Several quadratic complexity bugs may lead to denial of service in Commonmarker

published 2023-08-08 3y ago modified 2024-12-01 last yr.

cvss: —; not scored
cisa kev: Not listed; not in CISA's catalog
epss: —; no score, EPSS covers CVEs only
public exploits: 0; none known

## Impact

Several quadratic complexity bugs in commonmarker's underlying [`cmark-gfm`](https://github.com/github/cmark-gfm) library may lead to unbounded resource exhaustion and subsequent denial of service.

The following vulnerabilities were addressed:

* [CVE-2023-37463](https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5)

For more information, consult the release notes for version [`0.29.0.gfm.12`](https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12).

## Mitigation

Users are advised to upgrade to commonmarker version [`0.23.10`](https://rubygems.org/gems/commonmarker/versions/0.23.10).

Patch / fix

fixed in 1 links 2

rubygems commonmarker 0.23.10

Is GHSA-7vh7-fw88-wj87 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Affected packages

ecosystem	package	affected	fixed in
rubygems	commonmarker	<0.23.10	0.23.10

Classification

Weakness

CWE-407 Inefficient Algorithmic Complexity

References

Sources

GitHub Advisory GHSA-7vh7-fw88-wj87

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