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2015-08-19Backport PAM security fixes.Colin Watson
- sshd(8): Fixed a privilege separation weakness related to PAM support. Attackers who could successfully compromise the pre-authentication process for remote code execution and who had valid credentials on the host could impersonate other users. Reported by Moritz Jodeit. - sshd(8): Fixed a use-after-free bug related to PAM support that was reachable by attackers who could compromise the pre-authentication process for remote code execution (closes: #795711). Also reported by Moritz Jodeit.
2015-08-19set sshpam_ctxt to NULL after freeDamien Miller
Avoids use-after-free in monitor when privsep child is compromised. Reported by Moritz Jodeit; ok dtucker@ Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=5e75f5198769056089fb06c4d738ab0e5abc66f7 Forwarded: not-needed Last-Update: 2015-08-19 Patch-Name: backport-pam-use-after-free.patch
2015-08-19Don't resend username to PAM; it already has it.Damien Miller
Pointed out by Moritz Jodeit; ok dtucker@ Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=d4697fe9a28dab7255c60433e4dd23cf7fce8a8b Forwarded: not-needed Last-Update: 2015-08-19 Patch-Name: backport-do-not-resend-username-to-pam.patch
2015-08-19Fill in CVE-2015-5352 identifier and close #790798.Colin Watson
2015-08-19SECURITY: sshd(8): OpenSSH 6.8 and 6.9 incorrectly set TTYs to be ↵Colin Watson
world-writable. Local attackers may be able to write arbitrary messages to logged-in users, including terminal escape sequences. Reported by Nikolay Edigaryev.
2015-08-19Fix pty permissionsdjm@openbsd.org
Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=6f941396b6835ad18018845f515b0c4fe20be21a Forwarded: not-needed Last-Update: 2015-08-19 Patch-Name: backport-fix-pty-permissions.patch
2015-08-19New upstream release (6.9p1).Colin Watson
2015-08-19Various Debian-specific configuration changesColin Watson
ssh: Enable ForwardX11Trusted, returning to earlier semantics which cause fewer problems with existing setups (http://bugs.debian.org/237021). ssh: Set 'SendEnv LANG LC_*' by default (http://bugs.debian.org/264024). ssh: Enable HashKnownHosts by default to try to limit the spread of ssh worms. ssh: Enable GSSAPIAuthentication and disable GSSAPIDelegateCredentials by default. sshd: Refer to /usr/share/doc/openssh-server/README.Debian.gz alongside PermitRootLogin default. Document all of this, along with several sshd defaults set in debian/openssh-server.postinst. Author: Russ Allbery <rra@debian.org> Forwarded: not-needed Last-Update: 2015-08-19 Patch-Name: debian-config.patch
2015-08-19Support synchronisation with service supervisor using SIGSTOPColin Watson
Author: Robie Basak <robie.basak@ubuntu.com> Forwarded: no Last-Update: 2014-04-14 Patch-Name: sigstop.patch
2015-08-19Give the ssh-askpass-gnome window a default iconVincent Untz
Bug-Ubuntu: https://bugs.launchpad.net/bugs/27152 Last-Update: 2010-02-28 Patch-Name: gnome-ssh-askpass2-icon.patch
2015-08-19Don't check the status field of the OpenSSL versionKurt Roeckx
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. Author: Colin Watson <cjwatson@debian.org> Bug-Debian: https://bugs.debian.org/93581 Bug-Debian: https://bugs.debian.org/664383 Bug-Debian: https://bugs.debian.org/732940 Forwarded: not-needed Last-Update: 2014-10-07 Patch-Name: no-openssl-version-status.patch
2015-08-19Document consequences of ssh-agent being setgid in ssh-agent(1)Colin Watson
Bug-Debian: http://bugs.debian.org/711623 Forwarded: no Last-Update: 2013-06-08 Patch-Name: ssh-agent-setgid.patch
2015-08-19Refer to ssh's Upstart job as well as its init scriptColin Watson
Forwarded: not-needed Last-Update: 2013-09-14 Patch-Name: doc-upstart.patch
2015-08-19Document that HashKnownHosts may break tab-completionColin Watson
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1727 Bug-Debian: http://bugs.debian.org/430154 Last-Update: 2013-09-14 Patch-Name: doc-hash-tab-completion.patch
2015-08-19ssh(1): Refer to ssh-argv0(1)Colin Watson
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). Bug-Debian: http://bugs.debian.org/111341 Forwarded: not-needed Last-Update: 2013-09-14 Patch-Name: ssh-argv0.patch
2015-08-19Adjust various OpenBSD-specific references in manual pagesColin Watson
No single bug reference for this patch, but history includes: http://bugs.debian.org/154434 (login.conf(5)) http://bugs.debian.org/513417 (/etc/rc) http://bugs.debian.org/530692 (ssl(8)) https://bugs.launchpad.net/bugs/456660 (ssl(8)) Forwarded: not-needed Last-Update: 2014-10-07 Patch-Name: openbsd-docs.patch
2015-08-19Fix picky lintian errors about slogin symlinksColin Watson
Apparently this breaks some SVR4 packaging systems, so upstream can't win either way and opted to keep the status quo. We need this patch anyway. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1728 Last-Update: 2013-09-14 Patch-Name: lintian-symlink-pickiness.patch
2015-08-19Install authorized_keys(5) as a symlink to sshd(8)Tomas Pospisek
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1720 Bug-Debian: http://bugs.debian.org/441817 Last-Update: 2013-09-14 Patch-Name: authorized-keys-man-symlink.patch
2015-08-19Add DebianBanner server configuration optionKees Cook
Setting this to "no" causes sshd to omit the Debian revision from its initial protocol handshake, for those scared by package-versioning.patch. Bug-Debian: http://bugs.debian.org/562048 Forwarded: not-needed Last-Update: 2015-08-19 Patch-Name: debian-banner.patch
2015-08-19Include the Debian version in our identificationMatthew Vernon
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.) Forwarded: not-needed Last-Update: 2013-09-14 Patch-Name: package-versioning.patch
2015-08-19Mention ssh-keygen in ssh fingerprint changed warningScott Moser
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1843 Bug-Ubuntu: https://bugs.launchpad.net/bugs/686607 Last-Update: 2013-09-14 Patch-Name: mention-ssh-keygen-on-keychange.patch
2015-08-19Quieten logs when multiple from= restrictions are usedColin Watson
Bug-Debian: http://bugs.debian.org/630606 Forwarded: no Last-Update: 2013-09-14 Patch-Name: auth-log-verbosity.patch
2015-08-19Force use of DNSSEC even if "options edns0" isn't in resolv.confColin Watson
This allows SSHFP DNS records to be verified if glibc 2.11 is installed. Origin: vendor, https://cvs.fedoraproject.org/viewvc/F-12/openssh/openssh-5.2p1-edns.patch?revision=1.1&view=markup Bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=572049 Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=572049 Last-Update: 2010-04-06 Patch-Name: dnssec-sshfp.patch
2015-08-19Look for $SHELL on the path for ProxyCommand/LocalCommandColin Watson
There's some debate on the upstream bug about whether POSIX requires this. I (Colin Watson) agree with Vincent and think it does. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1494 Bug-Debian: http://bugs.debian.org/492728 Last-Update: 2013-09-14 Patch-Name: shell-path.patch
2015-08-19Adjust scp quoting in verbose modeNicolas Valcárcel
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. Bug-Ubuntu: https://bugs.launchpad.net/bugs/89945 Last-Update: 2010-02-27 Patch-Name: scp-quoting.patch
2015-08-19Allow harmless group-writabilityColin Watson
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. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1060 Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=314347 Last-Update: 2013-09-14 Patch-Name: user-group-modes.patch
2015-08-19Add support for registering ConsoleKit sessions on loginColin Watson
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1450 Last-Updated: 2015-08-19 Patch-Name: consolekit.patch
2015-08-19Mention ~& when waiting for forwarded connections to terminateMatthew Vernon
Bug-Debian: http://bugs.debian.org/50308 Last-Update: 2010-02-27 Patch-Name: helpful-wait-terminate.patch
2015-08-19Reduce severity of "Killed by signal %d"Peter Samuelson
This produces irritating messages when using ProxyCommand or other programs that use ssh under the covers (e.g. Subversion). These messages are more normally printed by the calling program, such as the shell. According to the upstream bug, the right way to avoid this is to use the -q option, so we may drop this patch after further investigation into whether any software in Debian is still relying on it. Author: Colin Watson <cjwatson@debian.org> Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1118 Bug-Debian: http://bugs.debian.org/313371 Last-Update: 2013-09-14 Patch-Name: quieter-signals.patch
2015-08-19"LogLevel SILENT" compatibilityJonathan David Amery
"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. Author: Matthew Vernon <matthew@debian.org> Author: Colin Watson <cjwatson@debian.org> Last-Update: 2013-09-14 Patch-Name: syslog-level-silent.patch
2015-08-19Various keepalive extensionsRichard Kettlewell
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. Author: Ian Jackson <ian@chiark.greenend.org.uk> Author: Matthew Vernon <matthew@debian.org> Author: Colin Watson <cjwatson@debian.org> Last-Update: 2015-08-19 Patch-Name: keepalive-extensions.patch
2015-08-19Partial server keep-alive implementation for SSH1Colin Watson
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1712 Last-Update: 2013-09-14 Patch-Name: ssh1-keepalive.patch
2015-08-19Accept obsolete ssh-vulnkey configuration optionsColin Watson
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. Last-Update: 2014-02-09 Patch-Name: ssh-vulnkey-compat.patch
2015-08-19Handle SELinux authorisation rolesManoj Srivastava
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. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1641 Bug-Debian: http://bugs.debian.org/394795 Last-Update: 2015-08-19 Patch-Name: selinux-role.patch
2015-08-19Restore TCP wrappers supportColin Watson
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. Forwarded: not-needed Last-Update: 2014-10-07 Patch-Name: restore-tcp-wrappers.patch
2015-08-19GSSAPI key exchange supportSimon Wilkinson
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. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1242 Last-Updated: 2015-08-19 Patch-Name: gssapi.patch
2015-08-19Import openssh_6.9p1.orig.tar.gzColin Watson
2015-08-19Thanks to Jakub Jelen of Red Hat for Fedora's rebased version of the GSSAPI ↵Colin Watson
key exchange patch.
2015-08-19Fix incorrect version in most recent debian/NEWS entry.Colin Watson
2015-08-19New upstream release (6.8p1).Colin Watson
2015-08-19Various Debian-specific configuration changesColin Watson
ssh: Enable ForwardX11Trusted, returning to earlier semantics which cause fewer problems with existing setups (http://bugs.debian.org/237021). ssh: Set 'SendEnv LANG LC_*' by default (http://bugs.debian.org/264024). ssh: Enable HashKnownHosts by default to try to limit the spread of ssh worms. ssh: Enable GSSAPIAuthentication and disable GSSAPIDelegateCredentials by default. sshd: Refer to /usr/share/doc/openssh-server/README.Debian.gz alongside PermitRootLogin default. Document all of this, along with several sshd defaults set in debian/openssh-server.postinst. Author: Russ Allbery <rra@debian.org> Forwarded: not-needed Last-Update: 2015-08-19 Patch-Name: debian-config.patch
2015-08-19Support synchronisation with service supervisor using SIGSTOPColin Watson
Author: Robie Basak <robie.basak@ubuntu.com> Forwarded: no Last-Update: 2014-04-14 Patch-Name: sigstop.patch
2015-08-19Give the ssh-askpass-gnome window a default iconVincent Untz
Bug-Ubuntu: https://bugs.launchpad.net/bugs/27152 Last-Update: 2010-02-28 Patch-Name: gnome-ssh-askpass2-icon.patch
2015-08-19Don't check the status field of the OpenSSL versionKurt Roeckx
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. Author: Colin Watson <cjwatson@debian.org> Bug-Debian: https://bugs.debian.org/93581 Bug-Debian: https://bugs.debian.org/664383 Bug-Debian: https://bugs.debian.org/732940 Forwarded: not-needed Last-Update: 2014-10-07 Patch-Name: no-openssl-version-status.patch
2015-08-19Document consequences of ssh-agent being setgid in ssh-agent(1)Colin Watson
Bug-Debian: http://bugs.debian.org/711623 Forwarded: no Last-Update: 2013-06-08 Patch-Name: ssh-agent-setgid.patch
2015-08-19Refer to ssh's Upstart job as well as its init scriptColin Watson
Forwarded: not-needed Last-Update: 2013-09-14 Patch-Name: doc-upstart.patch
2015-08-19Document that HashKnownHosts may break tab-completionColin Watson
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1727 Bug-Debian: http://bugs.debian.org/430154 Last-Update: 2013-09-14 Patch-Name: doc-hash-tab-completion.patch
2015-08-19ssh(1): Refer to ssh-argv0(1)Colin Watson
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). Bug-Debian: http://bugs.debian.org/111341 Forwarded: not-needed Last-Update: 2013-09-14 Patch-Name: ssh-argv0.patch
2015-08-19Adjust various OpenBSD-specific references in manual pagesColin Watson
No single bug reference for this patch, but history includes: http://bugs.debian.org/154434 (login.conf(5)) http://bugs.debian.org/513417 (/etc/rc) http://bugs.debian.org/530692 (ssl(8)) https://bugs.launchpad.net/bugs/456660 (ssl(8)) Forwarded: not-needed Last-Update: 2014-10-07 Patch-Name: openbsd-docs.patch
2015-08-19Fix picky lintian errors about slogin symlinksColin Watson
Apparently this breaks some SVR4 packaging systems, so upstream can't win either way and opted to keep the status quo. We need this patch anyway. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1728 Last-Update: 2013-09-14 Patch-Name: lintian-symlink-pickiness.patch
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