| Patch | Description | Author | Forwarded | Bugs | Origin | Last update |
|---|---|---|---|---|---|---|
| gssapi.patch | GSSAPI key exchange support This patch has been rejected upstream: "None of the OpenSSH developers are in favour of adding this, and this situation has not changed for several years. This is not a slight on Simon's patch, which is of fine quality, but just that a) we don't trust GSSAPI implementations that much and b) we don't like adding new KEX since they are pre-auth attack surface. This one is particularly scary, since it requires hooks out to typically root-owned system resources." However, quite a lot of people rely on this in Debian, and it's better to have it merged into the main openssh package rather than having separate -krb5 packages (as we used to have). It seems to have a generally good security history. |
Jakub Jelen <jjelen@redhat.com> | yes | upstream | other, https://github.com/openssh-gsskex/openssh-gsskex/pull/23 | 2014-02-09 |
| restore-tcp-wrappers.patch | Restore TCP wrappers support Support for TCP wrappers was dropped in OpenSSH 6.7. See this message and thread: https://lists.mindrot.org/pipermail/openssh-unix-dev/2014-April/032497.html It is true that this reduces preauth attack surface in sshd. On the other hand, this support seems to be quite widely used, and abruptly dropping it (from the perspective of users who don't read openssh-unix-dev) could easily cause more serious problems in practice. It's not entirely clear what the right long-term answer for Debian is, but it at least probably doesn't involve dropping this feature shortly before a freeze. |
Colin Watson <cjwatson@debian.org> | not-needed | 2024-08-02 | ||
| selinux-role.patch | Handle SELinux authorisation roles Rejected upstream due to discomfort with magic usernames; a better approach will need an SSH protocol change. In the meantime, this came from Debian's SELinux maintainer, so we'll keep it until we have something better. |
Manoj Srivastava <srivasta@debian.org> | yes | debian upstream | 2024-07-03 | |
| ssh-vulnkey-compat.patch | Accept obsolete ssh-vulnkey configuration options These options were used as part of Debian's response to CVE-2008-0166. Nearly six years later, we no longer need to continue carrying the bulk of that patch, but we do need to avoid failing when the associated configuration options are still present. |
Colin Watson <cjwatson@ubuntu.com> | no | 2014-02-09 | ||
| keepalive-extensions.patch | Various keepalive extensions Add compatibility aliases for ProtocolKeepAlives and SetupTimeOut, supported in previous versions of Debian's OpenSSH package but since superseded by ServerAliveInterval. (We're probably stuck with this bit for compatibility.) In batch mode, default ServerAliveInterval to five minutes. Adjust documentation to match and to give some more advice on use of keepalives. |
Colin Watson <cjwatson@debian.org> | no | 2024-09-13 | ||
| syslog-level-silent.patch | "LogLevel SILENT" compatibility "LogLevel SILENT" (-qq) was introduced in Debian openssh 1:3.0.1p1-1 to match the behaviour of non-free SSH, in which -q does not suppress fatal errors. However, this was unintentionally broken in 1:4.6p1-2 and nobody complained, so we've dropped most of it. The parts that remain are basic configuration file compatibility, and an adjustment to "Pseudo-terminal will not be allocated ..." which should be split out into a separate patch. |
Colin Watson <cjwatson@debian.org> | no | 2013-09-14 | ||
| user-group-modes.patch | Allow harmless group-writability Allow secure files (~/.ssh/config, ~/.ssh/authorized_keys, etc.) to be group-writable, provided that the group in question contains only the file's owner. Rejected upstream for IMO incorrect reasons (e.g. a misunderstanding about the contents of gr->gr_mem). Given that per-user groups and umask 002 are the default setup in Debian (for good reasons - this makes operating in setgid directories with other groups much easier), we need to permit this by default. |
Colin Watson <cjwatson@debian.org> | yes | debian upstream | 2022-02-23 | |
| scp-quoting.patch | Adjust scp quoting in verbose mode Tweak scp's reporting of filenames in verbose mode to be a bit less confusing with spaces. This should be revised to mimic real shell quoting. |
=?UTF-8?q?Nicolas=20Valc=C3=A1rcel?= <nvalcarcel@ubuntu.com> | no | 2010-02-27 | ||
| shell-path.patch | Look for $SHELL on the path for ProxyCommand/LocalCommand There's some debate on the upstream bug about whether POSIX requires this. I (Colin Watson) agree with Vincent and think it does. |
Colin Watson <cjwatson@debian.org> | yes | debian upstream | 2020-02-21 | |
| dnssec-sshfp.patch | Force use of DNSSEC even if "options edns0" isn't in resolv.conf This allows SSHFP DNS records to be verified if glibc 2.11 is installed. |
Colin Watson <cjwatson@debian.org> | invalid | debian upstream | vendor, https://cvs.fedoraproject.org/viewvc/F-12/openssh/openssh-5.2p1-edns.patch?revision=1.1&view=markup | 2023-06-19 |
| mention-ssh-keygen-on-keychange.patch | Mention ssh-keygen in ssh fingerprint changed warning | Chris Lamb <lamby@debian.org> | yes | upstream | 2023-12-11 | |
| package-versioning.patch | Include the Debian version in our identification This makes it easier to audit networks for versions patched against security vulnerabilities. It has little detrimental effect, as attackers will generally just try attacks rather than bothering to scan for vulnerable-looking version strings. (However, see debian-banner.patch.) |
Matthew Vernon <matthew@debian.org> | not-needed | 2023-12-18 | ||
| debian-banner.patch | Add DebianBanner server configuration option Setting this to "no" causes sshd to omit the Debian revision from its initial protocol handshake, for those scared by package-versioning.patch. |
Kees Cook <kees@debian.org> | not-needed | debian | 2024-09-22 | |
| authorized-keys-man-symlink.patch | Install authorized_keys(5) as a symlink to sshd(8) | Tomas Pospisek <tpo_deb@sourcepole.ch> | yes | debian upstream | 2013-09-14 | |
| openbsd-docs.patch | Adjust various OpenBSD-specific references in manual pages No single bug reference for this patch, but history includes: https://bugs.debian.org/154434 (login.conf(5)) https://bugs.debian.org/513417 (/etc/rc) https://bugs.debian.org/998069 (rdomain(4)) |
Colin Watson <cjwatson@debian.org> | not-needed | 2024-07-03 | ||
| ssh-argv0.patch | ssh(1): Refer to ssh-argv0(1) Old versions of OpenSSH (up to 2.5 or thereabouts) allowed creating symlinks to ssh with the name of the host you want to connect to. Debian ships an ssh-argv0 script restoring this feature; this patch refers to its manual page from ssh(1). |
Colin Watson <cjwatson@debian.org> | not-needed | debian | 2013-09-14 | |
| doc-hash-tab-completion.patch | Document that HashKnownHosts may break tab-completion | Colin Watson <cjwatson@debian.org> | yes | debian upstream | 2021-11-05 | |
| ssh-agent-setgid.patch | Document consequences of ssh-agent being setgid in ssh-agent(1) | Colin Watson <cjwatson@debian.org> | no | debian | 2020-02-21 | |
| no-openssl-version-status.patch | Don't check the status field of the OpenSSL version There is no reason to check the version of OpenSSL (in Debian). If it's not compatible the soname will change. OpenSSH seems to want to do a check for the soname based on the version number, but wants to keep the status of the release the same. Remove that check on the status since it doesn't tell you anything about how compatible that version is. |
Colin Watson <cjwatson@debian.org> | not-needed | debian | 2023-09-02 | |
| gnome-ssh-askpass2-icon.patch | Give the ssh-askpass-gnome window a default icon | Vincent Untz <vuntz@ubuntu.com> | no | 2010-02-28 | ||
| debian-config.patch | Various Debian-specific configuration changes fewer problems with existing setups (http://bugs.debian.org/237021). worms. PrintMotd. Document all of this. |
Russ Allbery <rra@debian.org> | not-needed | 2024-07-03 | ||
| restore-authorized_keys2.patch | Restore reading authorized_keys2 by default Upstream seems to intend to gradually phase this out, so don't assume that this will remain the default forever. However, we were late in adopting the upstream sshd_config changes, so it makes sense to extend the grace period. |
Colin Watson <cjwatson@debian.org> | not-needed | debian | 2017-03-05 | |
| revert-ipqos-defaults.patch | Revert "upstream: Update default IPQoS in ssh(1), sshd(8) to DSCP AF21 for" This reverts commit 5ee8448ad7c306f05a9f56769f95336a8269f379. The IPQoS default changes have some unfortunate interactions with iptables (see https://bugs.debian.org/923880) and VMware, so I'm temporarily reverting them until those have been fixed. |
Colin Watson <cjwatson@debian.org> | no | debian | 2019-04-08 | |
| systemd-socket-activation.patch | Support systemd socket activation Unlike inetd socket activation, with systemd socket activation the supervisor passes the listened-on socket to the child process and lets the child process handle the accept(). This lets us do delayed start of the sshd daemon without becoming incompatible with config options like ClientAliveCountMax. |
Colin Watson <cjwatson@debian.org> | no | 2024-08-02 | ||
| skip-utimensat-test-on-zfs.patch | Skip utimensat test on ZFS On ZFS (which may be used by e.g. `autopkgtest-virt-incus`), `utimensat` seems to leave the access time set to 0. It's not clear why. |
Colin Watson <cjwatson@debian.org> | no | 2024-03-11 | ||
| regress-conch-dev-zero.patch | regress: Redirect conch stdin from /dev/zero This is more convenient than requiring a controlling terminal. |
Colin Watson <cjwatson@debian.org> | yes | 2024-03-31 | ||
| configure-cache-vars.patch | Add Autoconf cache variables for OSSH_CHECK_*FLAG_* This allows overriding them on configure's command line in case the automatic checks go wrong somehow. bz#3673 |
Colin Watson <cjwatson@debian.org> | yes | 2024-04-03 | ||
| pam-avoid-unknown-host.patch | Only set PAM_RHOST if the remote host is not "UNKNOWN" When using sshd's -i option with stdio that is not a AF_INET/AF_INET6 socket, auth_get_canonical_hostname() returns "UNKNOWN" which is then set as the value of PAM_RHOST, causing pam to try to do a reverse DNS query of "UNKNOWN", which times out multiple times, causing a substantial slowdown when logging in. To fix this, let's only set PAM_RHOST if the hostname is not "UNKNOWN". |
Daan De Meyer <daan.j.demeyer@gmail.com> | no | 2024-04-03 | ||
| mlkem768x25519-big-endian-1.patch | upstream: fix ML-KEM768x25519 KEX on big-endian systems; spotted by jsg@ feedback/ok deraadt@ |
"djm@openbsd.org" <djm@openbsd.org> | no | upstream, https://anongit.mindrot.org/openssh.git/commit/?h=V_9_9&id=11f348196b3fb51c3d8d1f4f36db9d73f03149ed | 2024-10-27 | |
| mlkem768x25519-big-endian-2.patch | upstream: explicitly include endian.h | "djm@openbsd.org" <djm@openbsd.org> | no | upstream, https://anongit.mindrot.org/openssh.git/commit/?h=V_9_9&id=fe8d28a7ebbaa35cfc04a21263627f05c237e460 | 2024-10-27 |