CVE-2025-13120

Name	CVE-2025-13120
Description	A vulnerability has been found in mruby up to 3.4.0. This vulnerability affects the function sort_cmp of the file src/array.c. Such manipulation leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The name of the patch is eb398971bfb43c38db3e04528b68ac9a7ce509bc. It is advisable to implement a patch to correct this issue.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
mruby (PTS)	bullseye	2.1.2-3	vulnerable
	bookworm	3.1.0-3	vulnerable
	trixie	3.3.0-1	vulnerable
	forky, sid	3.4.0-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
mruby	source	(unstable)	(unfixed)

https://github.com/mruby/mruby/issues/6649
Fixed by: https://github.com/mruby/mruby/commit/eb398971bfb43c38db3e04528b68ac9a7ce509bc