FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=stable%2F13 2025-02-20T17:56:23Z 2025-02-20T17:56:23Z Ed Maste emaste@FreeBSD.org 2025-02-19T17:20:44Z urn:sha1:c845ae475579d9b38cd1e3061f3896b44d1cb172 Highlights from the release notes are reproduced below. Some security and bug fixes were previously merged into FreeBSD and have been elided. See the upstream release notes for full details (https://www.openssh.com/releasenotes.html). --- Future deprecation notice ========================= OpenSSH plans to remove support for the DSA signature algorithm in early 2025. Potentially-incompatible changes -------------------------------- * sshd(8): the server will now block client addresses that repeatedly fail authentication, repeatedly connect without ever completing authentication or that crash the server. See the discussion of PerSourcePenalties below for more information. Operators of servers that accept connections from many users, or servers that accept connections from addresses behind NAT or proxies may need to consider these settings. * sshd(8): the server has been split into a listener binary, sshd(8), and a per-session binary "sshd-session". This allows for a much smaller listener binary, as it no longer needs to support the SSH protocol. As part of this work, support for disabling privilege separation (which previously required code changes to disable) and disabling re-execution of sshd(8) has been removed. Further separation of sshd-session into additional, minimal binaries is planned for the future. * sshd(8): several log messages have changed. In particular, some log messages will be tagged with as originating from a process named "sshd-session" rather than "sshd". * ssh-keyscan(1): this tool previously emitted comment lines containing the hostname and SSH protocol banner to standard error. This release now emits them to standard output, but adds a new "-q" flag to silence them altogether. * sshd(8): (portable OpenSSH only) sshd will no longer use argv[0] as the PAM service name. A new "PAMServiceName" sshd_config(5) directive allows selecting the service name at runtime. This defaults to "sshd". bz2101 New features ------------ * sshd(8): sshd(8) will now penalise client addresses that, for various reasons, do not successfully complete authentication. This feature is controlled by a new sshd_config(5) PerSourcePenalties option and is on by default. * ssh(8): allow the HostkeyAlgorithms directive to disable the implicit fallback from certificate host key to plain host keys. Portability ----------- * sshd(8): expose SSH_AUTH_INFO_0 always to PAM auth modules unconditionally. The previous behaviour was to expose it only when particular authentication methods were in use. * ssh(1), ssh-agent(8): allow the presence of the WAYLAND_DISPLAY environment variable to enable SSH_ASKPASS, similarly to the X11 DISPLAY environment variable. GHPR479 --- Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D48914 (cherry picked from commit 0fdf8fae8b569bf9fff3b5171e669dcd7cf9c79e) (cherry picked from commit b4bb480ae9294d7e4b375f0ead9ae57517c79ef3) (cherry picked from commit e95979047aec384852102cf8bb1d55278ea77eeb) (cherry picked from commit dcb4ae528d357f34e4a4b4882c2757c67c98e395) Approved by: re (accelerated MFC) (cherry picked from commit ff2fd01609cc10bcdc87ebe4de42efaf7ffe2ee9) 2025-02-20T13:21:02Z Ed Maste emaste@FreeBSD.org 2025-02-09T20:37:24Z urn:sha1:10e9add50f9358b6b74e1d481b270ba32f3e85da XAUTH_PATH is normally set (in the upstream build infrastructure) in config.h. We previously set it in ssh and sshd's Makefiles if LOCALBASE is set, and over time have sometimes also defined it in config.h. Leave it unset in config.h and move the CFLAGS logic to to ssh.mk so that it will be set when building all ssh libraries and programs but still be set by LOCALBASE. Reviewed by: jlduran Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D48907 (cherry picked from commit a63701848fe5462c4e8bbff0131bb42979e603ec) (cherry picked from commit 73dd56ffcd7b2c46de58980ac888c0421e3ec0b6) 2023-08-23T17:43:30Z Warner Losh imp@FreeBSD.org 2023-08-22T01:32:01Z urn:sha1:023fc80ee38a117fa65b2ccb2abf8bdc7dbd6fd9 Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/ Similar commit in main: (cherry picked from commit d0b2dbfa0ecf) 2022-10-26T16:42:37Z Ed Maste emaste@FreeBSD.org 2022-10-19T14:27:11Z urn:sha1:75f9d5c7e36b452f4f76356dfeb8bba51d64e51b Release notes are available at https://www.openssh.com/txt/release-9.1 9.1 contains fixes for three minor memory safety problems; these have lready been merged to the copy of OpenSSH 9.0 that is in the FreeBSD base system. Some highlights copied from the release notes: Potentially-incompatible changes -------------------------------- * 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). * 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 MFC after: 2 weeks Relnotes: Yes Sponsored by: The FreeBSD Foundation (cherry picked from commit 38a52bd3b5cac3da6f7f6eef3dd050e6aa08ebb3) 2022-10-07T01:39:00Z Ed Maste emaste@FreeBSD.org 2022-04-13T20:00:56Z urn:sha1:6ac1039d047aafcaae5fec13504ece8fdc764c5a Release notes are available at https://www.openssh.com/txt/release-8.9 Some highlights: * 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 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. * 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. 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. MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation (cherry picked from commit 1323ec571215a77ddd21294f0871979d5ad6b992) (cherry picked from commit 58def461e256e3a05c3ff15a87ed702fe0c3662c) 2022-02-09T19:53:11Z Ed Maste emaste@FreeBSD.org 2021-09-08T01:05:51Z urn:sha1:317a38ab65334cbd24bd020b20b11041423d142f Some notable changes, from upstream's release notes: - sshd(8): Remove support for obsolete "host/port" syntax. - ssh(1): When prompting whether to record a new host key, accept the key fingerprint as a synonym for "yes". - ssh-keygen(1): when acting as a CA and signing certificates with an RSA key, default to using the rsa-sha2-512 signature algorithm. - ssh(1), sshd(8), ssh-keygen(1): this release removes the "ssh-rsa" (RSA/SHA1) algorithm from those accepted for certificate signatures. - ssh-sk-helper(8): this is a new binary. It is used by the FIDO/U2F support to provide address-space isolation for token middleware libraries (including the internal one). - ssh(1): this release enables UpdateHostkeys by default subject to some conservative preconditions. - 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. - scp(1): experimental support for transfers using the SFTP protocol as a replacement for the venerable SCP/RCP protocol that it has traditionally used. Additional integration work is needed to support FIDO/U2F in the base system. Deprecation Notice ------------------ OpenSSH will disable the ssh-rsa signature scheme by default in the next release. Reviewed by: imp MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D29985 (cherry picked from commit 19261079b74319502c6ffa1249920079f0f69a72) (cherry picked from commit f448c3ed4ae1281861913a56377f9d93d49f8e8e) (cherry picked from commit 1f290c707a19d1695c303e6c8ead9cc414ccc6dc) (cherry picked from commit 0f9bafdfc325779e4ecc5154d5bb06c752297138) (cherry picked from commit adb56e58e8db84d8087ebe3d3e7def0074cb5a90) (cherry picked from commit 576b58108c1723c85e4dd00355e29bfe301dab11) (cherry picked from commit 1c99af1ebe61cbaf633792941640dcd254acf921) (cherry picked from commit 87152f34054921632016bc5eb4ab9f836fbaa522) (cherry picked from commit 172fa4aa7577915bf5ace5783251821d3774dc05) 2021-11-08T21:24:09Z Ed Maste emaste@FreeBSD.org 2021-11-02T18:48:33Z urn:sha1:a0880129a545dbb7ff35b456429b12e55146ef5d This moves SSHDIR and ssh_namespace.h handling to a common location, and will simplify future work such as adding U2F support (D32509). Reviewed by: kevans MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D32808 (cherry picked from commit 9d63429fa16352f58037ac2aa6ddc734b25e8331) 2019-12-11T17:37:53Z Simon J. Gerraty sjg@FreeBSD.org 2019-12-11T17:37:53Z urn:sha1:2c9a9dfc187d171de6b92654d71b977f067ed641 Update a bunch of Makefile.depend files as a result of adding Makefile.depend.options files Reviewed by: bdrewery MFC after: 1 week Sponsored by: Juniper Networks Differential Revision: https://reviews.freebsd.org/D22494 2019-12-11T17:37:37Z Simon J. Gerraty sjg@FreeBSD.org 2019-12-11T17:37:37Z urn:sha1:5ab1c5846ff41be24b1f6beb0317bf8258cd4409 Leaf directories that have dependencies impacted by options need a Makefile.depend.options file to avoid churn in Makefile.depend DIRDEPS for cases such as OPENSSL, TCP_WRAPPERS etc can be set in local.dirdeps-options.mk which can add to those set in Makefile.depend.options See share/mk/dirdeps-options.mk Reviewed by: bdrewery MFC after: 1 week Sponsored by: Juniper Networks Differential Revision: https://reviews.freebsd.org/D22469 2018-09-10T16:20:12Z Dag-Erling Smørgrav des@FreeBSD.org 2018-09-10T16:20:12Z urn:sha1:190cef3d52236565eb22e18b33e9e865ec634aa3 Approved by: re (kib@)