CVE-2021-26813

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Summary

CVECVE-2021-26813
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-03-03 16:15:00 UTC
Updated2023-11-07 03:31:00 UTC
Descriptionmarkdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.

Risk And Classification

Problem Types: CWE-1333

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 32 All All All
Operating System Fedoraproject Fedora 33 All All All
Operating System Fedoraproject Fedora 34 All All All
Application Markdown2 Project Markdown2 All All All All
Application Markdown2 Project Markdown2 All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 34 Update: python-markdown2-2.4.0-1.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 32 Update: python-markdown2-2.4.0-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 33 Update: python-markdown2-2.4.0-1.fc33 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 33 Update: python-markdown2-2.4.0-1.fc33 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 32 Update: python-markdown2-2.4.0-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 34 Update: python-markdown2-2.4.0-1.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Regex DOS fixes by nicholasserra · Pull Request #387 · trentm/python-markdown2 · GitHub MISC github.com Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180487 Debian Security Update for python-markdown2 (CVE-2021-26813)
  • 281216 Fedora Security Update for python (FEDORA-2021-e235a0da4a)
  • 281217 Fedora Security Update for python (FEDORA-2021-0337384e41)
  • 281218 Fedora Security Update for python (FEDORA-2021-77191478ad)
  • 750312 OpenSUSE Security Update for python-markdown2 (openSUSE-SU-2021:0429-1)
  • 980628 Python (pip) Security Update for markdown2 (GHSA-jr9p-r423-9m2r)

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