{ "id": "CVE-2023-24824", "sourceIdentifier": "security-advisories@github.com", "published": "2023-03-31T23:15:07.153", "lastModified": "2023-04-11T06:25:18.527", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [ { "lang": "en", "value": "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." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 3.6 }, { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 3.9, "impactScore": 1.4 } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-400" }, { "lang": "en", "value": "CWE-407" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.29.0.gfm.10.", "matchCriteriaId": "D388F6C5-34DD-4C62-9D86-0E10F97FC4EB" } ] } ] } ], "references": [ { "url": "https://github.com/github/cmark-gfm/commit/2300c1bd2c8226108885bf019655c4159cf26b59", "source": "security-advisories@github.com", "tags": [ "Patch" ] }, { "url": "https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh", "source": "security-advisories@github.com", "tags": [ "Exploit", "Vendor Advisory" ] } ] }