CVE-2023-37463

Summary

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.

Affected Software

Weaknesses

• CWE-400: CWE-400: Uncontrolled Resource Consumption

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5
• https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5
• https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12

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