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Gentoo Linux Security Advisory                           GLSA 202402-18
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                                           https://security.gentoo.org/
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 Severity: High
    Title: Exim: Multiple Vulnerabilities
     Date: February 18, 2024
     Bugs: #914923, #921520
       ID: 202402-18

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Synopsis
========

Multiple vulnerabilities have been discovered in Exim, the worst of
which can lead to remote code execution.

Background
==========

Exim is a message transfer agent (MTA) designed to be a a highly
configurable, drop-in replacement for sendmail.

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

Package        Vulnerable    Unaffected
-------------  ------------  ------------
mail-mta/exim  < 4.97.1      >= 4.97.1

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

Multiple vulnerabilities have been discovered in Exim. Please review the
CVE identifiers referenced below for details.

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Exim users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=mail-mta/exim-4.97.1"

References
==========

[ 1 ] CVE-2023-42114
      https://nvd.nist.gov/vuln/detail/CVE-2023-42114
[ 2 ] CVE-2023-42115
      https://nvd.nist.gov/vuln/detail/CVE-2023-42115
[ 3 ] CVE-2023-42116
      https://nvd.nist.gov/vuln/detail/CVE-2023-42116
[ 4 ] CVE-2023-42117
      https://nvd.nist.gov/vuln/detail/CVE-2023-42117
[ 5 ] CVE-2023-42119
      https://nvd.nist.gov/vuln/detail/CVE-2023-42119
[ 6 ] CVE-2023-51766
      https://nvd.nist.gov/vuln/detail/CVE-2023-51766
[ 7 ] ZDI-CAN-17433
[ 8 ] ZDI-CAN-17434
[ 9 ] ZDI-CAN-17515
[ 10 ] ZDI-CAN-17554
[ 11 ] ZDI-CAN-17643

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

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

 https://security.gentoo.org/glsa/202402-18

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 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/