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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
================
     -------------------------------------------------------------------
      Package              /     Vulnerable     /            Unaffected
     -------------------------------------------------------------------
   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/