[ubuntu/lucid-security] postgresql-8.4 8.4.17-0ubuntu10.04 (Accepted)

[Marc Deslauriers]

postgresql-8.4 (8.4.17-0ubuntu10.04) lucid-security; urgency=low

  * New upstream security/bug fix release: (LP: #1163184)
    - Reset OpenSSL randomness state in each postmaster child process.
      This avoids a scenario wherein random numbers generated by
      "contrib/pgcrypto" functions might be relatively easy for another
      database user to guess. The risk is only significant when the
      postmaster is configured with ssl = on but most connections don't
      use SSL encryption. [CVE-2013-1900]
    - Fix GiST indexes to not use "fuzzy" geometric comparisons when it's
      not appropriate to do so.
      The core geometric types perform comparisons using "fuzzy"
      equality, but gist_box_same must do exact comparisons, else GiST
      indexes using it might become inconsistent. After installing this
      update, users should "REINDEX" any GiST indexes on box, polygon,
      circle, or point columns, since all of these use gist_box_same.
    - Fix erroneous range-union and penalty logic in GiST indexes that
      use "contrib/btree_gist" for variable-width data types, that is
      text, bytea, bit, and numeric columns.
      These errors could result in inconsistent indexes in which some
      keys that are present would not be found by searches, and also in
      useless index bloat. Users are advised to "REINDEX" such indexes
      after installing this update.
    - Fix bugs in GiST page splitting code for multi-column indexes.
      These errors could result in inconsistent indexes in which some
      keys that are present would not be found by searches, and also in
      indexes that are unnecessarily inefficient to search. Users are
      advised to "REINDEX" multi-column GiST indexes after installing
      this update.
    - See HISTORY/changelog.gz for the other bug fixes.

Date: 2013-04-03 12:10:16.878966+00:00
Changed-By: Martin Pitt <martin.pitt at ubuntu.com>
Signed-By: Marc Deslauriers <marc.deslauriers at canonical.com>
https://launchpad.net/ubuntu/lucid/+source/postgresql-8.4/8.4.17-0ubuntu10.04
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