Debian dla-4504 : libnss-libvirt - security update

high Nessus Plugin ID 303208

Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4504 advisory.

- ----------------------------------------------------------------------- Debian LTS Advisory DLA-4504-1 [email protected] https://www.debian.org/lts/security/ Utkarsh Gupta March 20, 2026 https://wiki.debian.org/LTS
- -----------------------------------------------------------------------

Package : libvirt Version : 7.0.0-3+deb11u4 Debian Bug : 1124549

The latest update to src:linux for bullseye (via DLA 4404-1) caused a regression for libvirt (debian bug #1124549). This is due to libvirt passing a previously undefined flag to netlink that is now checked and rejected. This was fixed in libvirt 7.1.0 (upstream commit 81334002340b) so is not present in later Debian releases.

For Debian 11 bullseye, this problem has been fixed in version 7.0.0-3+deb11u4.

We recommend that you upgrade your libvirt packages.

For the detailed security status of libvirt please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/libvirt

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the libnss-libvirt packages.

See Also

https://security-tracker.debian.org/tracker/source-package/libvirt

https://packages.debian.org/source/bullseye/libvirt

Plugin Details

Severity: High

ID: 303208

File Name: debian_DLA-4504.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/20/2026

Updated: 3/20/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libvirt-daemon, p-cpe:/a:debian:debian_linux:libvirt0, p-cpe:/a:debian:debian_linux:libvirt-daemon-driver-lxc, p-cpe:/a:debian:debian_linux:libvirt-daemon-driver-storage-zfs, p-cpe:/a:debian:debian_linux:libvirt-daemon-driver-xen, p-cpe:/a:debian:debian_linux:libvirt-clients, p-cpe:/a:debian:debian_linux:libvirt-daemon-driver-qemu, p-cpe:/a:debian:debian_linux:libvirt-daemon-driver-storage-rbd, p-cpe:/a:debian:debian_linux:libvirt-daemon-system-sysv, p-cpe:/a:debian:debian_linux:libvirt-daemon-system, p-cpe:/a:debian:debian_linux:libvirt-daemon-config-nwfilter, p-cpe:/a:debian:debian_linux:libvirt-wireshark, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libvirt-daemon-driver-storage-gluster, p-cpe:/a:debian:debian_linux:libvirt-sanlock, p-cpe:/a:debian:debian_linux:libvirt-dev, p-cpe:/a:debian:debian_linux:libnss-libvirt, p-cpe:/a:debian:debian_linux:libvirt-daemon-driver-storage-iscsi-direct, p-cpe:/a:debian:debian_linux:libvirt-daemon-system-systemd, p-cpe:/a:debian:debian_linux:libvirt-doc, p-cpe:/a:debian:debian_linux:libvirt-daemon-config-network, p-cpe:/a:debian:debian_linux:libvirt-login-shell, p-cpe:/a:debian:debian_linux:libvirt-daemon-driver-vbox

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/20/2026

Vulnerability Publication Date: 3/20/2026