CVE-2026-42015

Name	CVE-2026-42015
Description	A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of service (DoS) or potentially other unspecified impacts.
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)
References	DLA-4595-1, DSA-6281-1
Debian Bugs	1135319

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gnutls28 (PTS)	bookworm, bookworm (security)	3.7.9-2+deb12u7	fixed
	trixie (security), trixie	3.8.9-3+deb13u4	fixed
	forky, sid	3.8.13-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
gnutls28	source	bullseye	3.7.1-5+deb11u10	DLA-4595-1
gnutls28	source	bookworm	3.7.9-2+deb12u7	DSA-6281-1
gnutls28	source	trixie	3.8.9-3+deb13u4	DSA-6281-1
gnutls28	source	(unstable)	3.8.13-1		1135319

Notes

https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-11
https://gitlab.com/gnutls/gnutls/-/work_items/1840
Fixed by: https://gitlab.com/gnutls/gnutls/-/commit/a3e7c50d3e1761e5ef1d4b225507cab8f2b2c3ca (3.8.13)