[ASA-202204-1] postgresql: man-in-the-middle

[Levente Polyak]

Arch Linux Security Advisory ASA-202204-1
=========================================

Severity: High
Date    : 2022-04-04
CVE-ID  : CVE-2021-23214
Package : postgresql
Type    : man-in-the-middle
Remote  : Yes
Link    : https://security.archlinux.org/AVG-2546

Summary
=======

The package postgresql before version 13.5-1 is vulnerable to man-in-
the-middle.

Resolution
==========

Upgrade to 13.5-1.

# pacman -Syu "postgresql>=13.5-1"

The problem has been fixed upstream in version 13.5.

Workaround
==========

None.

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

A security issue has been found in PostgreSQL versions 9.6 up to 14.
When the server is configured to use trust authentication with a
clientcert requirement or to use cert authentication, a man-in-the-
middle attacker can inject arbitrary SQL queries when a connection is
first established, despite the use of SSL certificate verification and
encryption.

Impact
======

A man-in-the-middle attacker is able to inject arbitrary SQL queries
when a connection is first established, despite the use of SSL
certificate verification and encryption.

References
==========

https://www.postgresql.org/support/security/CVE-2021-23214/
https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=28e24125541545483093819efae9bca603441951
https://security.archlinux.org/CVE-2021-23214
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