Package "postgresql-12"

  postgresql-12 (12.15-0ubuntu0.20.04.1) focal-security; urgency=medium

  * New upstream version (LP: #2019214).

    + A dump/restore is not required for those running 12.X.

    + Also, if you are upgrading from a version earlier than 12.10, see
      those release notes as well please.

    + Prevent CREATE SCHEMA from defeating changes in search_path
      (Alexander Lakhin)

      Within a CREATE SCHEMA command, objects in the prevailing
      search_path, as well as those in the newly-created schema, would be
      visible even within a called function or script that attempted to set
      a secure search_path. This could allow any user having permission to
      create a schema to hijack the privileges of a security definer
      function or extension script.
      (CVE-2023-2454)

    + Enforce row-level security policies correctly after inlining a
      set-returning function (Stephen Frost, Tom Lane)

      If a set-returning SQL-language function refers to a table having
      row-level security policies, and it can be inlined into a calling
      query, those RLS policies would not get enforced properly in some
      cases involving re-using a cached plan under a different role. This
      could allow a user to see or modify rows that should have been
      invisible.
      (CVE-2023-2455)

    + Details about these and many further changes can be found at:
      https://www.postgresql.org/docs/12/release-12-15.html.

 -- Sergio Durigan Junior <email address hidden> Thu, 11 May 2023 15:58:10 -0400

  postgresql-12 (12.14-0ubuntu0.20.04.1) focal-security; urgency=medium

  * New upstream version (LP: #2006406).

    + A dump/restore is not required for those running 12.X.

    + Also, if you are upgrading from a version earlier than 12.10, see
      those release notes as well please.

    + libpq can leak memory contents after GSSAPI transport encryption
      initiation fails (Jacob Champion).
      (CVE-2022-41862)

    + Details about these and many further changes can be found at:
      https://www.postgresql.org/docs/12/release-12-14.html

 -- Athos Ribeiro <email address hidden> Thu, 09 Feb 2023 18:44:37 -0300

  postgresql-12 (12.13-0ubuntu0.20.04.1) focal; urgency=medium

  * New upstream version (LP: #1996770).

    + A dump/restore is not required for those running 12.X.

    + Also, if you are upgrading from a version earlier than 12.10, see
      those release notes as well please.

    + Disallow rules named _RETURN that are not ON SELECT rules (Tom Lane).

    + Fix use-after-free hazard in string comparisons. (Tom Lane)

    + Details about these and many further changes can be found at:
      https://www.postgresql.org/docs/12/release-12-13.html

 -- Sergio Durigan Junior <email address hidden> Thu, 17 Nov 2022 17:07:25 -0500

  postgresql-12 (12.12-0ubuntu0.20.04.1) focal-security; urgency=medium

  * New upstream version (LP: #1984012).

    + A dump/restore is not required for those running 12.X.

    + Also, if you are upgrading from a version earlier than 12.10, see
      those release notes as well please.

    + Do not let extension scripts replace objects not already belonging
      to the extension (Tom Lane).
      (CVE-2022-2625)

    + Fix permissions checks in CREATE INDEX (Nathan Bossart,
      Noah Misch).

    + Details about these and many further changes can be found at:
      https://www.postgresql.org/docs/12/release-12-12.html

 -- Athos Ribeiro <email address hidden> Thu, 11 Aug 2022 16:54:40 -0300

  postgresql-12 (12.11-0ubuntu0.20.04.1) focal-security; urgency=medium

  * New upstream version (LP: #1973627)

    + A dump/restore is not required for those running 12.X.

    + However, if you are upgrading from a version earlier than 12.10,
      see those release notes as well.

    + Confine additional operations within "security restricted operation"
      sandboxes (Sergey Shinderuk, Noah Misch).

      Autovacuum, CLUSTER, CREATE INDEX, REINDEX, REFRESH MATERIALIZED VIEW,
      and pg_amcheck activated the "security restricted operation" protection
      mechanism too late, or even not at all in some code paths. A user having
      permission to create non-temporary objects within a database could
      define an object that would execute arbitrary SQL code with superuser
      permissions the next time that autovacuum processed the object, or that
      some superuser ran one of the affected commands against it.

      The PostgreSQL Project thanks Alexander Lakhin for reporting this
      problem.
      (CVE-2022-1552)

    + Details about these and many further changes can be found at:
      https://www.postgresql.org/docs/12/release-12-11.html

 -- Sergio Durigan Junior <email address hidden> Tue, 17 May 2022 22:10:51 -0400