[USN-6968-1] PostgreSQL vulnerability

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-6968-1
August 19, 2024

postgresql-12, postgresql-14, postgresql-16 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

PostgreSQL could execute arbitrary SQL functions as the superuser
if it received a specially crafted SQL object.

Software Description:
- postgresql-16: Object-relational SQL database
- postgresql-14: Object-relational SQL database
- postgresql-12: Object-relational SQL database

Details:

Noah Misch discovered that PostgreSQL incorrectly handled certain
SQL objects. An attacker could possibly use this issue to execute
arbitrary SQL functions as the superuser.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
  postgresql-16                   16.4-0ubuntu0.24.04.1
  postgresql-client-16            16.4-0ubuntu0.24.04.1

Ubuntu 22.04 LTS
  postgresql-14                   14.13-0ubuntu0.22.04.1
  postgresql-client-14            14.13-0ubuntu0.22.04.1

Ubuntu 20.04 LTS
  postgresql-12                   12.20-0ubuntu0.20.04.1
  postgresql-client-12            12.20-0ubuntu0.20.04.1

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart PostgreSQL to
make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-6968-1
  CVE-2024-7348

Package Information:
  https://launchpad.net/ubuntu/+source/postgresql-16/16.4-0ubuntu0.24.04.1
  https://launchpad.net/ubuntu/+source/postgresql-14/14.13-0ubuntu0.22.04.1
  https://launchpad.net/ubuntu/+source/postgresql-12/12.20-0ubuntu0.20.04.1

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