Debian DLA-541-1 : libvirt security update

critical Nessus Plugin ID 91921

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Synopsis

The remote Debian host is missing a security update.

Description

It was discovered that there was a password policy issue in libvirt, a library for interfacing with different virtualization systems.

Setting an empty graphics password is documented as a way to disable VNC/SPICE access, but QEMU does not always behave like that. VNC would happily accept the empty password. We enforce the behavior by setting password expiration to 'now'.

For Debian 7 'Wheezy', this issue has been fixed in libvirt version 0.9.12.3-1+deb7u2.

We recommend that you upgrade your libvirt packages.

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.

Solution

Upgrade the affected packages.

Plugin Details

Severity: Critical

ID: 91921

File Name: debian_DLA-541.nasl

Version: 2.8

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 7/5/2016

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libvirt-bin, p-cpe:/a:debian:debian_linux:python-libvirt, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:libvirt-dev, p-cpe:/a:debian:debian_linux:libvirt-doc, p-cpe:/a:debian:debian_linux:libvirt0, p-cpe:/a:debian:debian_linux:libvirt0-dbg

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/1/2016

Reference Information

CVE: CVE-2016-5008

Detections

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