CVE-2023-37463

cmark-gfm is an extended version of the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. Three polynomial time complexity issues in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. These vulnerabilities have been patched in 0.29.0.gfm.12.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12	Release Notes
https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5	Exploit

Configurations

Configuration 1 (hide)

cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-07-13 20:15

Updated : 2023-07-25 18:37

NVD link : CVE-2023-37463

Mitre link : CVE-2023-37463

CVE.ORG link : CVE-2023-37463

JSON object : View

Products Affected

github

cmark-gfm

CWE

NVD-CWE-noinfo CWE-400

Uncontrolled Resource Consumption

{"id": "CVE-2023-37463", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 1.6}]}, "published": "2023-07-13T20:15:09.327", "references": [{"url": "https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5", "tags": ["Exploit"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "cmark-gfm is an extended version of the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. Three polynomial time complexity issues in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. These vulnerabilities have been patched in 0.29.0.gfm.12.\n"}], "lastModified": "2023-07-25T18:37:08.047", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "78444374-3BCE-483F-94BC-AECCBE065DA5", "versionEndExcluding": "0.29.0.gfm.12"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}