| Name | CVE-2023-22486 |
| Description | cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 contain a polynomial time complexity issue in handle_close_bracket that may lead to unbounded resource exhaustion and subsequent denial of service. This vulnerability has been patched in 0.29.0.gfm.7. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| cmark-gfm (PTS) | buster | 0.28.3.gfm.19-3 | vulnerable |
| bullseye | 0.29.0.gfm.0-6 | vulnerable |
| bookworm, sid | 0.29.0.gfm.6-6 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| cmark-gfm | source | (unstable) | (unfixed) | | | |
Notes
https://github.com/github/cmark-gfm/security/advisories/GHSA-r572-jvj2-3m8p
https://github.com/github/cmark-gfm/commit/ece074cc3378f7a8dec0395f00123e9fa6981f7b (0.29.0.gfm.7)
check other codebase, python-cmarkgfm, ghostwriter, ruby-commonmarker and r-cran-commonmark