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Debian DSA-4566-1 : qemu - security update

high Nessus Plugin ID 130984

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Synopsis

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

Description

This update for QEMU, a fast processor emulator, backports support to passthrough the pschange-mc-no CPU flag. The virtualised MSR seen by a guest is set to show the bug as fixed, allowing to disable iTLB Multihit mitigations in nested hypervisors (cf. DSA 4564-1).

Solution

Upgrade the qemu packages.

For the stable distribution (buster), this problem has been fixed in version 1:3.1+dfsg-8+deb10u3.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944623

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

https://packages.debian.org/source/buster/qemu

https://www.debian.org/security/2019/dsa-4566

Plugin Details

Severity: High

ID: 130984

File Name: debian_DSA-4566.nasl

Version: 1.1

Type: local

Agent: unix

Published: 11/14/2019

Updated: 11/14/2019

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:qemu, cpe:/o:debian:debian_linux:10.0

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

Patch Publication Date: 11/12/2019

Vulnerability Publication Date: 11/12/2019

Reference Information

DSA: 4566