[ GLSA 202409-02 ] PostgreSQL: Privilege Escalation

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Gentoo Linux Security Advisory                           GLSA 202409-02
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                                           https://security.gentoo.org/
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 Severity: High
    Title: PostgreSQL: Privilege Escalation
     Date: September 22, 2024
     Bugs: #937573
       ID: 202409-02

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Synopsis
========

A vulnerability has been discovered in PostgreSQL, which can lead to
privilege escalation.

Background
==========

PostgreSQL is an open source object-relational database management
system.

Affected packages
=================

Package            Vulnerable    Unaffected
-----------------  ------------  ------------
dev-db/postgresql  < 12.20:12    >= 12.20:12
                   < 13.16:13    >= 13.16:13
                   < 14.13:14    >= 14.13:14
                   < 15.8:15     >= 15.8:15
                   < 16.4:16     >= 16.4:16

Description
===========

A vulnerability has been discovered in PostgreSQL. Please review the CVE
identifier referenced below for details.

Impact
======

An attacker able to create and drop non-temporary objects could inject
SQL code that would be executed by a concurrent pg_dump session with the
privileges of the role running pg_dump (which is often a superuser). The
attack involves replacing a sequence or similar object with a view or
foreign table that will execute malicious code. To prevent this,
introduce a new server parameter restrict_nonsystem_relation_kind that
can disable expansion of non-builtin views as well as access to foreign
tables, and teach pg_dump to set it when available. Note that the attack
is prevented only if both pg_dump and the server it is dumping from are
new enough to have this fix.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PostgreSQL users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-db/postgresql-12.20:12"
  # emerge --ask --oneshot --verbose ">=dev-db/postgresql-13.16:13"
  # emerge --ask --oneshot --verbose ">=dev-db/postgresql-14.13:14"
  # emerge --ask --oneshot --verbose ">=dev-db/postgresql-15.8:15"
  # emerge --ask --oneshot --verbose ">=dev-db/postgresql-16.4:16"

References
==========

[ 1 ] CVE-2024-7348
      https://nvd.nist.gov/vuln/detail/CVE-2024-7348

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202409-02

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2024 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5
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