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2016-07-29Add debian/agent-launch: Helper script for conditionally starting the SSH ↵Martin Pitt
agent in the user session Use it in ssh-agent.user-session.upstart. This will also be used in a corresponding systemd user unit. This replaces the backgrounded "ssh-agent -s" with a foreground task which works more nicely with modern init systems for logging/debugging and starting/stopping. Also use a fixed socket file name in $XDG_RUNTIME_DIR -- under both upstart and systemd we can assume this, and it allows restarting the service in a running session.
2016-07-29Stop enabling ssh-session-cleanup.service by default; instead, ship it as an ↵Colin Watson
example and add a section to README.Debian. libpam-systemd >= 230 and "UsePAM yes" should take care of the original problem for most systemd users (thanks, Michael Biebl; closes: #832155).
2016-07-28define _OPENBSD_SOURCE for reallocarray on NetBSDDamien Miller
Report by and debugged with Hisashi T Fujinaka, dtucker nailed the problem (lack of prototype causing return type confusion).
2016-07-27KNFDamien Miller
2016-07-27Linux auditing also needs packet.hDamien Miller
2016-07-27fix auditing on LinuxDamien Miller
get_remote_ipaddr() was replaced with ssh_remote_ipaddr()
2016-07-24crank version numbersDamien Miller
2016-07-24upstream commitdjm@openbsd.org
openssh-7.3 Upstream-ID: af106a7eb665f642648cf1993e162c899f358718
2016-07-23releasing package openssh version 1:7.2p2-7Colin Watson
2016-07-23Add note about upgrade problems.Colin Watson
2016-07-23Recommend libpam-systemd from openssh-server. It's a much better solution ↵Colin Watson
than the above for systemd users, but I'm wary of depending on it in case I cause an assortment of exciting dependency problems on upgrade for non-systemd users.
2016-07-23Don't stop the ssh-session-cleanup service on upgrade (closes: #832155).Colin Watson
2016-07-23Move Cygwin IPPORT_RESERVED overrride to defines.hDarren Tucker
Patch from vinschen at redhat.com.
2016-07-23upstream commitdjm@openbsd.org
fix pledge violation with ssh -f; reported by Valentin Kozamernik ok dtucker@ Upstream-ID: a61db7988db88d9dac3c4dd70e18876a8edf84aa
2016-07-23upstream commitdjm@openbsd.org
improve wording; suggested by jmc@ Upstream-ID: 55cb0a24c8e0618b3ceec80998dc82c85db2d2f8
2016-07-23upstream commitdtucker@openbsd.org
Lower loglevel for "Authenticated with partial success" message similar to other similar level. bz#2599, patch from cgallek at gmail.com, ok markus@ Upstream-ID: 3faab814e947dc7b2e292edede23e94c608cb4dd
2016-07-22releasing package openssh version 1:7.2p2-6Colin Watson
2016-07-22Fix typo.Colin Watson
2016-07-22Stop generating DSA host keys by default (thanks, Santiago Vila; closes: ↵Colin Watson
#823827).
2016-07-22Add a session cleanup script and a systemd unit file to trigger it, which ↵Colin Watson
serves to terminate SSH sessions cleanly if systemd doesn't do that itself, often because libpam-systemd is not installed (thanks, Vivek Das Mohapatra, Tom Hutter, and others; closes: #751636).
2016-07-22Backport upstream patch to close ControlPersist background process stderr ↵Colin Watson
when not in debug mode or when logging to a file or syslog (closes: #714526).
2016-07-22upstream commitdjm@openbsd.org
close ControlPersist background process stderr when not in debug mode or when logging to a file or syslog. bz#1988 ok dtucker Upstream-ID: 4fb726f0fdcb155ad419913cea10dc4afd409d24 Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=d2d6bf864e52af8491a60dd507f85b74361f5da3 Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1988 Bug-Debian: https://bugs.debian.org/714526 Last-Update: 2016-07-22 Patch-Name: control-persist-close-stderr.patch
2016-07-22Close #831902.Colin Watson
2016-07-22CVE-2016-6210: Mitigate user enumeration via covert timing channel.Colin Watson
2016-07-22Search users for one with a valid salt.Darren Tucker
If the root account is locked (eg password "!!" or "*LK*") keep looking until we find a user with a valid salt to use for crypting passwords of invalid users. ok djm@ Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=dbf788b4d9d9490a5fff08a7b09888272bb10fcc Bug-Debian: https://bugs.debian.org/831902 Last-Update: 2016-07-22 Patch-Name: CVE-2016-6210-3.patch
2016-07-22Mitigate timing of disallowed users PAM logins.Darren Tucker
When sshd decides to not allow a login (eg PermitRootLogin=no) and it's using PAM, it sends a fake password to PAM so that the timing for the failure is not noticeably different whether or not the password is correct. This behaviour can be detected by sending a very long password string which is slower to hash than the fake password. Mitigate by constructing an invalid password that is the same length as the one from the client and thus takes the same time to hash. Diff from djm@ Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=283b97ff33ea2c641161950849931bd578de6946 Bug-Debian: https://bugs.debian.org/831902 Last-Update: 2016-07-22 Patch-Name: CVE-2016-6210-2.patch
2016-07-22Determine appropriate salt for invalid users.Darren Tucker
When sshd is processing a non-PAM login for a non-existent user it uses the string from the fakepw structure as the salt for crypt(3)ing the password supplied by the client. That string has a Blowfish prefix, so on systems that don't understand that crypt will fail fast due to an invalid salt, and even on those that do it may have significantly different timing from the hash methods used for real accounts (eg sha512). This allows user enumeration by, eg, sending large password strings. This was noted by EddieEzra.Harari at verint.com (CVE-2016-6210). To mitigate, use the same hash algorithm that root uses for hashing passwords for users that do not exist on the system. ok djm@ Origin: upstream, https://anongit.mindrot.org/openssh.git/commit/?id=9286875a73b2de7736b5e50692739d314cd8d9dc Bug-Debian: https://bugs.debian.org/831902 Last-Update: 2016-07-22 Patch-Name: CVE-2016-6210-1.patch
2016-07-22retry waitpid on EINTR failureDamien Miller
patch from Jakub Jelen on bz#2581; ok dtucker@
2016-07-22upstream commitdjm@openbsd.org
constify a few functions' arguments; patch from Jakub Jelen bz#2581 Upstream-ID: f2043f51454ea37830ff6ad60c8b32b4220f448d
2016-07-22upstream commitdjm@openbsd.org
move debug("%p", key) to before key is free'd; probable undefined behaviour on strict compilers; reported by Jakub Jelen bz#2581 Upstream-ID: 767f323e1f5819508a0e35e388ec241bac2f953a
2016-07-22upstream commitdjm@openbsd.org
reverse the order in which -J/JumpHost proxies are visited to be more intuitive and document reported by and manpage bits naddy@ Upstream-ID: 3a68fd6a841fd6cf8cedf6552a9607ba99df179a
2016-07-22upstream commitdtucker@openbsd.org
Skip passwords longer than 1k in length so clients can't easily DoS sshd by sending very long passwords, causing it to spend CPU hashing them. feedback djm@, ok markus@. Brought to our attention by tomas.kuthan at oracle.com, shilei-c at 360.cn and coredump at autistici.org Upstream-ID: d0af7d4a2190b63ba1d38eec502bc4be0be9e333
2016-07-22upstream commitnaddy@openbsd.org
Do not clobber the global jump_host variables when parsing an inactive configuration. ok djm@ Upstream-ID: 5362210944d91417d5976346d41ac0b244350d31
2016-07-22upstream commitjmc@openbsd.org
tweak previous; Upstream-ID: f3c1a5b3f05dff366f60c028728a2b43f15ff534
2016-07-22upstream commitdtucker@openbsd.org
Allow wildcard for PermitOpen hosts as well as ports. bz#2582, patch from openssh at mzpqnxow.com and jjelen at redhat.com. ok markus@ Upstream-ID: af0294e9b9394c4e16e991424ca0a47a7cc605f2
2016-07-22upstream commitmarkus@openbsd.org
Reduce timing attack against obsolete CBC modes by always computing the MAC over a fixed size of data. Reported by Jean Paul Degabriele, Kenny Paterson, Torben Hansen and Martin Albrecht. ok djm@ Upstream-ID: f20a13279b00ba0afbacbcc1f04e62e9d41c2912
2016-07-21Search users for one with a valid salt.Darren Tucker
If the root account is locked (eg password "!!" or "*LK*") keep looking until we find a user with a valid salt to use for crypting passwords of invalid users. ok djm@
2016-07-18Explicitly specify source files for regress tools.Darren Tucker
Since adding $(REGRESSLIBS), $? is wrong because it includes only the changed source files. $< seems like it'd be right however it doesn't seem to work on some non-GNU makes, so do what works everywhere.
2016-07-18Conditionally include err.h.Darren Tucker
2016-07-18Remove local implementation of err, errx.Darren Tucker
We now have a shared implementation in libopenbsd-compat.
2016-07-18upstream commitdjm@openbsd.org
Add some unsigned overflow checks for extra_pad. None of these are reachable with the amount of padding that we use internally. bz#2566, pointed out by Torben Hansen. ok markus@ Upstream-ID: 4d4be8450ab2fc1b852d5884339f8e8c31c3fd76
2016-07-18Add dependency on libs for unit tests.Darren Tucker
Makes "./configure && make tests" work again. ok djm@
2016-07-18Correct location for kexfuzz in clean target.Darren Tucker
2016-07-18Handle PAM_MAXTRIES from modules.Darren Tucker
bz#2249: handle the case where PAM returns PAM_MAXTRIES by ceasing to offer password and keyboard-interative authentication methods. Should prevent "sshd ignoring max retries" warnings in the log. ok djm@ It probably won't trigger with keyboard-interactive in the default configuration because the retry counter is stored in module-private storage which goes away with the sshd PAM process (see bz#688). On the other hand, those cases probably won't log a warning either.
2016-07-17upstream commitdjm@openbsd.org
support UTF-8 characters in ssh(1) banners using schwarze@'s safe fmprintf printer; bz#2058 feedback schwarze@ ok dtucker@ Upstream-ID: a72ce4e3644c957643c9524eea2959e41b91eea7
2016-07-17upstream commitjmc@openbsd.org
- add proxyjump to the options list - formatting fixes - update usage() ok djm Upstream-ID: 43d318e14ce677a2eec8f21ef5ba2f9f68a59457
2016-07-15upstream commitdtucker@openbsd.org
Reduce the syslog level of some relatively common protocol events from LOG_CRIT by replacing fatal() calls with logdie(). Part of bz#2585, ok djm@ Upstream-ID: 9005805227c94edf6ac02a160f0e199638d288e5
2016-07-15missing openssl/dh.hDamien Miller
2016-07-15cast to avoid type warning in error messageDamien Miller
2016-07-15Move VA_COPY macro into compat header.Darren Tucker
Some AIX compilers unconditionally undefine va_copy but don't set it back to an internal function, causing link errors. In some compat code we already use VA_COPY instead so move the two existing instances into the shared header and use for sshbuf-getput-basic.c too. Should fix building with at lease some versions of AIX's compiler. bz#2589, ok djm@
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