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Gentoo Linux Security Advisory                           GLSA 202305-22
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: ISC DHCP: Multiple Vulnerabilities
     Date: May 03, 2023
     Bugs: #875521, #792324
       ID: 202305-22

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Synopsis
========

Multiple vulnerabilities have been discovered in ISC DHCP, the worst of
which could result in denial of service.

Background
==========

ISC DHCP is ISC's reference implementation of all aspects of the Dynamic
Host Configuration Protocol.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-misc/dhcp              < 4.4.3_p1                >= 4.4.3_p1

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

Multiple vulnerabilities have been discovered in ISC DHCP. 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 ISC DHCP users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/dhcp-4.4.3_p1"

References
==========

[ 1 ] CVE-2021-25217
      https://nvd.nist.gov/vuln/detail/CVE-2021-25217
[ 2 ] CVE-2022-2928
      https://nvd.nist.gov/vuln/detail/CVE-2022-2928
[ 3 ] CVE-2022-2929
      https://nvd.nist.gov/vuln/detail/CVE-2022-2929

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

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

 https://security.gentoo.org/glsa/202305-22

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