| Name | CVE-2025-49795 |
| Description | A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, 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 |
|---|
| libxml2 (PTS) | bullseye | 2.9.10+dfsg-6.7+deb11u4 | fixed |
| bullseye (security) | 2.9.10+dfsg-6.7+deb11u7 | fixed |
| bookworm | 2.9.14+dfsg-1.3~deb12u1 | fixed |
| bookworm (security) | 2.9.14+dfsg-1.3~deb12u2 | fixed |
| sid, trixie | 2.12.7+dfsg+really2.9.14-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libxml2 | source | (unstable) | (not affected) | | | |
Notes
- libxml2 <not-affected> (Vulnerable code introduced later in 2.10.0; bug #1107753)
https://gitlab.gnome.org/GNOME/libxml2/-/issues/932
Introduced by: https://gitlab.gnome.org/GNOME/libxml2/-/commit/2cc93f77543b5721257f795f303bfb56a4b384c7 (v2.10.0)
Fixed by: https://gitlab.gnome.org/GNOME/libxml2/-/commit/499bcb78ab389f60c2fd634ce410d4bb85c18765 (master)
Follow up: https://gitlab.gnome.org/GNOME/libxml2/-/commit/24d7e15914588cb45e7fb41cbe4fcf785e1a4861 (master)
Fixed by: https://gitlab.gnome.org/GNOME/libxml2/-/commit/c24909ba2601848825b49a60f988222da3019667 (2.14)