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CVS log for src/crypto/external/bsd/openssh/dist/PROTOCOL.agent

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Revision 1.13 / (download) - annotate - [select for diffs], Wed Oct 5 22:39:36 2022 UTC (4 months ago) by christos
Branch: MAIN
CVS Tags: netbsd-10-base, netbsd-10, HEAD
Changes since 1.12: +3 -3 lines
Diff to previous 1.12 (colored)

merge conflicts between 9.0 and 9.1

Revision 1.1.1.11 / (download) - annotate - [select for diffs] (vendor branch), Wed Oct 5 22:35:32 2022 UTC (4 months ago) by christos
Branch: OPENSSH
CVS Tags: v91-20221004
Changes since 1.1.1.10: +3 -3 lines
Diff to previous 1.1.1.10 (colored)

Import OpenSSH-9.1 (previously we were on OpenSSH-9.0)

This release is focused on bug fixing.

Security
========

This release contains fixes for three minor memory safety problems.
None are believed to be exploitable, but we report most memory safety
problems as potential security vulnerabilities out of caution.

 * ssh-keyscan(1): fix a one-byte overflow in SSH- banner processing.
   Reported by Qualys

 * ssh-keygen(1): double free() in error path of file hashing step in
   signing/verify code; GHPR333

 * ssh-keysign(8): double-free in error path introduced in openssh-8.9

Potentially-incompatible changes
--------------------------------

 * The portable OpenSSH project now signs commits and release tags
   using git's recent SSH signature support. The list of developer
   signing keys is included in the repository as .git_allowed_signers
   and is cross-signed using the PGP key that is still used to sign
   release artifacts:
   https://cdn.openbsd.org/pub/OpenBSD/OpenSSH/RELEASE_KEY.asc

 * 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. bz3438

 * 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.


New features
------------

 * 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 "users-groups-by-id@openssh.com" extension
   request that allows the client to obtain user/group names that
   correspond to a set of uids/gids.

 * sftp(1): use "users-groups-by-id@openssh.com" 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 "expand-path@openssh.com", 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. bz3468

 * 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; bz3429

Bugfixes
--------

 * 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.
   GHPR302, GHPR329

 * 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. GHPR329

 * sshd(8): improve logging of errors when opening authorized_keys
   files. bz2042

 * ssh(1): avoid multiplexing operations that could cause SIGPIPE from
   causing the client to exit early. bz3454

 * ssh_config(5), sshd_config(5): clarify that the RekeyLimit
   directive applies to both transmitted and received data. GHPR328

 * ssh-keygen(1): avoid double fclose() in error path.

 * sshd(8): log an error if pipe() fails while accepting a
   connection. bz3447

 * ssh(1), ssh-keygen(1): fix possible NULL deref when built without
   FIDO support. bz3443

 * ssh-keyscan(1): add missing *-sk types to ssh-keyscan manpage.
   GHPR294.

 * sshd(8): ensure that authentication passwords are cleared from
   memory in error paths. GHPR286

 * ssh(1), ssh-agent(1): avoid possibility of notifier code executing
   kill(-1). GHPR286

 * ssh_config(5): note that the ProxyJump directive also accepts the
   same tokens as ProxyCommand. GHPR305.

 * scp(1): do not 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. bz3431

 * ssh-keygen(1): improve error message when 'ssh-keygen -Y sign' is
   unable to load a private key; bz3429

 * 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.

 * ssh(1), sshd(8): be stricter in which characters will be accepted
   in specifying a mask length; allow only 0-9. GHPR278

 * 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. GHPR287

Portability
-----------

 * ssh(1), ssh-keygen(1), sshd(8): automatically enable the built-in
   FIDO security key support if libfido2 is found and usable, unless
   --without-security-key-builtin was requested.

 * ssh(1), ssh-keygen(1), sshd(8): many fixes to make the WinHello
   FIDO device usable on Cygwin. The windows://hello FIDO device will
   be automatically used by default on this platform unless requested
   otherwise, or when probing resident FIDO credentials (an operation
   not currently supported by WinHello).

 * Portable OpenSSH: remove workarounds for obsolete and unsupported
   versions of OpenSSL libcrypto. In particular, this release removes
   fallback support for OpenSSL that lacks AES-CTR or AES-GCM.

   Those AES cipher modes were added to OpenSSL prior to the minimum
   version currently supported by OpenSSH, so this is not expected to
   impact any currently supported configurations.

 * sshd(8): fix SANDBOX_SECCOMP_FILTER_DEBUG on current Linux/glibc

 * All: resync and clean up internal CSPRNG code.

 * scp(1), sftp(1), sftp-server(8): avoid linking these programs with
   unnecessary libraries. They are no longer linked against libz and
   libcrypto. This may be of benefit to space constrained systems
   using any of those components in isolation.

 * sshd(8): add AUDIT_ARCH_PPC to supported seccomp sandbox
   architectures.

 * configure: remove special casing of crypt(). configure will no
   longer search for crypt() in libcrypto, as it was removed from
   there years ago. configure will now only search libc and libcrypt.

 * configure: refuse to use OpenSSL 3.0.4 due to potential RCE in its
   RSA implementation (CVE-2022-2274) on x86_64.

 * All: request 1.1x API compatibility for OpenSSL >=3.x; GHPR322

 * ssh(1), ssh-keygen(1), sshd(8): fix a number of missing includes
   required by the XMSS code on some platforms.

 * sshd(8): cache timezone data in capsicum sandbox.

Revision 1.12 / (download) - annotate - [select for diffs], Wed Feb 23 19:07:20 2022 UTC (11 months, 2 weeks ago) by christos
Branch: MAIN
Changes since 1.11: +82 -3 lines
Diff to previous 1.11 (colored)

Merge differences between openssh-8.8 and openssh-8.9

Revision 1.1.1.10 / (download) - annotate - [select for diffs] (vendor branch), Wed Feb 23 19:04:25 2022 UTC (11 months, 2 weeks ago) by christos
Branch: OPENSSH
CVS Tags: v90-20220408, v89-20220223
Changes since 1.1.1.9: +82 -3 lines
Diff to previous 1.1.1.9 (colored)

Import OpenSSH 8.9.

Future deprecation notice
=========================

A near-future release of OpenSSH will switch scp(1) from using the
legacy scp/rcp protocol to using SFTP by default.

Legacy scp/rcp performs wildcard expansion of remote filenames (e.g.
"scp host:* .") through the remote shell. This has the side effect of
requiring double quoting of shell meta-characters in file names
included on scp(1) command-lines, otherwise they could be interpreted
as shell commands on the remote side.

This creates one area of potential incompatibility: scp(1) when using
the SFTP protocol no longer requires this finicky and brittle quoting,
and attempts to use it may cause transfers to fail. We consider the
removal of the need for double-quoting shell characters in file names
to be a benefit and do not intend to introduce bug-compatibility for
legacy scp/rcp in scp(1) when using the SFTP protocol.

Another area of potential incompatibility relates to the use of remote
paths relative to other user's home directories, for example -
"scp host:~user/file /tmp". The SFTP protocol has no native way to
expand a ~user path. However, sftp-server(8) in OpenSSH 8.7 and later
support a protocol extension "expand-path@openssh.com" to support
this.

Security Near Miss
==================

 * 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.

   This situation is not exploitable because of independent checks in
   the privilege separation monitor. Privilege separation has been
   enabled by default in since openssh-3.2.2 (released in 2002) and
   has been mandatory since openssh-7.5 (released in 2017). Moreover,
   portable OpenSSH has used toolchain features available in most
   modern compilers to abort on signed integer overflow since
   openssh-6.5 (released in 2014).

   Thanks to Malcolm Stagg for finding and reporting this bug.

Potentially-incompatible changes
================================

 * sshd(8), portable OpenSSH only: this release removes in-built
   support for MD5-hashed passwords. If you require these on your
   system then we recommend linking against libxcrypt or similar.

 * This release modifies the FIDO security key middleware interface
   and increments SSH_SK_VERSION_MAJOR.

Changes since OpenSSH 8.8
=========================

This release includes a number of new features.

New features
------------

 * 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)
   A detailed description of the feature is available at
   https://www.openssh.com/agent-restrict.html and the protocol
   extensions are documented in the PROTOCOL and PROTOCOL.agent
   files in the source release.

 * ssh(1), sshd(8): add the sntrup761x25519-sha512@openssh.com 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.

Bugfixes
--------

 * sshd(8): document that CASignatureAlgorithms, ExposeAuthInfo and
   PubkeyAuthOptions can be used in a Match block. PR#277.

 * 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. bz3360

 * 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; bz3375

 * 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. bz3375

 * 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"; bz#3364

 * 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. bz3366

 * ssh(1), sshd(8): correct value for IPTOS_DSCP_LE. It needs to
   allow for the preceding two ECN bits. bz#3373

 * 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(); oss-fuzz
   issue #42719

 * ssh(1): suppress "Connection to xxx closed" messages when LogLevel
   is set to "error" or above. bz3378

 * ssh(1), sshd(8): use correct zlib flags when inflate(3)-ing
   compressed packet data. bz3372

 * 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 PR#289

 * 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. PR#295

 * ssh-keygen(1): allow 'ssh-keygen -Y find-principals' to match
   wildcard principals in allowed_signers files

Portability
-----------

 * 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.  bz#3349,

 * OS X poll(2) is broken; use compat replacement. For character-
   special devices like /dev/null, Darwin's poll(2) returns POLLNVAL
   when polled with POLLIN. Apparently this is Apple bug 3710161 -
   not public but a websearch will find other OSS projects
   rediscovering it periodically since it was first identified in
   2005.

 * Correct handling of exceptfds/POLLPRI in our select(2)-based
   poll(2)/ppoll(2) compat implementation.

 * Cygwin: correct checking of mbstowcs() return value.

 * Add a basic SECURITY.md that refers people to the openssh.com
   website.

 * Enable additional compiler warnings and toolchain hardening flags,
   including -Wbitwise-instead-of-logical, -Wmisleading-indentation,
   -fzero-call-used-regs and -ftrivial-auto-var-init.

 * HP/UX. Use compat getline(3) on HP-UX 10.x, where the libc version
   is not reliable.

Revision 1.11 / (download) - annotate - [select for diffs], Fri Mar 5 17:47:15 2021 UTC (23 months ago) by christos
Branch: MAIN
CVS Tags: cjep_sun2x-base1, cjep_sun2x-base, cjep_sun2x, cjep_staticlib_x-base1, cjep_staticlib_x-base, cjep_staticlib_x
Changes since 1.10: +2 -2 lines
Diff to previous 1.10 (colored)

merge local changes between openssh 8.4 and 8.5

Revision 1.1.1.9 / (download) - annotate - [select for diffs] (vendor branch), Fri Mar 5 17:45:24 2021 UTC (23 months ago) by christos
Branch: OPENSSH
CVS Tags: v88-20210926, v87-20210820, v86-20210419, v85_20210303
Changes since 1.1.1.8: +2 -2 lines
Diff to previous 1.1.1.8 (colored)

OpenSSH 8.5/8.5p1 (2021-03-03)

OpenSSH 8.5 was released on 2021-03-03. It is available from the
mirrors listed at https://www.openssh.com/.
OpenSSH is a 100% complete SSH protocol 2.0 implementation and
includes sftp client and server support.

Once again, we would like to thank the OpenSSH community for their
continued support of the project, especially those who contributed
code or patches, reported bugs, tested snapshots or donated to the
project. More information on donations may be found at:
https://www.openssh.com/donations.html

Future deprecation notice
=========================

It is now possible[1] to perform chosen-prefix attacks against the
SHA-1 algorithm for less than USD$50K.

In the SSH protocol, the "ssh-rsa" signature scheme uses the SHA-1
hash algorithm in conjunction with the RSA public key algorithm.
OpenSSH will disable this signature scheme by default in the near
future.

Note that the deactivation of "ssh-rsa" signatures does not necessarily
require cessation of use for RSA keys. In the SSH protocol, keys may be
capable of signing using multiple algorithms. In particular, "ssh-rsa"
keys are capable of signing using "rsa-sha2-256" (RSA/SHA256),
"rsa-sha2-512" (RSA/SHA512) and "ssh-rsa" (RSA/SHA1). Only the last of
these is being turned off by default.

This algorithm is unfortunately still used widely despite the
existence of better alternatives, being the only remaining public key
signature algorithm specified by the original SSH RFCs that is still
enabled by default.

The better alternatives include:

 * The RFC8332 RSA SHA-2 signature algorithms rsa-sha2-256/512. These
   algorithms have the advantage of using the same key type as
   "ssh-rsa" but use the safe SHA-2 hash algorithms. These have been
   supported since OpenSSH 7.2 and are already used by default if the
   client and server support them.

 * The RFC8709 ssh-ed25519 signature algorithm. It has been supported
   in OpenSSH since release 6.5.

 * The RFC5656 ECDSA algorithms: ecdsa-sha2-nistp256/384/521. These
   have been supported by OpenSSH since release 5.7.

To check whether a server is using the weak ssh-rsa public key
algorithm, for host authentication, try to connect to it after
removing the ssh-rsa algorithm from ssh(1)'s allowed list:

    ssh -oHostKeyAlgorithms=-ssh-rsa user@host

If the host key verification fails and no other supported host key
types are available, the server software on that host should be
upgraded.

This release enables the UpdateHostKeys option by default to assist
the client by automatically migrating to better algorithms.

[1] "SHA-1 is a Shambles: First Chosen-Prefix Collision on SHA-1 and
    Application to the PGP Web of Trust" Leurent, G and Peyrin, T
    (2020) https://eprint.iacr.org/2020/014.pdf

Security
========

 * ssh-agent(1): fixed a double-free memory corruption that was
   introduced in OpenSSH 8.2 . We treat all such memory faults as
   potentially exploitable. This bug could be reached by an attacker
   with access to the agent socket.

   On modern operating systems where the OS can provide information
   about the user identity connected to a socket, OpenSSH ssh-agent
   and sshd limit agent socket access only to the originating user
   and root. Additional mitigation may be afforded by the system's
   malloc(3)/free(3) implementation, if it detects double-free
   conditions.

   The most likely scenario for exploitation is a user forwarding an
   agent either to an account shared with a malicious user or to a
   host with an attacker holding root access.

 * Portable sshd(8): Prevent excessively long username going to PAM.
   This is a mitigation for a buffer overflow in Solaris' PAM username
   handling (CVE-2020-14871), and is only enabled for Sun-derived PAM
   implementations.  This is not a problem in sshd itself, it only
   prevents sshd from being used as a vector to attack Solaris' PAM.
   It does not prevent the bug in PAM from being exploited via some
   other PAM application. GHPR212


Potentially-incompatible changes
================================

This release includes a number of changes that may affect existing
configurations:

 * ssh(1), sshd(8): this release changes 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. The connection phase of
   the SSH session is time-sensitive and often explicitly interactive.
   The ultimate interactive/bulk TOS/DSCP will be set after
   authentication completes.

 * ssh(1), sshd(8): remove the pre-standardization cipher
   rijndael-cbc@lysator.liu.se. It is an alias for aes256-cbc before
   it was standardized in RFC4253 (2006), has been deprecated and
   disabled by default since OpenSSH 7.2 (2016) and was only briefly
   documented in ssh.1 in 2001.

 * ssh(1), sshd(8): update/replace the experimental post-quantum
   hybrid key exchange method based on Streamlined NTRU Prime coupled
   with X25519.

   The previous sntrup4591761x25519-sha512@tinyssh.org method is
   replaced with sntrup761x25519-sha512@openssh.com. Per its
   designers, the sntrup4591761 algorithm was superseded almost two
   years ago by sntrup761.

   (note this both the updated method and the one that it replaced are
   disabled by default)

 * 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.

Changes since OpenSSH 8.4
=========================

New features
------------

 * ssh(1): this release enables UpdateHostkeys by default subject to
   some conservative preconditions:
    - 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 for
   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.

Bugfixes
--------

 * 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. bz#3224

 * sshd(8): fix sshd_config SetEnv directives located inside Match
   blocks. GHPR201

 * 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. bz#3229

 * 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. bz#3253

 * ssh(1), sshd(8): similarly, rename HostbasedKeyTypes (ssh) and
   HostbasedAcceptedKeyTypes (sshd) to HostbasedAcceptedAlgorithms.

 * sftp-server(8): add missing lsetstat@openssh.com 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 (oss-fuzz #30078).

 * sftp(1): allow the full range of UIDs/GIDs for chown/chgrp on 32bit
   platforms instead of being limited by LONG_MAX. bz#3206

 * Minor man page fixes (capitalization, commas, etc.) bz#3223

 * 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. bz#3222

 * ssh-keygen(1): document the -Z, check the validity of its argument
   earlier and provide a better error message if it's not correct.
   bz#2879

 * ssh(1): ignore comments at the end of config lines in ssh_config,
   similar to what we already do for sshd_config. bz#2320

 * sshd_config(5): mention that DisableForwarding is valid in a
   sshd_config Match block. bz3239

 * sftp(1): fix incorrect sorting of "ls -ltr" under some
   circumstances. bz3248.

 * ssh(1), sshd(8): fix potential integer truncation of (unlikely)
   timeout values. bz#3250

 * 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.

Portability
-----------

 * sshd(8): add a number of platform-specific syscalls to the Linux
   seccomp-bpf sandbox. bz#3232 bz#3260

 * sshd(8): remove debug message from sigchld handler that could cause
   deadlock on some platforms. bz#3259

 * Sync contrib/ssh-copy-id with upstream.

 * unittests: add a hostname function for systems that don't have it.
   Some systems don't have a hostname command (it's not required by
   POSIX). The do have uname -n (which is), but not all of those have
   it report the FQDN.

Checksums:
==========

 - SHA1 (openssh-8.5.tar.gz) = 04cae43c389fb411227c01219e4eb46e3113f34e
 - SHA256 (openssh-8.5.tar.gz) = 5qB2CgzNG4io4DmChTjHgCWqRWvEOvCKJskLdJCz+SU=

 - SHA1 (openssh-8.5p1.tar.gz) = 72eadcbe313b07b1dd3b693e41d3cd56d354e24e
 - SHA256 (openssh-8.5p1.tar.gz) = 9S8/QdQpqpkY44zyAK8iXM3Y5m8FLaVyhwyJc3ZG7CU=

Please note that the SHA256 signatures are base64 encoded and not
hexadecimal (which is the default for most checksum tools). The PGP
key used to sign the releases is available from the mirror sites:
https://cdn.openbsd.org/pub/OpenBSD/OpenSSH/RELEASE_KEY.asc

Please note that the OpenPGP key used to sign releases has been
rotated for this release. The new key has been signed by the previous
key to provide continuity.

Reporting Bugs:
===============

- Please read https://www.openssh.com/report.html
  Security bugs should be reported directly to openssh@openssh.com

Revision 1.10 / (download) - annotate - [select for diffs], Fri Dec 4 18:42:49 2020 UTC (2 years, 2 months ago) by christos
Branch: MAIN
Changes since 1.9: +2 -0 lines
Diff to previous 1.9 (colored)

Merge conflicts

Revision 1.1.1.8 / (download) - annotate - [select for diffs] (vendor branch), Fri Dec 4 18:40:04 2020 UTC (2 years, 2 months ago) by christos
Branch: OPENSSH
CVS Tags: v84-20200927
Changes since 1.1.1.7: +2 -0 lines
Diff to previous 1.1.1.7 (colored)

OpenSSH 8.4 was released on 2020-09-27. It is available from the
mirrors listed at https://www.openssh.com/.

OpenSSH is a 100% complete SSH protocol 2.0 implementation and
includes sftp client and server support.

Once again, we would like to thank the OpenSSH community for their
continued support of the project, especially those who contributed
code or patches, reported bugs, tested snapshots or donated to the
project. More information on donations may be found at:
https://www.openssh.com/donations.html

Future deprecation notice
=========================

It is now possible[1] to perform chosen-prefix attacks against the
SHA-1 algorithm for less than USD$50K. For this reason, we will be
disabling the "ssh-rsa" public key signature algorithm by default in a
near-future release.

This algorithm is unfortunately still used widely despite the
existence of better alternatives, being the only remaining public key
signature algorithm specified by the original SSH RFCs.

The better alternatives include:

 * The RFC8332 RSA SHA-2 signature algorithms rsa-sha2-256/512. These
   algorithms have the advantage of using the same key type as
   "ssh-rsa" but use the safe SHA-2 hash algorithms. These have been
   supported since OpenSSH 7.2 and are already used by default if the
   client and server support them.

 * The ssh-ed25519 signature algorithm. It has been supported in
   OpenSSH since release 6.5.

 * The RFC5656 ECDSA algorithms: ecdsa-sha2-nistp256/384/521. These
   have been supported by OpenSSH since release 5.7.

To check whether a server is using the weak ssh-rsa public key
algorithm, for host authentication, try to connect to it after
removing the ssh-rsa algorithm from ssh(1)'s allowed list:

    ssh -oHostKeyAlgorithms=-ssh-rsa user@host

If the host key verification fails and no other supported host key
types are available, the server software on that host should be
upgraded.

We intend to enable UpdateHostKeys by default in the next OpenSSH
release. This will assist the client by automatically migrating to
better algorithms. Users may consider enabling this option manually.

[1] "SHA-1 is a Shambles: First Chosen-Prefix Collision on SHA-1 and
    Application to the PGP Web of Trust" Leurent, G and Peyrin, T
    (2020) https://eprint.iacr.org/2020/014.pdf

Security
========

 * ssh-agent(1): restrict ssh-agent from signing web challenges for
   FIDO/U2F keys.

   When signing messages in ssh-agent using a FIDO key that has an
   application string that does not start with "ssh:", ensure that the
   message being signed is one of the forms expected for the SSH protocol
   (currently public key authentication and sshsig signatures).

   This prevents ssh-agent forwarding on a host that has FIDO keys
   attached granting the ability for the remote side to sign challenges
   for web authentication using those keys too.

   Note that the converse case of web browsers signing SSH challenges is
   already precluded because no web RP can have the "ssh:" prefix in the
   application string that we require.

 * ssh-keygen(1): Enable FIDO 2.1 credProtect extension when generating
   a FIDO resident key.

   The recent FIDO 2.1 Client to Authenticator Protocol introduced a
   "credProtect" feature to better protect resident keys. We use this
   option to require a PIN prior to all operations that may retrieve
   a resident key from a FIDO token.

Potentially-incompatible changes
================================

This release includes a number of changes that may affect existing
configurations:

 * For FIDO/U2F support, OpenSSH recommends the use of libfido2 1.5.0
   or greater. Older libraries have limited support at the expense of
   disabling particular features. These include resident keys, PIN-
   required keys and multiple attached tokens.

 * 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.

 * The portable OpenSSH distribution now requires automake to rebuild
   the configure script and supporting files. This is not required when
   simply building portable OpenSSH from a release tar file.

Changes since OpenSSH 8.3
=========================

New features
------------

 * 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. bz#3140

 * 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. bz#69

 * 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". bz#1654

 * ssh(1): add %-TOKEN, environment variable and tilde expansion to
   the UserKnownHostsFile directive, allowing the path to be
   completed by the configuration (e.g. bz#1654)

 * ssh-keygen(1): allow "ssh-add -d -" to read keys to be deleted
   from stdin. bz#3180

 * sshd(8): improve logging for MaxStartups connection throttling.
   sshd will now log when it starts and stops throttling and periodically
   while in this state. bz#3055

Bugfixes
--------

 * 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; bz#3122

 * ssh(1): close stdin/out/error when forking after authentication
   completes ("ssh -f ...") bz#3137

 * 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; bz#3157

 * 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. bz#3198

 * ssh(1): also compare username when checking for JumpHost loops.
   bz#3057

 * 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. bz#3146

 * 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.
   bz#3185

 * 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. bz#2265

 * 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. bz#3054

 * ssh(1), sshd(8): handle EINTR in waitfd() and timeout_connect()
   helpers. bz#3071

 * 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. bz#3156

 * ssh(1), sshd(8): fix multiplier when parsing time specifications
   when handling seconds after other units. bz#3171

Portability
-----------

 * 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. bz#2049

 * Implement some backwards compatibility for libfido2 libraries
   older than 1.5.0. Note that use of an older library will result
   in the loss of certain features including resident key support,
   PIN support and support for multiple attached tokens.

 * configure fixes for XCode 12

 * 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.

 * sshd(8): document another PAM spec problem in a frustrated comment

 * sshd(8): support NetBSD's utmpx.ut_ss address field. bz#960

 * Add the ssh-sk-helper binary and its manpage to the RPM spec file

 * Detect the Frankenstein monster of Linux/X32 and allow the sandbox
   to function there. bz#3085

Revision 1.8.6.1 / (download) - annotate - [select for diffs], Mon Dec 4 10:55:18 2017 UTC (5 years, 2 months ago) by snj
Branch: netbsd-8
CVS Tags: netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1
Changes since 1.8: +4 -583 lines
Diff to previous 1.8 (colored) next main 1.9 (colored)

Pull up following revision(s) (requested by sevan in ticket #320):
	distrib/sets/lists/base/shl.mi: 1.822
	distrib/sets/lists/debug/shl.mi: 1.184
	doc/3RDPARTY: 1.1475
	crypto/external/bsd/openssh/Makefile.inc: up to 1.10
	crypto/external/bsd/openssh/bin/ssh/Makefile: up to 1.12
	crypto/external/bsd/openssh/dist/LICENCE: up to 1.6
	crypto/external/bsd/openssh/dist/PROTOCOL: up to 1.10
	crypto/external/bsd/openssh/dist/PROTOCOL.agent: up to 1.9
	crypto/external/bsd/openssh/dist/PROTOCOL.certkeys: up to 1.8
	crypto/external/bsd/openssh/dist/auth-options.c: up to 1.16
	crypto/external/bsd/openssh/dist/auth-options.h: up to 1.9
	crypto/external/bsd/openssh/dist/auth-pam.c: up to 1.12
	crypto/external/bsd/openssh/dist/auth.c: up to 1.20
	crypto/external/bsd/openssh/dist/auth.h: up to 1.16
	crypto/external/bsd/openssh/dist/auth2-chall.c: up to 1.13
	crypto/external/bsd/openssh/dist/auth2-gss.c: up to 1.11
	crypto/external/bsd/openssh/dist/auth2-hostbased.c: up to 1.12
	crypto/external/bsd/openssh/dist/auth2-kbdint.c: up to 1.8
	crypto/external/bsd/openssh/dist/auth2-krb5.c: up to 1.7
	crypto/external/bsd/openssh/dist/auth2-none.c: up to 1.8
	crypto/external/bsd/openssh/dist/auth2-passwd.c: up to 1.8
	crypto/external/bsd/openssh/dist/auth2-pubkey.c: up to 1.18
	crypto/external/bsd/openssh/dist/auth2.c: up to 1.15
	crypto/external/bsd/openssh/dist/authfd.c: up to 1.14
	crypto/external/bsd/openssh/dist/authfd.h: up to 1.9
	crypto/external/bsd/openssh/dist/authfile.c: up to 1.17
	crypto/external/bsd/openssh/dist/bitmap.c: up to 1.6
	crypto/external/bsd/openssh/dist/bufbn.c: up to 1.9
	crypto/external/bsd/openssh/dist/buffer.h: up to 1.10
	crypto/external/bsd/openssh/dist/channels.c: up to 1.20
	crypto/external/bsd/openssh/dist/channels.h: up to 1.14
	crypto/external/bsd/openssh/dist/cipher-3des1.c: delete
	crypto/external/bsd/openssh/dist/cipher-bf1.c: delete
	crypto/external/bsd/openssh/dist/cipher.c: up to 1.11
	crypto/external/bsd/openssh/dist/cipher.h: up to 1.11
	crypto/external/bsd/openssh/dist/clientloop.c: up to 1.22
	crypto/external/bsd/openssh/dist/clientloop.h: up to 1.15
	crypto/external/bsd/openssh/dist/compat.c: up to 1.17
	crypto/external/bsd/openssh/dist/compat.h: up to 1.10
	crypto/external/bsd/openssh/dist/deattack.c: delete
	crypto/external/bsd/openssh/dist/deattack.h: delete
	crypto/external/bsd/openssh/dist/digest-libc.c: up to 1.7
	crypto/external/bsd/openssh/dist/digest-openssl.c: up to 1.6
	crypto/external/bsd/openssh/dist/digest.h: up to 1.1.1.3
	crypto/external/bsd/openssh/dist/dispatch.c: up to 1.9
	crypto/external/bsd/openssh/dist/dispatch.h: up to 1.7
	crypto/external/bsd/openssh/dist/dns.c: up to 1.15
	crypto/external/bsd/openssh/dist/dns.h: up to 1.10
	crypto/external/bsd/openssh/dist/gss-serv.c: up to 1.11
	crypto/external/bsd/openssh/dist/hostfile.c: up to 1.11
	crypto/external/bsd/openssh/dist/includes.h: up to 1.7
	crypto/external/bsd/openssh/dist/kex.c: up to 1.19
	crypto/external/bsd/openssh/dist/kex.h: up to 1.16
	crypto/external/bsd/openssh/dist/kexc25519c.c: up to 1.7
	crypto/external/bsd/openssh/dist/kexc25519s.c: up to 1.9
	crypto/external/bsd/openssh/dist/kexdhc.c: up to 1.10
	crypto/external/bsd/openssh/dist/kexdhs.c: up to 1.13
	crypto/external/bsd/openssh/dist/kexecdhc.c: up to 1.8
	crypto/external/bsd/openssh/dist/kexecdhs.c: up to 1.9
	crypto/external/bsd/openssh/dist/kexgexc.c: up to 1.10
	crypto/external/bsd/openssh/dist/kexgexs.c: up to 1.14
	crypto/external/bsd/openssh/dist/key.c: up to 1.22
	crypto/external/bsd/openssh/dist/key.h: up to 1.14
	crypto/external/bsd/openssh/dist/krl.c: up to 1.11
	crypto/external/bsd/openssh/dist/log.c: up to 1.17
	crypto/external/bsd/openssh/dist/log.h: up to 1.13
	crypto/external/bsd/openssh/dist/mac.c: up to 1.15
	crypto/external/bsd/openssh/dist/misc.c: up to 1.16
	crypto/external/bsd/openssh/dist/misc.h: up to 1.13
	crypto/external/bsd/openssh/dist/moduli-gen/moduli-gen.sh: up to 1.1.1.2
	crypto/external/bsd/openssh/dist/moduli-gen/moduli.2048: up to 1.3
	crypto/external/bsd/openssh/dist/moduli-gen/moduli.3072: up to 1.3
	crypto/external/bsd/openssh/dist/moduli-gen/moduli.4096: up to 1.3
	crypto/external/bsd/openssh/dist/moduli-gen/moduli.6144: up to 1.3
	crypto/external/bsd/openssh/dist/moduli-gen/moduli.7680: up to 1.3
	crypto/external/bsd/openssh/dist/moduli-gen/moduli.8192: up to 1.3
	crypto/external/bsd/openssh/dist/monitor.c: up to 1.23
	crypto/external/bsd/openssh/dist/monitor_wrap.c: up to 1.18
	crypto/external/bsd/openssh/dist/monitor_wrap.h: up to 1.14
	crypto/external/bsd/openssh/dist/mux.c: up to 1.19
	crypto/external/bsd/openssh/dist/myproposal.h: up to 1.17
	crypto/external/bsd/openssh/dist/nchan.c: up to 1.9
	crypto/external/bsd/openssh/dist/opacket.c: up to 1.8
	crypto/external/bsd/openssh/dist/opacket.h: up to 1.8
	crypto/external/bsd/openssh/dist/packet.c: up to 1.29
	crypto/external/bsd/openssh/dist/packet.h: up to 1.16
	crypto/external/bsd/openssh/dist/pathnames.h: up to 1.13
	crypto/external/bsd/openssh/dist/pfilter.c: up to 1.4
	crypto/external/bsd/openssh/dist/readconf.c: up to 1.22
	crypto/external/bsd/openssh/dist/readconf.h: up to 1.19
	crypto/external/bsd/openssh/dist/recallocarray.c: up to 1.1
	crypto/external/bsd/openssh/dist/rsa.c: delete
	crypto/external/bsd/openssh/dist/rsa.h: delete
	crypto/external/bsd/openssh/dist/scp.1: up to 1.15
	crypto/external/bsd/openssh/dist/scp.c: up to 1.17
	crypto/external/bsd/openssh/dist/servconf.c: up to 1.25
	crypto/external/bsd/openssh/dist/servconf.h: up to 1.16
	crypto/external/bsd/openssh/dist/serverloop.c: up to 1.18
	crypto/external/bsd/openssh/dist/serverloop.h: up to 1.7
	crypto/external/bsd/openssh/dist/session.c: up to 1.23
	crypto/external/bsd/openssh/dist/session.h: up to 1.8
	crypto/external/bsd/openssh/dist/sftp-client.c: up to 1.19
	crypto/external/bsd/openssh/dist/sftp-common.c: up to 1.10
	crypto/external/bsd/openssh/dist/sftp-server.c: up to 1.17
	crypto/external/bsd/openssh/dist/sftp.1: up to 1.16
	crypto/external/bsd/openssh/dist/sftp.c: up to 1.22
	crypto/external/bsd/openssh/dist/ssh-add.1: up to 1.13
	crypto/external/bsd/openssh/dist/ssh-add.c: up to 1.16
	crypto/external/bsd/openssh/dist/ssh-agent.c: up to 1.21
	crypto/external/bsd/openssh/dist/ssh-gss.h: up to 1.8
	crypto/external/bsd/openssh/dist/ssh-keygen.1: up to 1.20
	crypto/external/bsd/openssh/dist/ssh-keygen.c: up to 1.28
	crypto/external/bsd/openssh/dist/ssh-keyscan.1: up to 1.14
	crypto/external/bsd/openssh/dist/ssh-keyscan.c: up to 1.20
	crypto/external/bsd/openssh/dist/ssh-pkcs11-client.c: up to 1.10
	crypto/external/bsd/openssh/dist/ssh-pkcs11-helper.c: up to 1.13
	crypto/external/bsd/openssh/dist/ssh-pkcs11.c: up to 1.13
	crypto/external/bsd/openssh/dist/ssh-rsa.c: up to 1.13
	crypto/external/bsd/openssh/dist/ssh.1: up to 1.21
	crypto/external/bsd/openssh/dist/ssh.c: up to 1.26
	crypto/external/bsd/openssh/dist/ssh.h: up to 1.10
	crypto/external/bsd/openssh/dist/ssh1.h: delete
	crypto/external/bsd/openssh/dist/ssh_api.c: up to 1.7
	crypto/external/bsd/openssh/dist/ssh_config: up to 1.11
	crypto/external/bsd/openssh/dist/ssh_config.5: up to 1.21
	crypto/external/bsd/openssh/dist/sshbuf-getput-basic.c: up to 1.8
	crypto/external/bsd/openssh/dist/sshbuf.c: up to 1.8
	crypto/external/bsd/openssh/dist/sshbuf.h: up to 1.8
	crypto/external/bsd/openssh/dist/sshconnect.c: up to 1.20
	crypto/external/bsd/openssh/dist/sshconnect.h: up to 1.10
	crypto/external/bsd/openssh/dist/sshconnect1.c: delete
	crypto/external/bsd/openssh/dist/sshconnect2.c: up to 1.29
	crypto/external/bsd/openssh/dist/sshd.8: up to 1.19
	crypto/external/bsd/openssh/dist/sshd.c: up to 1.28
	crypto/external/bsd/openssh/dist/sshd_config.5: up to 1.25
	crypto/external/bsd/openssh/dist/ssherr.c: up to 1.7
	crypto/external/bsd/openssh/dist/ssherr.h: up to 1.1.1.3
	crypto/external/bsd/openssh/dist/sshkey.c: up to 1.11
	crypto/external/bsd/openssh/dist/sshkey.h: up to 1.6
	crypto/external/bsd/openssh/dist/ttymodes.c: up to 1.8
	crypto/external/bsd/openssh/dist/ttymodes.h: up to 1.8
	crypto/external/bsd/openssh/dist/umac.c: up to 1.14
	crypto/external/bsd/openssh/dist/utf8.c: up to 1.6
	crypto/external/bsd/openssh/dist/version.h: up to 1.24
	crypto/external/bsd/openssh/dist/xmalloc.c: up to 1.10
	crypto/external/bsd/openssh/dist/xmalloc.h: up to 1.10
	crypto/external/bsd/openssh/lib/Makefile: up to 1.23
	crypto/external/bsd/openssh/lib/shlib_version: up to 1.20
Update OpenSSH to 7.6.

Revision 1.9 / (download) - annotate - [select for diffs], Sat Oct 7 19:39:19 2017 UTC (5 years, 4 months ago) by christos
Branch: MAIN
CVS Tags: phil-wifi-base, phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, phil-wifi-20190609, phil-wifi, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, netbsd-9-base, netbsd-9-3-RELEASE, netbsd-9-2-RELEASE, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, is-mlppp-base, is-mlppp
Changes since 1.8: +3 -582 lines
Diff to previous 1.8 (colored)

merge conflicts.

Revision 1.1.1.7 / (download) - annotate - [select for diffs] (vendor branch), Sat Oct 7 19:36:11 2017 UTC (5 years, 4 months ago) by christos
Branch: OPENSSH
CVS Tags: v83-20200527, v82-20200214, v81-20191009, v80-20190417, v78-20180824, v77-20180405, v76-20171003
Changes since 1.1.1.6: +3 -582 lines
Diff to previous 1.1.1.6 (colored)

Potentially-incompatible changes
================================

This release includes a number of changes that may affect existing
configurations:

 * ssh(1): delete SSH protocol version 1 support, associated
   configuration options and documentation.

 * 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.

Changes since OpenSSH 7.5
=========================

This is primarily a bugfix release. It also contains substantial
internal refactoring.

Security
--------

 * sftp-server(8): in read-only mode, sftp-server was incorrectly
   permitting creation of zero-length files. Reported by Michal
   Zalewski.

New Features
------------

 * 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;
   bz#2717

 * 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. bz#2377

 * 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): added -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". bz#2400

 * ssh(1): add SyslogFacility option to ssh(1) matching the equivalent
   option in sshd(8). bz#2705

Bugfixes
--------

 * ssh(1): use HostKeyAlias if specified instead of hostname for
   matching host certificate principal names; bz#2728

 * sftp(1): implement sorting for globbed ls; bz#2649

 * 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. bz#2720

 * ssh(1): accept unknown EXT_INFO extension values that contain \0
   characters. These are legal, but would previously cause fatal
   connection errors if received.

 * ssh(1)/sshd(8): repair compression statistics printed at
   connection exit

 * sftp(1): print '?' instead of incorrect link count (that the
   protocol doesn't provide) for remote listings. bz#2710

 * 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. bz#2707

 * ssh(1): mention that the server may send debug messages to explain
   public key authentication problems under some circumstances; bz#2709

 * Translate OpenSSL error codes to better report incorrect passphrase
   errors when loading private keys; bz#2699

 * sshd(8): adjust compatibility patterns for WinSCP to correctly
   identify versions that implement only the legacy DH group exchange
   scheme. bz#2748

 * 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.
   bz#1906, bz#2744

 * 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. bz#2561

 * ssh(1): fix pledge(2) violation in the escape sequence "~&" used to
   place the current session in the background.

 * ssh-keyscan(1): avoid double-close() on file descriptors; bz#2734

 * sshd(8): avoid reliance on shared use of pointers shared between
   monitor and child sshd processes. bz#2704

 * sshd_config(8): document available AuthenticationMethods; bz#2453

 * ssh(1): avoid truncation in some login prompts; bz#2768

 * sshd(8): Fix various compilations failures, inc bz#2767

 * ssh(1): make "--" before the hostname terminate argument processing
   after the hostname too.

 * ssh-keygen(1): switch from aes256-cbc to aes256-ctr for encrypting
   new-style private keys. Fixes problems related to private key
   handling for no-OpenSSL builds. bz#2754

 * ssh(1): warn and do not attempt to use keys when the public and
   private halves do not match. bz#2737

 * sftp(1): don't print verbose error message when ssh disconnects
   from under sftp. bz#2750

 * sshd(8): fix keepalive scheduling problem: activity on a forwarded
   port from preventing the keepalive from being sent; bz#2756

 * sshd(8): when started without root privileges, don't require the
   privilege separation user or path to exist. Makes running the
   regression tests easier without touching the filesystem.

 * Make integrity.sh regression tests more robust against timeouts.
   bz#2658

 * ssh(1)/sshd(8): correctness fix for channels implementation: accept
   channel IDs greater than 0x7FFFFFFF.

Portability
-----------

 * sshd(9): drop two more privileges in the Solaris sandbox:
   PRIV_DAX_ACCESS and PRIV_SYS_IB_INFO; bz#2723

 * sshd(8): expose list of completed authentication methods to PAM
   via the SSH_AUTH_INFO_0 PAM environment variable. bz#2408

 * ssh(1)/sshd(8): fix several problems in the tun/tap forwarding code,
   mostly to do with host/network byte order confusion. bz#2735

 * Add --with-cflags-after and --with-ldflags-after configure flags to
   allow setting CFLAGS/LDFLAGS after configure has completed. These
   are useful for setting sanitiser/fuzzing options that may interfere
   with configure's operation.

 * sshd(8): avoid Linux seccomp violations on ppc64le over the
   socketcall syscall.

 * Fix use of ldns when using ldns-config; bz#2697

 * configure: set cache variables when cross-compiling. The cross-
   compiling fallback message was saying it assumed the test passed,
   but it wasn't actually set the cache variables and this would
   cause later tests to fail.

 * Add clang libFuzzer harnesses for public key parsing and signature
   verification.

Revision 1.2.4.1 / (download) - annotate - [select for diffs], Tue Aug 15 05:27:51 2017 UTC (5 years, 5 months ago) by snj
Branch: netbsd-6
Changes since 1.2: +26 -4 lines
Diff to previous 1.2 (colored) next main 1.3 (colored)

Apply patch (requested by mrg in ticket #1468):
Update OpenSSH to 7.5.

Revision 1.2.16.1 / (download) - annotate - [select for diffs], Tue Aug 15 04:40:16 2017 UTC (5 years, 5 months ago) by snj
Branch: netbsd-6-1
Changes since 1.2: +26 -4 lines
Diff to previous 1.2 (colored) next main 1.3 (colored)

Apply patch (requested by mrg in ticket #1468):
Update OpenSSH to 7.5.

Revision 1.2.10.1 / (download) - annotate - [select for diffs], Tue Aug 15 04:39:20 2017 UTC (5 years, 5 months ago) by snj
Branch: netbsd-6-0
Changes since 1.2: +26 -4 lines
Diff to previous 1.2 (colored) next main 1.3 (colored)

Apply patch (requested by mrg in ticket #1468):
Update OpenSSH to 7.5.

Revision 1.6.2.2 / (download) - annotate - [select for diffs], Sat Jan 7 08:53:41 2017 UTC (6 years, 1 month ago) by pgoyette
Branch: pgoyette-localcount
Changes since 1.6.2.1: +1 -1 lines
Diff to previous 1.6.2.1 (colored) to branchpoint 1.6 (colored) next main 1.7 (colored)

Sync with HEAD.  (Note that most of these changes are simply $NetBSD$
tag issues.)

Revision 1.8 / (download) - annotate - [select for diffs], Sun Dec 25 00:07:46 2016 UTC (6 years, 1 month ago) by christos
Branch: MAIN
CVS Tags: prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-8-base, matt-nb8-mediatek-base, matt-nb8-mediatek, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan
Branch point for: netbsd-8
Changes since 1.7: +0 -0 lines
Diff to previous 1.7 (colored)

merge conflicts

Revision 1.6.2.1 / (download) - annotate - [select for diffs], Sat Aug 6 00:18:38 2016 UTC (6 years, 6 months ago) by pgoyette
Branch: pgoyette-localcount
Changes since 1.6: +24 -2 lines
Diff to previous 1.6 (colored)

Sync with HEAD

Revision 1.7 / (download) - annotate - [select for diffs], Tue Aug 2 13:45:12 2016 UTC (6 years, 6 months ago) by christos
Branch: MAIN
CVS Tags: pgoyette-localcount-20161104, pgoyette-localcount-20160806, localcount-20160914
Changes since 1.6: +23 -1 lines
Diff to previous 1.6 (colored)

merge conflicts.

Revision 1.1.1.6 / (download) - annotate - [select for diffs] (vendor branch), Tue Aug 2 13:29:05 2016 UTC (6 years, 6 months ago) by christos
Branch: OPENSSH
CVS Tags: v75-20170418, v74-20161219, v73-20160802
Changes since 1.1.1.5: +23 -1 lines
Diff to previous 1.1.1.5 (colored)

OpenSSH 7.3 has just been released. It will be available from the
mirrors listed at http://www.openssh.com/ shortly.

OpenSSH is a 100% complete SSH protocol 2.0 implementation and
includes sftp client and server support. OpenSSH also includes
transitional support for the legacy SSH 1.3 and 1.5 protocols
that may be enabled at compile-time.

Once again, we would like to thank the OpenSSH community for their
continued support of the project, especially those who contributed
code or patches, reported bugs, tested snapshots or donated to the
project. More information on donations may be found at:
http://www.openssh.com/donations.html

Future deprecation notice
=========================

We plan on retiring more legacy cryptography in a near-future
release, specifically:

 * Refusing all RSA keys smaller than 1024 bits (the current minimum
   is 768 bits)
 * Removing server-side support for the SSH v.1 protocol (currently
   compile-time disabled).
 * In approximately 1 year, removing all support for the SSH v.1
   protocol (currently compile-time disabled).

This list reflects our current intentions, but please check the final
release notes for future releases.

Changes since OpenSSH 7.2
=========================

This is primarily a bugfix release.

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. Independently
   reported by Tomas Kuthan (Oracle), Andres Rojas and Javier Nieto.

 * sshd(8): Mitigate timing differences in password authentication
   that could be used to discern valid from invalid account names
   when long passwords were sent and particular password hashing
   algorithms are in use on the server. CVE-2016-6210, reported by
   EddieEzra.Harari at verint.com

 * ssh(1), sshd(8): Fix observable timing weakness in the CBC padding
   oracle countermeasures. Reported by Jean Paul Degabriele, Kenny
   Paterson, Torben Hansen and Martin Albrecht. Note that CBC ciphers
   are disabled by default and only included for legacy compatibility.

 * 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.  Reported by Jean Paul Degabriele,
   Kenny Paterson, Torben Hansen and Martin Albrecht.

 * sshd(8): (portable only) Ignore PAM environment vars when
   UseLogin=yes. If PAM is configured to read user-specified
   environment variables and UseLogin=yes in sshd_config, then a
   hostile local user may attack /bin/login via LD_PRELOAD or
   similar environment variables set via PAM. CVE-2015-8325,
   found by Shayan Sadigh.

New Features
------------

 * 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. bz#2577

 * ssh(1), sshd(8): Implement support for the IUTF8 terminal mode as
   per draft-sgtatham-secsh-iutf8-00.

 * 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.

 * ssh(1): Permit UTF-8 characters in pre-authentication banners sent
   from the server. bz#2058

Bugfixes
--------

 * ssh(1), sshd(8): Reduce the syslog level of some relatively common
   protocol events from LOG_CRIT. bz#2585

 * sshd(8): Refuse AuthenticationMethods="" in configurations and
   accept AuthenticationMethods=any for the default behaviour of not
   requiring multiple authentication. bz#2398

 * sshd(8): Remove obsolete and misleading "POSSIBLE BREAK-IN
   ATTEMPT!" message when forward and reverse DNS don't match. bz#2585

 * ssh(1): Close ControlPersist background process stderr except
   in debug mode or when logging to syslog. bz#1988

 * misc: Make PROTOCOL description for direct-streamlocal@openssh.com
   channel open messages match deployed code. bz#2529

 * ssh(1): Deduplicate LocalForward and RemoteForward entries to fix
   failures when both ExitOnForwardFailure and hostname
   canonicalisation are enabled. bz#2562

 * sshd(8): Remove fallback from moduli to obsolete "primes" file
   that was deprecated in 2001. bz#2559.

 * sshd_config(5): Correct description of UseDNS: it affects ssh
   hostname processing for authorized_keys, not known_hosts; bz#2554

 * ssh(1): Fix authentication using lone certificate keys in an agent
   without corresponding private keys on the filesystem. bz#2550

 * sshd(8): Send ClientAliveInterval pings when a time-based
   RekeyLimit is set; previously keepalive packets were not being
   sent. bz#2252

Portability
-----------

 * ssh(1), sshd(8): Fix compilation by automatically disabling ciphers
   not supported by OpenSSL. bz#2466

 * misc: Fix compilation failures on some versions of AIX's compiler
   related to the definition of the VA_COPY macro. bz#2589

 * sshd(8): Whitelist more architectures to enable the seccomp-bpf
   sandbox. bz#2590

 * ssh-agent(1), sftp-server(8): Disable process tracing on Solaris
   using setpflags(__PROC_PROTECT, ...). bz#2584

 * sshd(8): On Solaris, don't call Solaris setproject() with
   UsePAM=yes it's PAM's responsibility. bz#2425

Checksums:
==========

 - SHA1 (openssh-7.3.tar.gz) = b1641e5265d9ec68a9a19decc3a7edd1203cbd33
 - SHA256 (openssh-7.3.tar.gz) = vS0X35qrX9OOPBkyDMYhOje/DBwHBVEV7nv5rkzw4vM=

 - SHA1 (openssh-7.3p1.tar.gz) = bfade84283fcba885e2084343ab19a08c7d123a5
 - SHA256 (openssh-7.3p1.tar.gz) = P/uYmm3KppWUw7VQ1IVaWi4XGMzd5/XjY4e0JCIPvsw=

Please note that the SHA256 signatures are base64 encoded and not
hexadecimal (which is the default for most checksum tools). The PGP
key used to sign the releases is available as RELEASE_KEY.asc from
the mirror sites.

Reporting Bugs:
===============

- Please read http://www.openssh.com/report.html
  Security bugs should be reported directly to openssh@openssh.com

OpenSSH is brought to you by Markus Friedl, Niels Provos, Theo de
Raadt, Kevin Steves, Damien Miller, Darren Tucker, Jason McIntyre,
Tim Rice and Ben Lindstrom.

Revision 1.6 / (download) - annotate - [select for diffs], Fri Jul 3 00:59:59 2015 UTC (7 years, 7 months ago) by christos
Branch: MAIN
CVS Tags: pgoyette-localcount-base, pgoyette-localcount-20160726
Branch point for: pgoyette-localcount
Changes since 1.5: +2 -2 lines
Diff to previous 1.5 (colored)

merge conflicts

Revision 1.1.1.5 / (download) - annotate - [select for diffs] (vendor branch), Fri Jul 3 00:54:41 2015 UTC (7 years, 7 months ago) by christos
Branch: OPENSSH
CVS Tags: v72-20160310, v71-20150821, v70-20150812, v69-20150630
Changes since 1.1.1.4: +2 -2 lines
Diff to previous 1.1.1.4 (colored)

Changes since OpenSSH 6.8
=========================

This is primarily a bugfix release.

Security
--------

 * 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. This problem was reported by Jann Horn.

 * 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.

New Features
------------

 * ssh(1), sshd(8): promote chacha20-poly1305@openssh.com to be the
   default cipher

 * sshd(8): support admin-specified arguments to AuthorizedKeysCommand;
   bz#2081

 * 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 bz#2240

 * sshd(8): allow GSSAPI host credential check to be relaxed for
   multihomed hosts via GSSAPIStrictAcceptorCheck option; bz#928

 * 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; bz#2381

Bugfixes
--------

 * 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).

 * Many fixes for problems caused by compile-time deactivation of
   SSH1 support (including bz#2369)

 * 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; bz#2209

 * ssh(1): fix out-of-bound read in EscapeChar configuration option
   parsing; bz#2396

 * sshd(8): fix application of PermitTunnel, LoginGraceTime,
   AuthenticationMethods and StreamLocalBindMask options in Match
   blocks

 * ssh(1), sshd(8): improve disconnection message on TCP reset;
   bz#2257

 * ssh(1): remove failed remote forwards established by muliplexing
   from the list of active forwards; bz#2363

 * sshd(8): make parsing of authorized_keys "environment=" options
   independent of PermitUserEnv being enabled; bz#2329

 * sshd(8): fix post-auth crash with permitopen=none; bz#2355

 * ssh(1), ssh-add(1), ssh-keygen(1): allow new-format private keys
   to be encrypted with AEAD ciphers; bz#2366

 * ssh(1): allow ListenAddress, Port and AddressFamily configuration
   options to appear in any order; bz#86

 * sshd(8): check for and reject missing arguments for VersionAddendum
   and ForceCommand; bz#2281

 * ssh(1), sshd(8): don't treat unknown certificate extensions as
   fatal; bz#2387

 * ssh-keygen(1): make stdout and stderr output consistent; bz#2325

 * ssh(1): mention missing DISPLAY environment in debug log when X11
   forwarding requested; bz#1682

 * sshd(8): correctly record login when UseLogin is set; bz#378

 * sshd(8): Add some missing options to sshd -T output and fix output
   of VersionAddendum and HostCertificate. bz#2346

 * Document and improve consistency of options that accept a "none"
   argument" TrustedUserCAKeys, RevokedKeys (bz#2382),
   AuthorizedPrincipalsFile (bz#2288)

 * ssh(1): include remote username in debug output; bz#2368

 * sshd(8): avoid compatibility problem with some versions of Tera
   Term, which would crash when they received the hostkeys notification
   message (hostkeys-00@openssh.com)

 * sshd(8): mention ssh-keygen -E as useful when comparing legacy MD5
   host key fingerprints; bz#2332

 * ssh(1): clarify pseudo-terminal request behaviour and use make
   manual language consistent; bz#1716

 * ssh(1): document that the TERM environment variable is not subject
   to SendEnv and AcceptEnv; bz#2386

Revision 1.5 / (download) - annotate - [select for diffs], Fri Apr 3 23:58:19 2015 UTC (7 years, 10 months ago) by christos
Branch: MAIN
Changes since 1.4: +0 -0 lines
Diff to previous 1.4 (colored)

Merge conflicts

Revision 1.4 / (download) - annotate - [select for diffs], Sun Oct 19 16:30:58 2014 UTC (8 years, 3 months ago) by christos
Branch: MAIN
Changes since 1.3: +0 -0 lines
Diff to previous 1.3 (colored)

merge openssh-6.7

Revision 1.2.2.1 / (download) - annotate - [select for diffs], Thu May 22 13:21:34 2014 UTC (8 years, 8 months ago) by yamt
Branch: yamt-pagecache
Changes since 1.2: +2 -2 lines
Diff to previous 1.2 (colored) next main 1.3 (colored)

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

Revision 1.2.8.1 / (download) - annotate - [select for diffs], Sun Jun 23 06:26:14 2013 UTC (9 years, 7 months ago) by tls
Branch: tls-maxphys
Changes since 1.2: +2 -2 lines
Diff to previous 1.2 (colored) next main 1.3 (colored)

resync from head

Revision 1.3 / (download) - annotate - [select for diffs], Fri Mar 29 16:19:44 2013 UTC (9 years, 10 months ago) by christos
Branch: MAIN
CVS Tags: yamt-pagecache-base9, tls-maxphys-base, tls-earlyentropy-base, tls-earlyentropy, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, khorben-n900
Changes since 1.2: +3 -3 lines
Diff to previous 1.2 (colored)

welcome to openssh-6.2

Revision 1.1.1.4 / (download) - annotate - [select for diffs] (vendor branch), Fri Mar 29 14:52:38 2013 UTC (9 years, 10 months ago) by christos
Branch: OPENSSH
CVS Tags: v68-20150318, v67-20141018, v64-20131107, v62-20130321
Changes since 1.1.1.3: +2 -2 lines
Diff to previous 1.1.1.3 (colored)

from openbsd

Revision 1.2 / (download) - annotate - [select for diffs], Mon Jul 25 03:03:10 2011 UTC (11 years, 6 months ago) by christos
Branch: MAIN
CVS Tags: yamt-pagecache-tag8, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, agc-symver-base, agc-symver
Branch point for: yamt-pagecache, tls-maxphys, netbsd-6-1, netbsd-6-0, netbsd-6
Changes since 1.1: +56 -11 lines
Diff to previous 1.1 (colored)

- Merge conflicts
- WARNS=5

Revision 1.1.1.3 / (download) - annotate - [select for diffs] (vendor branch), Sun Jul 24 15:08:11 2011 UTC (11 years, 6 months ago) by christos
Branch: OPENSSH
CVS Tags: v61-20120828, v60-20120421, v59-20110906, v58-20110724
Changes since 1.1.1.2: +33 -11 lines
Diff to previous 1.1.1.2 (colored)

from ftp.openbsd.org

Revision 1.1.1.2 / (download) - annotate - [select for diffs] (vendor branch), Sun Nov 21 17:05:52 2010 UTC (12 years, 2 months ago) by adam
Branch: OPENSSH
CVS Tags: v56-20101121, matt-mips64-premerge-20101231, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2
Changes since 1.1.1.1: +23 -1 lines
Diff to previous 1.1.1.1 (colored)

Imported openssh-5.6

Revision 1.1.1.1 / (download) - annotate - [select for diffs] (vendor branch), Sun Jun 7 22:19:00 2009 UTC (13 years, 8 months ago) by christos
Branch: OPENSSH
CVS Tags: v53-20091226, v52-20090607, matt-premerge-20091211
Changes since 1.1: +0 -0 lines
Diff to previous 1.1 (colored)

import 5.2 from ftp.openbsd.org

Revision 1.1 / (download) - annotate - [select for diffs], Sun Jun 7 22:19:00 2009 UTC (13 years, 8 months ago) by christos
Branch: MAIN

Initial revision

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