Debian DLA-2395-1 : libvirt security update

medium Nessus Plugin ID 141137


The remote Debian host is missing a security update.


A double free vulnerability was discovered in libvirt, a toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes).

For Debian 9 stretch, this problem has been fixed in version 3.0.0-4+deb9u5.

We recommend that you upgrade your libvirt packages.

For the detailed security status of libvirt please refer to its security tracker page at:

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Upgrade the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 141137

File Name: debian_DLA-2395.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/5/2020

Updated: 10/13/2020

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libnss-libvirt, p-cpe:/a:debian:debian_linux:libvirt-clients, p-cpe:/a:debian:debian_linux:libvirt-daemon, p-cpe:/a:debian:debian_linux:libvirt-daemon-system, p-cpe:/a:debian:debian_linux:libvirt-dev, p-cpe:/a:debian:debian_linux:libvirt-doc, p-cpe:/a:debian:debian_linux:libvirt-sanlock, p-cpe:/a:debian:debian_linux:libvirt0, cpe:/o:debian:debian_linux:9.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/2/2020

Vulnerability Publication Date: 10/6/2020

Reference Information

CVE: CVE-2020-25637