CVE-2023-22485

Published Jan 24, 2023

Last updated 2 years ago

Overview

Description: cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior 0.29.0.gfm.7, a crafted markdown document can trigger an out-of-bounds read in the `validate_protocol` function. We believe this bug is harmless in practice, because the out-of-bounds read accesses `malloc` metadata without causing any visible damage.This vulnerability has been patched in 0.29.0.gfm.7.
Source: security-advisories@github.com
NVD status: Analyzed

Hype score: Not currently trending

Risk scores

CVSS 3.1

Type: Primary
Base score: 5.3
Impact score: 1.4
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Severity: MEDIUM

Weaknesses

nvd@nist.gov: CWE-91
security-advisories@github.com: CWE-125

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "BEFD0856-0CFF-4D0F-B9D5-02F4A537C5CE",
            "versionEndExcluding": "0.29.0.gfm.7"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

Overview

Social media

Risk scores

CVSS 3.1

Weaknesses

Configurations

References