medium5.3
CVE-2023-24824
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C.
Impact
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. This CVE covers quadratic complexity issues when parsing text which leads with either large numbers of `>` or `-` characters. This issue has been addressed in version 0.29.0.gfm.10. Users are advised to upgrade. Users unable to upgrade should validate that their input comes from trusted sources.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Github | Cmark-Gfm | before 0.29.0.gfm.10. |
Weakness classification
References
- NVD record
- CVE.org record
- 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/commit/2300c1bd2c8226108885bf019655c4159cf26b59
- https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh