VulnerabilityModified
CVE-2023-37463
Three polynomial time complexity issues in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service.
HIGH 7.5EPSS 0.70%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.70% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- github/cmark-gfm
- Source
- security-advisories@github.com
References
- https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12Release Notes
- https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5Exploit
- https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12Release Notes
- https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.