CVE-2025-14957

Name	CVE-2025-14957
Description	A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer dereference. Local access is required to approach this attack. The exploit is publicly available and might be used. The name of the patch is 6fb2b917a79578ab44cf3b900a6da4c27251e0d4. Applying a patch is advised to resolve 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
binaryen (PTS)	bullseye	99-3	vulnerable
	bookworm	108-1	vulnerable
	forky, sid, trixie	120-4	vulnerable

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

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

Notes

https://github.com/WebAssembly/binaryen/issues/8090
https://github.com/WebAssembly/binaryen/pull/8099
Fixed by: https://github.com/WebAssembly/binaryen/commit/6fb2b917a79578ab44cf3b900a6da4c27251e0d4