CVE-2023-22485 Information

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.

Reference

https://github.com/github/cmark-gfm/security/advisories/GHSA-c944-cv5f-hpvr