A SpamAssassin security update has been released for Gentoo Linux.

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Gentoo Linux Security Advisory GLSA 202105-26
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  https://security.gentoo.org/
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Severity: Normal
Title: SpamAssassin: Arbitrary command execution
Date: May 26, 2021
Bugs: #778002
ID: 202105-26

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Synopsis
========

A vulnerability in SpamAssassin might allow remote attackers to execute
arbitrary commands.

Background
==========

SpamAssassin is an extensible email filter used to identify junk email.

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

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Package / Vulnerable / Unaffected
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1 mail-filter/spamassassin
< 3.4.5 >= 3.4.5

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

It was discovered that SpamAssassin incorrectly handled certain CF
files.

Impact
======

A remote attacker could entice a user or automated system to process a
specially crafted CF file using SpamAssassin, possibly resulting in
execution of arbitrary commands with the privileges of the process or a
Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SpamAssassin users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-filter/spamassassin-3.4.5"

References
==========

[ 1 ] CVE-2020-1946
  https://nvd.nist.gov/vuln/detail/CVE-2020-1946

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

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

  https://security.gentoo.org/glsa/202105-26

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
security@gentoo.org or alternatively, you may file a bug at
  https://bugs.gentoo.org.

License
=======

Copyright 2021 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