Package "postgresql-9.1"

  postgresql-9.1 (9.1.19-0ubuntu0.12.04) precise-security; urgency=medium

  * New upstream security/bug fix release (LP: #1504132)
    - Fix contrib/pgcrypto to detect and report too-short crypt() salts
      Certain invalid salt arguments crashed the server or disclosed a few
      bytes of server memory. We have not ruled out the viability of attacks
      that arrange for presence of confidential information in the disclosed
      bytes, but they seem unlikely. (CVE-2015-5288)
    - See release notes for details about other fixes.

 -- Martin Pitt Thu, 08 Oct 2015 16:03:41 +0200

  postgresql-9.1 (9.1.18-0ubuntu0.12.04) precise-proposed; urgency=medium

  * New upstream bug fix release (LP: #1464669)
    - Fix possible failure to recover from an inconsistent database state
    - Fix rare failure to invalidate relation cache init file
    - See http://www.postgresql.org/about/news/1592/ for details.

 -- Martin Pitt <email address hidden> Fri, 12 Jun 2015 16:15:01 +0200

  postgresql-9.1 (9.1.17-0ubuntu0.12.04) precise-proposed; urgency=medium

  * New upstream bug fix release (LP: #1461425)
    - Avoid failures while fsync'ing data directory during crash restart.

      In the previous minor releases we added a patch to fsync everything in
      the data directory after a crash. Unfortunately its response to any
      error condition was to fail, thereby preventing the server from starting
      up, even when the problem was quite harmless. An example is that an
      unwritable file in the data directory would prevent restart on some
      platforms; but it is common to make SSL certificate files unwritable by
      the server. Revise this behavior so that permissions failures are
      ignored altogether, and other types of failures are logged but do not
      prevent continuing.

   - See release notes for details about other fixes.

 -- Martin Pitt <email address hidden> Wed, 03 Jun 2015 09:58:48 +0200

  postgresql-9.1 (9.1.16-0ubuntu0.12.04) precise-security; urgency=medium

  * New upstream security/bug fix release (LP: #1457093)
    - Avoid possible crash when client disconnects just before the
      authentication timeout expires.
      If the timeout interrupt fired partway through the session shutdown
      sequence, SSL-related state would be freed twice, typically causing a
      crash and hence denial of service to other sessions. Experimentation
      shows that an unauthenticated remote attacker could trigger the bug
      somewhat consistently, hence treat as security issue. (CVE-2015-3165)

    - Improve detection of system-call failures
      Our replacement implementation of snprintf() failed to check for errors
      reported by the underlying system library calls; the main case that
      might be missed is out-of-memory situations. In the worst case this
      might lead to information exposure, due to our code assuming that a
      buffer had been overwritten when it hadn't been. Also, there were a few
      places in which security-relevant calls of other system library
      functions did not check for failure.
      It remains possible that some calls of the *printf() family of functions
      are vulnerable to information disclosure if an out-of-memory error
      occurs at just the wrong time. We judge the risk to not be large, but
      will continue analysis in this area. (CVE-2015-3166)

    - In contrib/pgcrypto, uniformly report decryption failures as Wrong key
      or corrupt data
      Previously, some cases of decryption with an incorrect key could report
      other error message texts. It has been shown that such variance in
      error reports can aid attackers in recovering keys from other systems.
      While it's unknown whether pgcrypto's specific behaviors are likewise
      exploitable, it seems better to avoid the risk by using a
      one-size-fits-all message. (CVE-2015-3167)

    - Protect against wraparound of multixact member IDs
      Under certain usage patterns, the existing defenses against this might
      be insufficient, allowing pg_multixact/members files to be removed too
      early, resulting in data loss.
      The fix for this includes modifying the server to fail transactions that
      would result in overwriting old multixact member ID data, and improving
      autovacuum to ensure it will act proactively to prevent multixact member
      ID wraparound, as it does for transaction ID wraparound.

   - See release notes for details about other fixes.

  * Backport the autopkgtest, as running the postgresql-common integration
    test suite is a lot simpler that way. Add manual creation of required
    locales, as precise's postgresql-common test suite does not yet do that by
    itself.

 -- Martin Pitt <email address hidden> Wed, 20 May 2015 23:25:56 +0200

  postgresql-9.1 (9.1.15-0ubuntu0.12.04) precise-security; urgency=medium

  * New upstream security/bug fix release (LP: #1418928)
    - Fix buffer overruns in to_char() [CVE-2015-0241]
    - Fix buffer overruns in contrib/pgcrypto [CVE-2015-0243]
    - Fix possible loss of frontend/backend protocol synchronization after an
      error [CVE-2015-0244]
    - Fix information leak via constraint-violation error messages
      [CVE-2014-8161]
    - See release notes for details about other fixes:
      http://www.postgresql.org/about/news/1569/
 -- Martin Pitt <email address hidden> Fri, 06 Feb 2015 12:58:26 +0100