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Gentoo Linux Security Advisory                           GLSA 202208-06
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: lxml: Multiple Vulnerabilities
     Date: August 10, 2022
     Bugs: #777579, #829053, #856598
       ID: 202208-06

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Synopsis
=======
Multiple vulnerabilities have been discovered in lxml, the worst of
which could result in denial of service.

Background
=========
lxml is a Pythonic binding for the libxml2 and libxslt libraries.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-python/lxml            < 4.9.1                      >= 4.9.1

Description
==========
Multiple vulnerabilities have been discovered in lxml. 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 lxml users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">Þv-python/lxml-4.9.1"

References
=========
[ 1 ] CVE-2021-28957
      https://nvd.nist.gov/vuln/detail/CVE-2021-28957
[ 2 ] CVE-2021-43818
      https://nvd.nist.gov/vuln/detail/CVE-2021-43818
[ 3 ] CVE-2022-2309
      https://nvd.nist.gov/vuln/detail/CVE-2022-2309
[ 4 ] GHSL-2021-1037
[ 5 ] GHSL-2021-1038

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

 https://security.gentoo.org/glsa/202208-06

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 2022 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