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CVE-2022-23476 (GCVE-0-2022-23476)

Vulnerability from cvelistv5 – Published: 2022-12-08 03:03 – Updated: 2025-04-23 16:31
VLAI
Title
Unchecked return value from xmlTextReaderExpand in Nokogiri
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:48 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
sparklemotion nokogiri Affected: >= 1.13.8, < 1.13.10
guessed Create a notification for this product.
Show details on NVD website
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