cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm's autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by running `python3 -c 'print("![l"* 100000 + "\n")' | ./cmark-gfm -e autolink`, which will resource exhaust on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in 0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink extension.
References
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2022-09-15T00:00:00
Updated: 2022-11-14T00:00:00
Reserved: 2022-09-02T00:00:00
Link: CVE-2022-39209
JSON object: View
NVD Information
Status : Modified
Published: 2022-09-15T18:15:12.260
Modified: 2023-11-07T03:50:21.370
Link: CVE-2022-39209
JSON object: View
Redhat Information
No data.