libvirt: CVE-2024-2494

Debian Bug report logs - #1067461
libvirt: CVE-2024-2494

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: libvirt: CVE-2024-2494

Date: Thu, 21 Mar 2024 21:47:11 +0100

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

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