GLSA 202408-13: Nokogiri: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	Nokogiri: Denial of Service
Date:	08/07/2024
Bugs:	#884863
ID:	202408-13

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	Architecture(s)
dev-ruby/nokogiri	< 1.13.10	>= 1.13.10	All supported architectures

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

CVE-2022-23476

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202408-13.xml

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.