CVE-2022-39209

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2022-39209
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-09-15 18:15:00 UTC
Updated2023-11-07 03:50:00 UTC
Descriptioncmark-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.

Risk And Classification

Problem Types: CWE-407

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 35 All All All
Operating System Fedoraproject Fedora 36 All All All
Operating System Fedoraproject Fedora 37 All All All
Application Github Cmark-gfm All All All All

References

ReferenceSourceLinkTags
Time complexity - Wikipedia MISC en.wikipedia.org
Unbounded resource exhaustion may lead to denial of service · Advisory · github/cmark-gfm · GitHub CONFIRM github.com
Merge pull request from GHSA-cgh3-p57x-9q7q · github/cmark-gfm@9d57d8a · GitHub MISC github.com
[SECURITY] Fedora 36 Update: ghc-cmark-gfm-0.2.5-1.fc36 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 37 Update: ghc-cmark-gfm-0.2.5-1.fc37 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 35 Update: ghc-cmark-gfm-0.2.5-1.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 37 Update: ghc-cmark-gfm-0.2.5-1.fc37 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 35 Update: ghc-cmark-gfm-0.2.5-1.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 36 Update: ghc-cmark-gfm-0.2.5-1.fc36 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 182768 Debian Security Update for ghostwriterr-cran-commonmarkcmark-gfm (CVE-2022-39209)
  • 283285 Fedora Security Update for ghc (FEDORA-2022-6bcee2cc93)
  • 283286 Fedora Security Update for ghc (FEDORA-2022-f1aed93db8)
  • 283448 Fedora Security Update for ghc (FEDORA-2022-dc6d6d9d6c)
  • 285321 Fedora Security Update for ghostwriter (FEDORA-2023-d1e9e62a92)

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report