Italian (thanks, Beatrice Torracca).
* Don't start ssh-agent from the Upstart user session job if something
like Xsession has already done so (based on work by Bruno Vasselle;
LP: #1244736).
[ Matthew Vernon ]
* CVE-2014-2653: Fix failure to check SSHFP records if server presents a
certificate (bug reported by me, patch by upstream's Damien Miller;
thanks also to Mark Wooding for his help in fixing this) (Closes:
#742513)
-- Colin Watson <email address hidden> Fri, 28 Mar 2014 18:04:41 +0000
-
openssh (1:6.5p1-6) unstable; urgency=medium
* Fix Breaks/Replaces versions of openssh-sftp-server on openssh-server
(thanks, Axel Beckert).
-- Colin Watson <email address hidden> Thu, 06 Mar 2014 16:18:44 +0000
-
openssh (1:6.5p1-5) unstable; urgency=medium
[ Colin Watson ]
* Add Alias=sshd.service to systemd ssh.service file, to match "Provides:
sshd" in the sysvinit script (thanks, Michael Biebl).
* Add Before=ssh.service to systemd ssh.socket file, since otherwise
nothing guarantees that ssh.service has stopped before ssh.socket starts
(thanks, Uoti Urpala).
[ Axel Beckert ]
* Split sftp-server into its own package to allow it to also be used by
other SSH server implementations like dropbear (closes: #504290).
-- Colin Watson <email address hidden> Wed, 05 Mar 2014 13:53:08 +0000
-
openssh (1:6.5p1-4) unstable; urgency=medium
* Configure --without-hardening on hppa, to work around
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60155 (closes: #738798).
* Amend "Running sshd from inittab" instructions in README.Debian to
recommend 'update-rc.d ssh disable', rather than manual removal of rc*.d
symlinks that won't work with dependency-based sysv-rc.
* Remove code related to non-dependency-based sysv-rc ordering, since that
is no longer supported.
* Apply patch from https://bugzilla.mindrot.org/show_bug.cgi?id=2200 to
fix getsockname errors when using "ssh -W" (closes: #738693).
-- Colin Watson <email address hidden> Sat, 15 Feb 2014 02:19:36 +0000
-
openssh (1:6.5p1-3) unstable; urgency=medium
* Clarify socket activation mode in README.Debian, as suggested by Uoti
Urpala.
* Stop claiming that "Protocol 2" is a Debian-specific default; this has
been upstream's default since 5.4p1.
* Avoid stdout noise from which(1) on purge of openssh-client.
* Fix sysvinit->systemd transition code to cope with still-running
sysvinit jobs being considered active by systemd (thanks, Uoti Urpala
and Michael Biebl).
* Bump guard version for sysvinit->systemd transition to 1:6.5p1-3; we may
have got it wrong before, and it's fairly harmless to repeat it.
* Remove tests for whether /dev/null is a character device from the
Upstart job and the systemd service files; it's there to avoid a
confusing failure mode in daemon(), but with modern init systems we use
the -D option to suppress daemonisation anyway.
* Refer to /usr/share/common-licenses/GPL-2 in debian/copyright (for the
Debian patch) rather than plain GPL.
* Drop some very old Conflicts and Replaces (ssh (<< 1:3.8.1p1-9),
rsh-client (<< 0.16.1-1), ssh-krb5 (<< 1:4.3p2-7), ssh-nonfree (<< 2),
and openssh-client (<< 1:3.8.1p1-11)). These all relate to pre-etch
versions, for which we no longer have maintainer script code, and per
policy they would have to become Breaks nowadays anyway.
* Policy version 3.9.5.
* Drop unnecessary -1 in zlib1g Build-Depends version.
* Tweak dh_systemd_enable invocations to avoid lots of error noise.
-- Colin Watson <email address hidden> Wed, 12 Feb 2014 13:10:08 +0000
-
openssh (1:6.5p1-2) unstable; urgency=medium
* Only enable ssh.service for systemd, not both ssh.service and
ssh.socket. Thanks to Michael Biebl for spotting this.
* Backport upstream patch to unbreak case-sensitive matching of ssh_config
(closes: #738619).
-- Colin Watson <email address hidden> Tue, 11 Feb 2014 11:28:35 +0000
-
openssh (1:6.5p1-1) unstable; urgency=medium
* New upstream release (http://www.openssh.com/txt/release-6.5,
LP: #1275068):
- ssh(1): Add support for client-side hostname canonicalisation using a
set of DNS suffixes and rules in ssh_config(5). This allows
unqualified names to be canonicalised to fully-qualified domain names
to eliminate ambiguity when looking up keys in known_hosts or checking
host certificate names (closes: #115286).
* Switch to git; adjust Vcs-* fields.
* Convert to git-dpm, and drop source package documentation associated
with the old bzr/quilt patch handling workflow.
* Drop ssh-vulnkey and the associated ssh/ssh-add/sshd integration code,
leaving only basic configuration file compatibility, since it has been
nearly six years since the original vulnerability and this code is not
likely to be of much value any more (closes: #481853, #570651). See
https://lists.debian.org/debian-devel/2013/09/msg00240.html for my full
reasoning.
* Add OpenPGP signature checking configuration to watch file (thanks,
Daniel Kahn Gillmor; closes: #732441).
* Add the pam_keyinit session module, to create a new session keyring on
login (closes: #734816).
* Incorporate default path changes from shadow 1:4.0.18.1-8, removing
/usr/bin/X11 (closes: #644521).
* Generate ED25519 host keys on fresh installations. Upgraders who wish
to add such host keys should manually add 'HostKey
/etc/ssh/ssh_host_ed25519_key' to /etc/ssh/sshd_config and run
'ssh-keygen -q -f /etc/ssh/ssh_host_ed25519_key -N "" -t ed25519'.
* Drop long-obsolete "SSH now uses protocol 2 by default" section from
README.Debian.
* Add systemd support (thanks, Sven Joachim; closes: #676830).
-- Colin Watson <email address hidden> Mon, 10 Feb 2014 14:58:26 +0000
-
openssh (1:6.4p1-2) unstable; urgency=high
* Increase ServerKeyBits value in package-generated sshd_config to 1024
(closes: #727622, LP: #1244272).
* Restore patch to disable OpenSSL version check (closes: #732940).
-- Colin Watson <email address hidden> Mon, 23 Dec 2013 10:44:04 +0000
-
openssh (1:6.4p1-1.1) unstable; urgency=medium
* Non-maintainer upload.
* Adjust check for openssl version (Closes: #732940)
-- Kurt Roeckx <email address hidden> Mon, 23 Dec 2013 10:33:59 +0100
-
openssh (1:6.4p1-1) unstable; urgency=high
* New upstream release. Important changes:
- 6.3/6.3p1 (http://www.openssh.com/txt/release-6.3):
+ sftp(1): add support for resuming partial downloads using the
"reget" command and on the sftp commandline or on the "get"
commandline using the "-a" (append) option (closes: #158590).
+ ssh(1): add an "IgnoreUnknown" configuration option to selectively
suppress errors arising from unknown configuration directives
(closes: #436052).
+ sftp(1): update progressmeter when data is acknowledged, not when
it's sent (partially addresses #708372).
+ ssh(1): do not fatally exit when attempting to cleanup multiplexing-
created channels that are incompletely opened (closes: #651357).
- 6.4/6.4p1 (http://www.openssh.com/txt/release-6.4):
+ CVE-2013-4548: sshd(8): fix a memory corruption problem triggered
during rekeying when an AES-GCM cipher is selected (closes:
#729029). Full details of the vulnerability are available at:
http://www.openssh.com/txt/gcmrekey.adv
* When running under Upstart, only consider the daemon started once it is
ready to accept connections (by raising SIGSTOP at that point and using
"expect stop").
-- Colin Watson <email address hidden> Sat, 09 Nov 2013 18:24:16 +0000
-
openssh (1:6.2p2-6) unstable; urgency=low
* Update config.guess and config.sub automatically at build time.
dh_autoreconf does not take care of that by default because openssh does
not use automake.
-- Colin Watson <email address hidden> Tue, 02 Jul 2013 22:54:49 +0100
-
openssh (1:6.2p2-5) unstable; urgency=low
[ Colin Watson ]
* Document consequences of ssh-agent being setgid in ssh-agent(1); see
#711623.
* Use 'set -e' rather than '#! /bin/sh -e' in maintainer scripts and
ssh-argv0.
[ Yolanda Robla ]
* debian/rules: Include real distribution in SSH_EXTRAVERSION instead of
hardcoding Debian (LP: #1195342).
-- Colin Watson <email address hidden> Thu, 27 Jun 2013 15:24:14 +0100
-
openssh (1:6.2p2-4) unstable; urgency=low
* Fix non-portable shell in ssh-copy-id (closes: #711162).
* Rebuild against debhelper 9.20130604 with fixed dependencies for
invoke-rc.d and Upstart jobs (closes: #711159, #711364).
* Set SELinux context on private host keys as well as public host keys
(closes: #687436).
-- Colin Watson <email address hidden> Thu, 06 Jun 2013 17:06:31 +0100
-
openssh (1:6.2p2-3) unstable; urgency=low
* If the running init daemon is Upstart, then, on the first upgrade to
this version, check whether sysvinit is still managing sshd; if so,
manually stop it so that it can be restarted under upstart. We do this
near the end of the postinst, so it shouldn't result in any appreciable
extra window where sshd is not running during upgrade.
-- Colin Watson <email address hidden> Wed, 22 May 2013 17:42:10 +0100
-
openssh (1:6.2p2-1) unstable; urgency=low
* New upstream release (http://www.openssh.com/txt/release-6.2p2):
- Only warn for missing identity files that were explicitly specified
(closes: #708275).
- Fix bug in contributed contrib/ssh-copy-id script that could result in
"rm *" being called on mktemp failure (closes: #708419).
-- Colin Watson <email address hidden> Thu, 16 May 2013 14:05:06 +0100
-
openssh (1:6.2p1-3) unstable; urgency=low
* Renumber Debian-specific additions to enum monitor_reqtype so that they
fit within a single byte (thanks, Jason Conti; LP: #1179202).
-- Colin Watson <email address hidden> Mon, 13 May 2013 10:56:04 +0100
-
openssh (1:6.2p1-2) unstable; urgency=low
* Fix build failure on Ubuntu:
- Include openbsd-compat/sys-queue.h from consolekit.c.
- Fix consolekit mismerges in monitor.c and monitor_wrap.c.
-- Colin Watson <email address hidden> Thu, 09 May 2013 09:45:57 +0100
-
openssh (1:6.2p1-1) unstable; urgency=low
* New upstream release (http://www.openssh.com/txt/release-6.2).
- Add support for multiple required authentication in SSH protocol 2 via
an AuthenticationMethods option (closes: #195716).
- Fix Sophie Germain formula in moduli(5) (closes: #698612).
- Update ssh-copy-id to Phil Hands' greatly revised version (closes:
#99785, #322228, #620428; LP: #518883, #835901, #1074798).
* Use dh-autoreconf.
-- Colin Watson <email address hidden> Tue, 07 May 2013 11:48:16 +0100
-
openssh (1:6.0p1-4+deb7u2) stable; urgency=medium
* Restore patch to disable OpenSSL version check (closes: #749472).
-- Colin Watson <email address hidden> Sat, 28 Jun 2014 14:27:46 +0100
-
openssh (1:6.0p1-4+deb7u1) stable-security; urgency=high
* CVE-2014-2532: Disallow invalid characters in environment variable names
to prevent bypassing AcceptEnv wildcard restrictions.
* CVE-2014-2653: Attempt SSHFP lookup even if server presents a
certificate (closes: #742513).
-- Colin Watson <email address hidden> Thu, 03 Apr 2014 00:05:17 +0100
-
openssh (1:6.0p1-4) unstable; urgency=low
* CVE-2010-5107: Improve DoS resistance by changing default of MaxStartups
to 10:30:100 (closes: #700102).
-- Colin Watson <email address hidden> Fri, 08 Feb 2013 21:27:00 +0000
-
openssh (1:6.0p1-3) unstable; urgency=low
* debconf template translations:
- Add Indonesian (thanks, Andika Triwidada; closes: #681670).
* Call restorecon on copied ~/.ssh/authorized_keys if possible, since some
SELinux policies require this (closes: #658675).
* Add ncurses-term to openssh-server's Recommends, since it's often needed
to support unusual terminal emulators on clients (closes: #675362).
-- Colin Watson <email address hidden> Fri, 24 Aug 2012 06:55:36 +0100
-
openssh (1:6.0p1-2) unstable; urgency=low
* Tighten libssl1.0.0 and libcrypto1.0.0-udeb dependencies to the current
"fix" version at build time (closes: #678661).
-- Colin Watson <email address hidden> Sun, 24 Jun 2012 12:16:06 +0100
-
openssh (1:6.0p1-1) unstable; urgency=low
[ Roger Leigh ]
* Display dynamic part of MOTD from /run/motd.dynamic, if it exists
(closes: #669699).
[ Colin Watson ]
* Update OpenSSH FAQ to revision 1.113, fixing missing line break (closes:
#669667).
* New upstream release (closes: #671010,
http://www.openssh.org/txt/release-6.0).
- Fix IPQoS not being set on non-mapped v4-in-v6 addressed connections
(closes: #643312, #650512, #671075).
- Add a new privilege separation sandbox implementation for Linux's new
seccomp sandbox, automatically enabled on platforms that support it.
(Note: privilege separation sandboxing is still experimental.)
* Fix a bashism in configure's seccomp_filter check.
* Add a sandbox fallback mechanism, so that behaviour on Linux depends on
whether the running system's kernel has seccomp_filter support, not the
build system's kernel (forwarded upstream as
https://bugzilla.mindrot.org/show_bug.cgi?id=2011).
-- Colin Watson <email address hidden> Sat, 26 May 2012 13:48:14 +0100
-
openssh (1:5.9p1-5) unstable; urgency=low
* Use dpkg-buildflags, including for hardening support; drop use of
hardening-includes.
* Fix cross-building:
- Allow using a cross-architecture pkg-config.
- Pass default LDFLAGS to contrib/Makefile.
- Allow dh_strip to strip gnome-ssh-askpass, rather than calling
'install -s'.
-- Colin Watson <email address hidden> Mon, 02 Apr 2012 11:20:33 +0100
-
openssh (1:5.9p1-4) unstable; urgency=low
* Disable OpenSSL version check again, as its SONAME is sufficient
nowadays (closes: #664383).
-- Colin Watson <email address hidden> Mon, 19 Mar 2012 11:06:30 +0000
-
openssh (1:5.9p1-3) unstable; urgency=low
* debconf template translations:
- Update Polish (thanks, Michał Kułach; closes: #659829).
* Ignore errors writing to console in init script (closes: #546743).
* Move ssh-krb5 to Section: oldlibs.
-- Colin Watson <email address hidden> Fri, 24 Feb 2012 08:56:18 +0000
-
openssh (1:5.9p1-2) unstable; urgency=low
* Mark openssh-client and openssh-server as Multi-Arch: foreign.
-- Colin Watson <email address hidden> Wed, 09 Nov 2011 02:06:48 +0000
-
openssh (1:5.9p1-1) unstable; urgency=low
* New upstream release (http://www.openssh.org/txt/release-5.9).
- Introduce sandboxing of the pre-auth privsep child using an optional
sshd_config(5) "UsePrivilegeSeparation=sandbox" mode that enables
mandatory restrictions on the syscalls the privsep child can perform.
- Add new SHA256-based HMAC transport integrity modes from
http://www.ietf.org/id/draft-dbider-sha2-mac-for-ssh-02.txt.
- The pre-authentication sshd(8) privilege separation slave process now
logs via a socket shared with the master process, avoiding the need to
maintain /dev/log inside the chroot (closes: #75043, #429243,
#599240).
- ssh(1) now warns when a server refuses X11 forwarding (closes:
#504757).
- sshd_config(5)'s AuthorizedKeysFile now accepts multiple paths,
separated by whitespace (closes: #76312). The authorized_keys2
fallback is deprecated but documented (closes: #560156).
- ssh(1) and sshd(8): set IPv6 traffic class from IPQoS, as well as IPv4
ToS/DSCP (closes: #498297).
- ssh-add(1) now accepts keys piped from standard input. E.g. "ssh-add
- < /path/to/key" (closes: #229124).
- Clean up lost-passphrase text in ssh-keygen(1) (closes: #444691).
- Say "required" rather than "recommended" in unprotected-private-key
warning (LP: #663455).
* Update OpenSSH FAQ to revision 1.112.
-- Colin Watson <email address hidden> Wed, 07 Sep 2011 23:46:00 +0100
-
openssh (1:5.8p1-7) unstable; urgency=low
* Only recommend ssh-import-id when built on Ubuntu (closes: #635887). * Use 'dpkg-vendor --derives-from Ubuntu' to detect Ubuntu systems rather than 'lsb_release -is' so that Ubuntu derivatives behave the same way as Ubuntu itself. -- Colin Watson <email address hidden> Fri, 29 Jul 2011 14:27:52 +0100
-
openssh (1:5.8p1-6) unstable; urgency=low
* openssh-client and openssh-server Suggests: monkeysphere. * Quieten logs when multiple from= restrictions are used in different authorized_keys lines for the same key; it's still not ideal, but at least you'll only get one log entry per key (closes: #630606). * Merge from Ubuntu (Dustin Kirkland): - openssh-server Recommends: ssh-import-id (no-op in Debian since that package doesn't exist there, but this reduces the Ubuntu delta). -- Colin Watson <email address hidden> Thu, 28 Jul 2011 17:10:18 +0100
-
openssh (1:5.8p1-5) unstable; urgency=low
* Drop openssh-server's dependency on openssh-blacklist to a recommendation (closes: #622604). * Update Vcs-* fields and README.source for Alioth changes. * Backport from upstream: - Make hostbased auth with ECDSA keys work correctly (closes: #633368). -- Colin Watson <email address hidden> Sun, 24 Jul 2011 11:06:47 +0100
-
openssh (1:5.8p1-4) unstable; urgency=low
* Drop hardcoded dependencies on libssl0.9.8 and libcrypto0.9.8-udeb, since the required minimum versions are rather old now anyway and openssl has bumped its SONAME (thanks, Julien Cristau; closes: #620828). * Remove unreachable code from openssh-server.postinst. -- Colin Watson <email address hidden> Mon, 04 Apr 2011 15:56:18 +0100
-
openssh (1:5.8p1-3) unstable; urgency=low
* Correct ssh-keygen instruction in the changelog for 1:5.7p1-1 (thanks, Joel Stanley). * Allow ssh-add to read from FIFOs (thanks, Daniel Kahn Gillmor; closes: #614897). -- Colin Watson <email address hidden> Fri, 18 Mar 2011 16:42:42 +0000
-
openssh (1:5.8p1-2) unstable; urgency=low
* Upload to unstable. -- Colin Watson <email address hidden> Tue, 08 Feb 2011 10:59:17 +0000
-
openssh (1:5.5p1-6) unstable; urgency=low
* Touch /var/run/sshd/.placeholder in the preinst so that /var/run/sshd, which is intentionally no longer shipped in the openssh-server package due to /var/run often being a temporary directory, is not removed on upgrade (closes: #575582). -- Colin Watson <email address hidden> Sun, 26 Dec 2010 18:09:29 +0000
-
openssh (1:5.5p1-5) unstable; urgency=low
* Use an architecture wildcard for libselinux1-dev (closes: #591740).
* debconf template translations:
- Update Danish (thanks, Joe Hansen; closes: #592800).
-- Colin Watson <email address hidden> Mon, 23 Aug 2010 22:59:03 +0100
-
openssh (1:5.5p1-4) unstable; urgency=low
[ Sebastian Andrzej Siewior ]
* Add powerpcspe to architecture list for libselinux1-dev build-dependency
(closes: #579843).
[ Colin Watson ]
* Allow ~/.ssh/authorized_keys and other secure files to be
group-writable, provided that the group in question contains only the
file's owner; this extends a patch previously applied to ~/.ssh/config
(closes: #581919).
* Check primary group memberships as well as supplementary group
memberships, and only allow group-writability by groups with exactly one
member, as zero-member groups are typically used by setgid binaries
rather than being user-private groups (closes: #581697).
-- Colin Watson <email address hidden> Sat, 22 May 2010 23:37:20 +0100
-
openssh (1:5.5p1-3) unstable; urgency=low
* Discard error messages while checking whether rsh, rlogin, and rcp
alternatives exist (closes: #579285).
* Drop IDEA key check; I don't think it works properly any more due to
textual changes in error output, it's only relevant for direct upgrades
from truly ancient versions, and it breaks upgrades if
/etc/ssh/ssh_host_key can't be loaded (closes: #579570).
-- Colin Watson <email address hidden> Wed, 28 Apr 2010 22:12:47 +0100
-
openssh (1:5.4p1-2) unstable; urgency=low
* Borrow patch from Fedora to add DNSSEC support: if glibc 2.11 is
installed, the host key is published in an SSHFP RR secured with DNSSEC,
and VerifyHostKeyDNS=yes, then ssh will no longer prompt for host key
verification (closes: #572049).
* Convert to dh(1), and use dh_installdocs --link-doc.
* Drop lpia support, since Ubuntu no longer supports this architecture.
* Use dh_install more effectively.
* Add a NEWS.Debian entry about changes in smartcard support relative to
previous unofficial builds (closes: #231472).
-- Colin Watson <email address hidden> Sat, 10 Apr 2010 01:08:59 +0100
-
openssh (1:5.4p1-1) unstable; urgency=low
* New upstream release (LP: #535029).
- After a transition period of about 10 years, this release disables SSH
protocol 1 by default. Clients and servers that need to use the
legacy protocol must explicitly enable it in ssh_config / sshd_config
or on the command-line.
- Remove the libsectok/OpenSC-based smartcard code and add support for
PKCS#11 tokens. This support is enabled by default in the Debian
packaging, since it now doesn't involve additional library
dependencies (closes: #231472, LP: #16918).
- Add support for certificate authentication of users and hosts using a
new, minimal OpenSSH certificate format (closes: #482806).
- Added a 'netcat mode' to ssh(1): "ssh -W host:port ...".
- Add the ability to revoke keys in sshd(8) and ssh(1). (For the Debian
package, this overlaps with the key blacklisting facility added in
openssh 1:4.7p1-9, but with different file formats and slightly
different scopes; for the moment, I've roughly merged the two.)
- Various multiplexing improvements, including support for requesting
port-forwardings via the multiplex protocol (closes: #360151).
- Allow setting an explicit umask on the sftp-server(8) commandline to
override whatever default the user has (closes: #496843).
- Many sftp client improvements, including tab-completion, more options,
and recursive transfer support for get/put (LP: #33378). The old
mget/mput commands never worked properly and have been removed
(closes: #270399, #428082).
- Do not prompt for a passphrase if we fail to open a keyfile, and log
the reason why the open failed to debug (closes: #431538).
- Prevent sftp from crashing when given a "-" without a command. Also,
allow whitespace to follow a "-" (closes: #531561).
* Fix 'debian/rules quilt-setup' to avoid writing .orig files if some
patches apply with offsets.
* Include debian/ssh-askpass-gnome.png in the Debian tarball now that
we're using a source format that permits this, rather than messing
around with uudecode.
* Drop compatibility with the old gssapi mechanism used in ssh-krb5 <<
3.8.1p1-1. Simon Wilkinson refused this patch since the old gssapi
mechanism was removed due to a serious security hole, and since these
versions of ssh-krb5 are no longer security-supported by Debian I don't
think there's any point keeping client compatibility for them.
* Fix substitution of ETC_PAM_D_SSH, following the rename in 1:4.7p1-4.
* Hardcode the location of xauth to /usr/bin/xauth rather than
/usr/bin/X11/xauth (thanks, Aron Griffis; closes: #575725, LP: #8440).
xauth no longer depends on x11-common, so we're no longer guaranteed to
have the /usr/bin/X11 symlink available. I was taking advantage of the
/usr/bin/X11 symlink to smooth X's move to /usr/bin, but this is far
enough in the past now that it's probably safe to just use /usr/bin.
* Remove SSHD_OOM_ADJUST configuration. sshd now unconditionally makes
itself non-OOM-killable, and doesn't require configuration to avoid log
spam in virtualisation containers (closes: #555625).
* Drop Debian-specific removal of OpenSSL version check. Upstream ignores
the two patchlevel nybbles now, which is sufficient to address the
original reason this change was introduced, and it appears that any
change in the major/minor/fix nybbles would involve a new libssl package
name. (We'd still lose if the status nybble were ever changed, but that
would mean somebody had packaged a development/beta version rather than
a proper release, which doesn't appear to be normal practice.)
* Drop most of our "LogLevel SILENT" (-qq) patch. This was originally
introduced to match the behaviour of non-free SSH, in which -q does not
suppress fatal errors, but matching the behaviour of OpenSSH upstream is
much more important nowadays. We no longer document that -q does not
suppress fatal errors (closes: #280609). Migrate "LogLevel SILENT" to
"LogLevel QUIET" in sshd_config on upgrade.
* Policy version 3.8.4:
- Add a Homepage field.
-- Colin Watson <email address hidden> Tue, 06 Apr 2010 22:38:31 +0100
-
openssh (1:5.3p1-3) unstable; urgency=low
* Convert to source format 3.0 (quilt).
* Update README.source to match, and add a 'quilt-setup' target to
debian/rules for the benefit of those checking out the package from
revision control.
* All patches are now maintained separately and tagged according to DEP-3.
* Add GSSAPIStoreCredentialsOnRekey to 'sshd -T' configuration dump.
* Remove documentation of building for Debian 3.0 in README.Debian.
Support for this was removed in 1:4.7p1-2.
* Remove obsolete header from README.Debian dating from when people
expected non-free SSH.
* Update copyright years for GSSAPI patch.
-- Colin Watson <email address hidden> Sun, 28 Feb 2010 01:35:53 +0000
-
openssh (1:5.3p1-2) unstable; urgency=low
* Link with -Wl,--as-needed (closes: #560155).
* Install upstream sshd_config as an example (closes: #415008).
* Use dh_lintian.
* Honour DEB_BUILD_OPTIONS=nocheck.
-- Colin Watson <email address hidden> Mon, 22 Feb 2010 12:43:24 +0000
-
openssh (1:5.3p1-1) unstable; urgency=low
* New upstream release.
* Update to GSSAPI patch from
http://www.sxw.org.uk/computing/patches/openssh-5.3p1-gsskex-all-20100124.patch.
* Backport from upstream:
- Do not fall back to adding keys without contraints (ssh-add -c / -t
...) when the agent refuses the constrained add request. This was a
useful migration measure back in 2002 when constraints were new, but
just adds risk now (LP: #209447).
* Drop change from 1:3.8p1-3 to avoid setresuid() and setresgid() system
calls. This only applied to Linux 2.2, which it's no longer feasible to
run anyway (see 1:5.2p1-2 changelog).
-- Colin Watson <email address hidden> Tue, 26 Jan 2010 11:55:29 +0000
-
openssh (1:5.2p1-2) unstable; urgency=low
[ Colin Watson ]
* Backport from upstream:
- After sshd receives a SIGHUP, ignore subsequent HUPs while sshd
re-execs itself. Prevents two HUPs in quick succession from resulting
in sshd dying (LP: #497781).
- Output a debug if we can't open an existing keyfile (LP: #505301).
* Use host compiler for ssh-askpass-gnome when cross-compiling.
* Don't run tests when cross-compiling.
* Drop change from 1:3.6.1p2-5 to disable cmsg_type check for file
descriptor passing when running on Linux 2.0. The previous stable
release of Debian dropped support for Linux 2.4, let alone 2.0, so this
very likely has no remaining users depending on it.
[ Kees Cook ]
* Implement DebianBanner server configuration flag that can be set to "no"
to allow sshd to run without the Debian-specific extra version in the
initial protocol handshake (closes: #562048).
-- Colin Watson <email address hidden> Sat, 16 Jan 2010 01:28:58 +0000
-
openssh (1:5.2p1-1) unstable; urgency=low
* New upstream release (closes: #536182). Yes, I know 5.3p1 has been out
for a while, but there's no GSSAPI patch available for it yet.
- Change the default cipher order to prefer the AES CTR modes and the
revised "arcfour256" mode to CBC mode ciphers that are susceptible to
CPNI-957037 "Plaintext Recovery Attack Against SSH".
- Add countermeasures to mitigate CPNI-957037-style attacks against the
SSH protocol's use of CBC-mode ciphers. Upon detection of an invalid
packet length or Message Authentication Code, ssh/sshd will continue
reading up to the maximum supported packet length rather than
immediately terminating the connection. This eliminates most of the
known differences in behaviour that leaked information about the
plaintext of injected data which formed the basis of this attack
(closes: #506115, LP: #379329).
- ForceCommand directive now accepts commandline arguments for the
internal-sftp server (closes: #524423, LP: #362511).
- Add AllowAgentForwarding to available Match keywords list (closes:
#540623).
- Make ssh(1) send the correct channel number for
SSH2_MSG_CHANNEL_SUCCESS and SSH2_MSG_CHANNEL_FAILURE messages to
avoid triggering 'Non-public channel' error messages on sshd(8) in
openssh-5.1.
- Avoid printing 'Non-public channel' warnings in sshd(8), since the
ssh(1) has sent incorrect channel numbers since ~2004 (this reverts a
behaviour introduced in openssh-5.1; closes: #496017).
- Disable nonfunctional ssh(1) ~C escape handler in multiplex slave
connections (closes: #507541).
- Fix "whitepsace" typo in ssh_config(5) (closes: #514313, LP: #303835).
* Update to GSSAPI patch from
http://www.sxw.org.uk/computing/patches/openssh-5.2p1-gsskex-all-20090726.patch,
including cascading credentials support (LP: #416958).
* Use x11.pc when compiling/linking gnome-ssh-askpass2 (closes: #555951).
* Moved to bzr.debian.org; add Vcs-Bzr and Vcs-Browser control fields.
* Add debian/README.source with instructions on bzr handling.
* Make ChrootDirectory work with SELinux (thanks, Russell Coker; closes:
#556644).
* Initialise sc to NULL in ssh_selinux_getctxbyname (thanks, Václav Ovsík;
closes: #498684).
* Don't duplicate backslashes when displaying server banner (thanks,
Michał Górny; closes: #505378, LP: #425346).
* Use hardening-includes for hardening logic (thanks, Kees Cook; closes:
#561887).
* Update OpenSSH FAQ to revision 1.110.
* Remove ssh/new_config, only needed for direct upgrades from potato which
are no longer particularly feasible anyway (closes: #420682).
* Cope with insserv reordering of init script links.
* Remove init script stop link in rc1, as killprocs handles it already.
* Adjust short descriptions to avoid relying on previous experience with
rsh, based on suggestions from Reuben Thomas (closes: #512198).
* Remove manual page references to login.conf, which aren't applicable on
non-BSD systems (closes: #154434).
* Remove/adjust manual page references to BSD-specific /etc/rc (closes:
#513417).
* Refer to sshd_config(5) rather than sshd(8) in postinst-written
/etc/ssh/sshd_config, and add UsePAM commentary from upstream-shipped
configuration file (closes: #415008, although unfortunately this will
only be conveniently visible on new installations).
* Include URL to OpenBSD's ssl(8) in ssh(1), since I don't see a better
source for the same information among Debian's manual pages (closes:
#530692, LP: #456660).
-- Colin Watson <email address hidden> Mon, 04 Jan 2010 13:23:35 +0000
-
openssh (1:5.1p1-8) unstable; urgency=low
* Build with just -fPIC on mips/mipsel, not -fPIE as well (thanks, LIU Qi;
closes: #538313).
* Build-depend on libselinux1-dev on sh4 too (thanks, Nobuhiro Iwamatsu;
closes: #547103).
* Fix grammar in if-up script (closes: #549128).
* Pass $SSHD_OPTS when checking configuration too (thanks, "sobtwmxt";
closes: #548662).
-- Colin Watson <email address hidden> Mon, 05 Oct 2009 13:30:49 +0100
-
openssh (1:5.1p1-7) unstable; urgency=low
* Update config.guess and config.sub from autotools-dev 20090611.1
(closes: #538301).
* Set umask to 022 in the init script as well as postinsts (closes:
#539030).
* Add ${misc:Depends} to keep Lintian happy.
* Use 'which' rather than 'type' in maintainer scripts.
* Upgrade to debhelper v7.
-- Colin Watson <email address hidden> Fri, 31 Jul 2009 16:28:10 +0100
-
openssh (1:5.1p1-6) unstable; urgency=low
* Open /proc/self/oom_adj with O_RDONLY or O_WRONLY as necessary, rather
than O_RDWR.
* Disable OOM adjustment for vserver/OpenVZ (thanks, Karl Chen; closes:
#511771).
* Add ufw integration (thanks, Didier Roche; see
https://wiki.ubuntu.com/UbuntuFirewall#Integrating%20UFW%20with%20Packages;
LP: #261884).
* Add a comment above PermitRootLogin in sshd_config pointing to
README.Debian.
* Check if delgroup is present in openssh-client.postrm (closes: #530501).
* Build with -fPIC on mips/mipsel (thanks, Luk Claes; closes: #531942).
* Remove /var/run/sshd from openssh-server package; it will be created at
run-time before starting the server.
* Use invoke-rc.d in openssh-server's if-up script.
-- Colin Watson <email address hidden> Fri, 05 Jun 2009 11:56:03 +0100
-
openssh (1:5.1p1-5) unstable; urgency=low
* Backport from upstream CVS (Markus Friedl):
- packet_disconnect() on padding error, too. Should reduce the success
probability for the CPNI-957037 Plaintext Recovery Attack to 2^-18.
* Check that /var/run/sshd.pid exists and that the process ID listed there
corresponds to sshd before running '/etc/init.d/ssh reload' from if-up
script; SIGHUP is racy if called at boot before sshd has a chance to
install its signal handler, but fortunately the pid file is written
after that which lets us avoid the race (closes: #502444).
* While the above is a valuable sanity-check, it turns out that it doesn't
really fix the bug (thanks to Kevin Price for testing), so for the
meantime we'll just use '/etc/init.d/ssh restart', even though it is
unfortunately heavyweight.
-- Colin Watson <email address hidden> Wed, 14 Jan 2009 00:34:08 +0000
-
openssh (1:5.1p1-4) unstable; urgency=low
* ssh-copy-id: Strip trailing colons from hostname (closes: #226172,
LP: #249706; thanks to Karl Goetz for nudging this along; forwarded
upstream as https://bugzilla.mindrot.org/show_bug.cgi?id=1530).
* Backport from upstream CVS (Markus Friedl):
- Only send eow and no-more-sessions requests to openssh 5 and newer;
fixes interop problems with broken ssh v2 implementations (closes:
#495917).
* Fix double-free when failing to parse a forwarding specification given
using ~C (closes: #505330; forwarded upstream as
https://bugzilla.mindrot.org/show_bug.cgi?id=1539).
-- Colin Watson <email address hidden> Sun, 23 Nov 2008 14:46:10 +0000
-
openssh (1:5.1p1-3) unstable; urgency=low
* Remove unnecessary ssh-vulnkey output in non-verbose mode when no
compromised or unknown keys were found (closes: #496495).
* Configure with --disable-strip; dh_strip will deal with stripping
binaries and will honour DEB_BUILD_OPTIONS (thanks, Bernhard R. Link;
closes: #498681).
* Fix handling of zero-length server banners (thanks, Tomas Mraz; closes:
#497026).
-- Colin Watson <email address hidden> Tue, 30 Sep 2008 23:09:58 +0100
