CVE-2022-29181

Summary

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri prior to version 1.13.6 does not type-check all inputs into the XML and HTML4 SAX parsers, allowing specially crafted untrusted inputs to cause illegal memory access errors (segfault) or reads from unrelated memory. Version 1.13.6 contains a patch for this issue. As a workaround, ensure the untrusted input is a String by calling #to_s or equivalent.

Affected Software

Weaknesses

• CWE-241: CWE-241: Improper Handling of Unexpected Data Type

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-xh29-r2w5-wx8m
• https://github.com/sparklemotion/nokogiri/commit/db05ba9a1bd4b90aa6c76742cf6102a7c7297267
• https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.6
• https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri/
• https://security.gentoo.org/glsa/202208-29
• https://support.apple.com/kb/HT213532
• http://seclists.org/fulldisclosure/2022/Dec/23

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-xh29-r2w5-wx8m
• https://github.com/sparklemotion/nokogiri/commit/83cc451c3f29df397caa890afc3b714eae6ab8f7
• https://github.com/sparklemotion/nokogiri/commit/db05ba9a1bd4b90aa6c76742cf6102a7c7297267
• https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.6
• https://securitylab.github.com/advisories/GHSL-2022-031_GHSL-2022-032_Nokogiri

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