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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

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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