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Gentoo Linux Security Advisory                           GLSA 202408-13
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Nokogiri: Denial of Service
     Date: August 07, 2024
     Bugs: #884863
       ID: 202408-13
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Synopsis
========
A vulnerability has been discovered in Nokogiri, which can lead to a
denial of service.
Background
==========
Nokogiri is an HTML, XML, SAX, and Reader parser.
Affected packages
=================
Package            Vulnerable    Unaffected
-----------------  ------------  ------------
dev-ruby/nokogiri  < 1.13.10     >= 1.13.10
Description
===========
A denial of service vulnerability has been discovered in Nokogiri.
Please review the CVE identifier referenced below for details.
Impact
======
Nokogiri fails to check the return value from `xmlTextReaderExpand` in
the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a
null pointer exception when invalid markup is being parsed. For
applications using `XML::Reader` to parse untrusted inputs, this may
potentially be a vector for a denial of service attack.
Workaround
==========
Users may be able to search their code for calls to either
`XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if
they are affected.
Resolution
==========
All Nokogiri users should upgrade to the latest version:
  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-ruby/nokogiri-1.13.10"
References
==========
[ 1 ] CVE-2022-23476
      https://nvd.nist.gov/vuln/detail/CVE-2022-23476
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
 https://security.gentoo.org/glsa/202408-13
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
[email protected] 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