Commonmarker vulnerable to to several quadratic complexity bugs that may lead to denial of service
Published: March 31, 2023
SECURITY IDENTIFIERS
- GHSA: GHSA-48wp-p9qv-4j64
- Vendor Advisory: https://github.com/gjtorikian/commonmarker/releases/tag/v0.23.9
GEM
SEVERITY
CVSS v3.x: 7.5 (High)
PATCHED VERSIONS
>= 0.23.9
DESCRIPTION
Impact
Several quadratic complexity bugs in commonmarker's underlying cmark-gfm library may lead to unbounded resource exhaustion and subsequent denial of service.
The following vulnerabilities were addressed:
- CVE-2023-24824
- CVE-2023-26485
For more information, consult the release notes for versions 0.23.0.gfm.10 and 0.23.0.gfm.11.
Mitigation
Users are advised to upgrade to commonmarker version 0.23.9
RELATED
- CVE-2023-24824 (NVD)
- CVE-2023-26485 (NVD)
- https://nvd.nist.gov/vuln/detail/CVE-2023-24824
- https://nvd.nist.gov/vuln/detail/CVE-2023-26485
- https://github.com/gjtorikian/commonmarker/pull/236
- https://rubygems.org/gems/commonmarker/versions/0.23.9
- https://github.com/gjtorikian/commonmarker/releases/tag/v0.23.9
- https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-48wp-p9qv-4j64
- https://github.com/github/cmark-gfm/commit/2300c1bd2c8226108885bf019655c4159cf26b59
- https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh
- https://github.com/github/cmark-gfm/security/advisories/GHSA-r8vr-c48j-fcc5
- https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.10
- https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.11