CVE-2023-24824
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| github | cmark-gfm | < 0.29.0.gfm.10 | affected |
Weaknesses
- CWE-400: CWE-400: Uncontrolled Resource Consumption
- CWE-407: CWE-407: Inefficient Algorithmic Complexity
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh
- https://github.com/github/cmark-gfm/commit/2300c1bd2c8226108885bf019655c4159cf26b59
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh
- https://github.com/github/cmark-gfm/commit/2300c1bd2c8226108885bf019655c4159cf26b59
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