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GHSA-48wp-p9qv-4j64 json

Commonmarker vulnerable to to several quadratic complexity bugs that may lead to denial of service

published 3y ago modified 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

Summary

## 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-2023-24824](https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh) * [CVE-2023-26485](https://github.com/github/cmark-gfm/security/advisories/GHSA-r8vr-c48j-fcc5)

For more information, consult the release notes for version [`0.23.0.gfm.10`](https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.10) and [`0.23.0.gfm.11`](https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.11).

## Mitigation

Users are advised to upgrade to commonmarker version [`0.23.9`](https://rubygems.org/gems/commonmarker/versions/0.23.9).

Patch / fix

  • rubygems commonmarker 0.23.9

Is GHSA-48wp-p9qv-4j64 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
<0.23.9
0.23.9

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.