CVE-2020-5238CWE-20

Denial of service in table parsing in cmark-gfm

Medium · published July 1, 2020

CVSS v3.1
6.5
EPSS
2%
Percentile
75.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01566 · 75.1th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2020-07-01T23:05Z
EPSS history
Timeline
  • 01 JUL 23:05Z
    Denial of service in table parsing in cmark-gfm
    cvelistv5