Package "openssh-client-ssh1"

  openssh (1:7.2p2-4ubuntu2.4) xenial-security; urgency=medium

  * SECURITY UPDATE: untrusted search path when loading PKCS#11 modules
    - debian/patches/CVE-2016-10009.patch: add a whitelist of paths from
      which ssh-agent will load a PKCS#11 module in ssh-agent.1,
      ssh-agent.c.
    - debian/patches/CVE-2016-10009-2.patch: fix deletion of PKCS#11 keys
      in ssh-agent.c.
    - debian/patches/CVE-2016-10009-3.patch: relax whitelist in
      ssh-agent.c.
    - debian/patches/CVE-2016-10009-4.patch: add missing label in
      ssh-agent.c.
    - CVE-2016-10009
  * SECURITY UPDATE: local privilege escalation via socket permissions when
    privilege separation is disabled
    - debian/patches/CVE-2016-10010.patch: disable Unix-domain socket
      forwarding when privsep is disabled in serverloop.c.
    - debian/patches/CVE-2016-10010-2.patch: unbreak Unix domain socket
      forwarding for root in serverloop.c.
    - CVE-2016-10010
  * SECURITY UPDATE: local information disclosure via effects of realloc on
    buffer contents
    - debian/patches/CVE-2016-10011-pre.patch: split allocation out of
      sshbuf_reserve() in sshbuf.c, sshbuf.h.
    - debian/patches/CVE-2016-10011.patch: pre-allocate the buffer used for
      loading keys in authfile.c.
    - CVE-2016-10011
  * SECURITY UPDATE: local privilege escalation via incorrect bounds check
    in shared memory manager
    - debian/patches/CVE-2016-10012-1.patch: remove support for
      pre-authentication compression in Makefile.in, monitor.c, monitor.h,
      monitor_mm.c, monitor_mm.h, monitor_wrap.h, myproposal.h, opacket.h,
      packet.c, packet.h, servconf.c, sshconnect2.c, sshd.c.
    - debian/patches/CVE-2016-10012-2.patch: restore pre-auth compression
      support in the client in kex.c, kex.h, packet.c, servconf.c,
      sshconnect2.c, sshd_config.5.
    - debian/patches/CVE-2016-10012-3.patch: put back some pre-auth zlib
      bits in kex.c, kex.h, packet.c.
    - CVE-2016-10012
  * SECURITY UPDATE: DoS via zero-length file creation in readonly mode
    - debian/patches/CVE-2017-15906.patch: disallow creation of empty files
      in sftp-server.c.
    - CVE-2017-15906

 -- Marc Deslauriers <email address hidden> Mon, 15 Jan 2018 09:50:38 -0500

  openssh (1:7.2p2-4ubuntu2.2) xenial; urgency=medium

  * Fix ssh-keygen -H accidentally corrupting known_hosts that contained
    already-hashed entries (LP: #1668093).
  * Fix ssh-keyscan to correctly hash hosts with a port number (LP: #1670745).

 -- Christian Ehrhardt <email address hidden> Wed, 15 Mar 2017 13:16:56 +0100

  openssh (1:7.2p2-4ubuntu2.1) xenial-security; urgency=medium

  * SECURITY UPDATE: user enumeration via covert timing channel
    - debian/patches/CVE-2016-6210-1.patch: determine appropriate salt for
      invalid users in auth-passwd.c, openbsd-compat/xcrypt.c.
    - debian/patches/CVE-2016-6210-2.patch: mitigate timing of disallowed
      users PAM logins in auth-pam.c.
    - debian/patches/CVE-2016-6210-3.patch: search users for one with a
      valid salt in openbsd-compat/xcrypt.c.
    - CVE-2016-6210
  * SECURITY UPDATE: denial of service via long passwords
    - debian/patches/CVE-2016-6515.patch: skip passwords longer than 1k in
      length in auth-passwd.c.
    - CVE-2016-6515

 -- Marc Deslauriers <email address hidden> Thu, 11 Aug 2016 08:38:27 -0400

  openssh (1:7.2p2-4ubuntu1) xenial; urgency=medium

  * Backport upstream patch to unbreak authentication using lone certificate
    keys in ssh-agent: when attempting pubkey auth with a certificate, if no
    separate private key is found among the keys then try with the
    certificate key itself (thanks, Paul Querna; LP: #1575961).

 -- Colin Watson <email address hidden> Thu, 28 Apr 2016 01:57:51 +0100