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Gentoo Linux Security Advisory                           GLSA 202305-09
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: syslog-ng: Denial of Service
     Date: May 03, 2023
     Bugs: #891941
       ID: 202305-09

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Synopsis
========

A denial of service vulnerability was discovered in rsyslog related to
syslog input over the network.

Background
==========

syslog replacement with advanced filtering features.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-admin/syslog-ng        < 3.38.1                    >= 3.38.1

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

An integer overflow in the RFC3164 parser allows remote attackers to
cause a denial of service via crafted syslog input that is mishandled by
the tcp or network function.

Impact
======

Attackers with access to input syslogs over syslog-ng's network
functionality can cause a denial of service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All syslog-ng users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-3.38.1"

References
==========

[ 1 ] CVE-2022-38725
      https://nvd.nist.gov/vuln/detail/CVE-2022-38725

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

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

 https://security.gentoo.org/glsa/202305-09

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 2023 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