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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-03-03T19:35:09

Updated: 2024-08-03T04:20:50.367Z

Reserved: 2022-02-10T00:00:00

Link: CVE-2022-24724

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-03-03T20:15:07.997

Modified: 2024-11-21T06:50:57.393

Link: CVE-2022-24724

cve-icon Redhat

Severity : Important

Publid Date: 2022-03-03T00:00:00Z

Links: CVE-2022-24724 - Bugzilla