CVE-2022-23476

published 2022-12-08

CVE-2022-23476: Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from…

Priority P3 39 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I N A H

Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail 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. Users are advised to upgrade to Nokogiri `>= 1.13.10`. 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.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
debian	ruby-nokogiri	< ruby-nokogiri 1.13.10+dfsg-1 (bookworm)	ruby-nokogiri 1.13.10+dfsg-1 (bookworm)
nokogiri	nokogiri	—	—
nokogiri	nokogiri	—	—
nokogiri	nokogiri	>= 1.13.8 < 1.13.10	1.13.10
sparklemotion	nokogiri	—	—

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv 7.5 HIGH

vendor_debian 7.5 HIGH

vendor_redhat 7.5 HIGH

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CWE-252 CWE-476