Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2023-37463
- cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-37463
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-37463
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
|
6.4
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H |
1.6
|
4.7
|
GitHub, Inc. |
CWE ids for CVE-2023-37463
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2023-37463
-
https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12
Release 0.29.0.gfm.12 · github/cmark-gfm · GitHubRelease Notes
-
https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5
Quadratic complexity bugs may lead to a denial of service · Advisory · github/cmark-gfm · GitHubExploit
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