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Gentoo Linux Security Advisory                           GLSA 202310-06
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                                           https://security.gentoo.org/
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 Severity: High
    Title: Heimdal: Multiple Vulnerabilities
     Date: October 08, 2023
     Bugs: #881429, #893722
       ID: 202310-06

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Synopsis
========

Multiple vulnerabilities have been discovered in Heimdal, the worst of
which could lead to remote code execution on a KDC.

Background
==========

Heimdal is a free implementation of Kerberos 5.

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

Package            Vulnerable    Unaffected
-----------------  ------------  ------------
app-crypt/heimdal  < 7.8.0-r1    >= 7.8.0-r1

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

Multiple vulnerabilities have been discovered in Heimdal, the worst of
which could lead to remote code execution on a Kerberos Domain
Controller.

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 Cross-realm trust vulnerability in Heimdal users should upgrade to
the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-crypt/heimdal-7.8.0-r1"

References
==========

[ 1 ] CVE-2019-14870
      https://nvd.nist.gov/vuln/detail/CVE-2019-14870
[ 2 ] CVE-2021-44758
      https://nvd.nist.gov/vuln/detail/CVE-2021-44758
[ 3 ] CVE-2022-3437
      https://nvd.nist.gov/vuln/detail/CVE-2022-3437
[ 4 ] CVE-2022-3671
      https://nvd.nist.gov/vuln/detail/CVE-2022-3671
[ 5 ] CVE-2022-41916
      https://nvd.nist.gov/vuln/detail/CVE-2022-41916
[ 6 ] CVE-2022-42898
      https://nvd.nist.gov/vuln/detail/CVE-2022-42898
[ 7 ] CVE-2022-44640
      https://nvd.nist.gov/vuln/detail/CVE-2022-44640
[ 8 ] CVE-2022-44758
      https://nvd.nist.gov/vuln/detail/CVE-2022-44758
[ 9 ] CVE-2022-45142
      https://nvd.nist.gov/vuln/detail/CVE-2022-45142

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

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

 https://security.gentoo.org/glsa/202310-06

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 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/