CVE-2022-24724
Assigner: GitHub_M
Published: 2022-03-03T19:35:09
State: PUBLISHED
affected: product: cmark-gfm
vendor: github
versions: status: affected
version: < 0.28.3.gfm.21
status: affected
version: >= 0.29.0.gfm.0, < 0.29.0.gfm.3
descriptions: value: cmark-gfm is GitHub's extended version of the C reference implementation of CommonMark. Prior to versions 0.29.0.gfm.3 and 0.28.3.gfm.21, an integer overflow in cmark-gfm's table row parsing `table.c:row_from_string` may lead to heap memory corruption when parsing tables who's marker rows contain more than UINT16_MAX columns. The impact of this heap corruption ranges from Information Leak to Arbitrary Code Execution depending on how and where `cmark-gfm` is used. If `cmark-gfm` is used for rendering remote user controlled markdown, this vulnerability may lead to Remote Code Execution (RCE) in applications employing affected versions of the `cmark-gfm` library. This vulnerability has been patched in the following cmark-gfm versions 0.29.0.gfm.3 and 0.28.3.gfm.21. A workaround is available. The vulnerability exists in the table markdown extensions of cmark-gfm. Disabling the table extension will prevent this vulnerability from being triggered.
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.8
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
version: 3.1
problemTypes: descriptions: cweId: CWE-190
description: CWE-190: Integer Overflow or Wraparound
type: CWE
source: advisory: GHSA-mc3g-88wq-6f4x
discovery: UNKNOWN
title: Integer overflow in table parsing extension leads to heap memory corruption