CVEvulnerability

CVE-2020-5238

6.5 MEDIUM Published 2020-07-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-07-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
Weaknesses
CWE-20

Description

The 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.

Affected configurations

• github flavored markdown project github flavored markdown (< 0.29.0.gfm.1) • fedoraproject fedora 31 • fedoraproject fedora 32 • fedoraproject fedora 33

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References