GHSA-qv4q-mr5r-qprj
Suggest an improvement- Source
- https://github.com/advisories/GHSA-qv4q-mr5r-qprj
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-qv4q-mr5r-qprj/GHSA-qv4q-mr5r-qprj.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-qv4q-mr5r-qprj
- Aliases
- Published
- 2022-12-08T03:03:33Z
- Modified
- 2023-11-01T04:57:51.927896Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Unchecked return value from xmlTextReaderExpand
- Details
-
Summary
Nokogiri
1.13.8, 1.13.9fails to check the return value fromxmlTextReaderExpandin the methodNokogiri::XML::Reader#attribute_hash. This can lead to a null pointer exception when invalid markup is being parsed.For applications using
XML::Readerto parse untrusted inputs, this may potentially be a vector for a denial of service attack.Mitigation
Upgrade to Nokogiri
>= 1.13.10.Users may be able to search their code for calls to either
XML::Reader#attributesorXML::Reader#attribute_hashto determine if they are affected.Severity
The Nokogiri maintainers have evaluated this as High Severity 7.5 (CVSS3.1).
References
Credit
This vulnerability was responsibly reported by @davidwilemski.
- References
-
- https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-qv4q-mr5r-qprj
- https://nvd.nist.gov/vuln/detail/CVE-2022-23476
- https://github.com/sparklemotion/nokogiri/commit/85410e38410f670cbbc8c5b00d07b843caee88ce
- https://github.com/sparklemotion/nokogiri/commit/9fe0761c47c0d4270d1a5220cfd25de080350d50
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2022-23476.yml
- https://github.com/sparklemotion/nokogiri
Affected packages
RubyGems / nokogiri
Package
- Name
- nokogiri
- Purl
- pkg:gem/nokogiri