[Pkg-libvirt-maintainers] Bug#1067461: libvirt: CVE-2024-2494

[Salvatore Bonaccorso]

Source: libvirt
Version: 10.1.0-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for libvirt.

CVE-2024-2494[0]:
| A flaw was found in the RPC library APIs of libvirt. The RPC server
| deserialization code allocates memory for arrays before the non-
| negative length check is performed by the C API entry points.
| Passing a negative length to the g_new0 function results in a crash
| due to the negative length being treated as a huge positive number.
| This flaw allows a local, unprivileged user to perform a denial of
| service attack by causing the libvirt daemon to crash.


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-2024-2494
    https://www.cve.org/CVERecord?id=CVE-2024-2494
[1] https://gitlab.com/libvirt/libvirt/-/commit/8a3f8d957507c1f8223fdcf25a3ff885b15557f2

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore