[xml/sgml-pkgs] Bug#1053629: libxml2: CVE-2023-45322

[Salvatore Bonaccorso]

Source: libxml2
Version: 2.9.14+dfsg-1.3
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/libxml2/-/issues/583
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for libxml2.

CVE-2023-45322[0]:
| libxml2 through 2.11.5 has a use-after-free that can only occur
| after a certain memory allocation fails. This occurs in
| xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't
| think these issues are critical enough to warrant a CVE ID ...
| because an attacker typically can't control when memory allocations
| fail."


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-2023-45322
    https://www.cve.org/CVERecord?id=CVE-2023-45322
[1] https://gitlab.gnome.org/GNOME/libxml2/-/issues/583
[2] https://gitlab.gnome.org/GNOME/libxml2/-/commit/d39f78069dff496ec865c73aa44d7110e429bce9
[3] http://www.openwall.com/lists/oss-security/2023/10/06/5

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore