CVE-2020-5238

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Summary

CVECVE-2020-5238
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-07-01 23:15:00 UTC
Updated2023-11-07 03:23:00 UTC
DescriptionThe table extension in GitHub Flavored Markdown before version 0.29.0.gfm.1 takes O(n * n) time to parse certain inputs. An attacker could craft a markdown table which would take an unreasonably long time to process, causing a denial of service. This issue does not affect the upstream cmark project. The issue has been fixed in version 0.29.0.gfm.1.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 31 All All All
Operating System Fedoraproject Fedora 32 All All All
Operating System Fedoraproject Fedora 33 All All All
Application Github Flavored Markdown Project Github Flavored Markdown All All All All
Application Github Flavored Markdown Project Github Flavored Markdown All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 32 Update: pandoc-2.7.3-4.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Merge pull request from GHSA-7gc6-9qr5-hc85 · github/cmark-gfm@85d8952 · GitHub MISC github.com Patch, Third Party Advisory
Denial of service in table parsing · Advisory · github/cmark-gfm · GitHub CONFIRM github.com Third Party Advisory
[SECURITY] Fedora 33 Update: pandoc-citeproc-0.17.0.1-3.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 31 Update: ghc-cmark-gfm-0.2.2-1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 31 Update: ghc-cmark-gfm-0.2.2-1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 32 Update: pandoc-2.7.3-4.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 33 Update: pandoc-citeproc-0.17.0.1-3.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 940402 AlmaLinux Security Update for pandoc (ALSA-2021:1972)
  • 960207 Rocky Linux Security Update for pandoc (RLSA-2021:1972)

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