[xml/sgml-pkgs] Bug#1107755: libxml2: CVE-2025-49794: Heap use after free (UAF) leads to Denial of service (DoS)

[Salvatore Bonaccorso]

Source: libxml2
Version: 2.12.7+dfsg+really2.9.14-1.3
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/libxml2/-/issues/931
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for libxml2.

CVE-2025-49794[0]:
| Heap use after free (UAF) leads to Denial of service (DoS) 


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2025-49794
    https://www.cve.org/CVERecord?id=CVE-2025-49794
[1] https://gitlab.gnome.org/GNOME/libxml2/-/issues/931

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore