CVE-2025-49796

Name	CVE-2025-49796
Description	A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1107752

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libxml2 (PTS)	bullseye	2.9.10+dfsg-6.7+deb11u4	vulnerable
	bullseye (security)	2.9.10+dfsg-6.7+deb11u7	vulnerable
	bookworm	2.9.14+dfsg-1.3~deb12u1	vulnerable
	bookworm (security)	2.9.14+dfsg-1.3~deb12u2	vulnerable
	sid, trixie	2.12.7+dfsg+really2.9.14-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libxml2	source	(unstable)	(unfixed)			1107752

[bookworm] - libxml2 <no-dsa> (Minor issue)
https://gitlab.gnome.org/GNOME/libxml2/-/issues/933