CVE-2023-37463

2023-07-1320:15:09

Google

osv.dev

cmark-gfm

commonmark

markdown

resource exhaustion

denial of service

vulnerability

patch

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.1%

JSON

cmark-gfm is an extended version of the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. Three polynomial time complexity issues in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. These vulnerabilities have been patched in 0.29.0.gfm.12.

CPENameOperatorVersion
cmark-gfmeq0.28.0.gfm.6
cmark-gfmeq0.29.0.gfm.8
cmark-gfmeq0.28.3.gfm.14
cmark-gfmeq0.29.0.gfm.11
cmark-gfmeq0.29.0.gfm.10
cmark-gfmeq0.29.0.gfm.6
cmark-gfmeq0.28.3.gfm.12
cmark-gfmeq0.29.0.gfm.1
cmark-gfmeq0.28.3.gfm.15
cmark-gfmeq0.29.0.gfm.9

Name	Operator	Version
cmark-gfm	eq	0.28.0.gfm.6
cmark-gfm	eq	0.29.0.gfm.8
cmark-gfm	eq	0.28.3.gfm.14
cmark-gfm	eq	0.29.0.gfm.11
cmark-gfm	eq	0.29.0.gfm.10
cmark-gfm	eq	0.29.0.gfm.6
cmark-gfm	eq	0.28.3.gfm.12
cmark-gfm	eq	0.29.0.gfm.1
cmark-gfm	eq	0.28.3.gfm.15
cmark-gfm	eq	0.29.0.gfm.9