CVE-2025-67873

Name	CVE-2025-67873
Description	Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, Skipdata length is not bounds-checked, so a user-provided skipdata callback can make cs_disasm/cs_disasm_iter memcpy more than 24 bytes into cs_insn.bytes, causing a heap buffer overflow in the disassembly path. Commit cbef767ab33b82166d263895f24084b75b316df3 fixes the 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)
Debian Bugs	1123740

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
capstone (PTS)	bullseye	4.0.2-3	vulnerable
	bookworm	4.0.2-5	vulnerable
	forky, sid, trixie	5.0.6-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
capstone	source	(unstable)	(unfixed)			1123740

Notes

https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg
Fixed by: https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3 (next)