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Debian DSA-3088-1 : qemu-kvm - security update

medium Nessus Plugin ID 79729

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Synopsis

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

Description

Paolo Bonzini of Red Hat discovered that the blit region checks were insufficient in the Cirrus VGA emulator in qemu-kvm, a full virtualization solution on x86 hardware. A privileged guest user could use this flaw to write into qemu address space on the host, potentially escalating their privileges to those of the qemu host process.

Solution

Upgrade the qemu-kvm packages.

For the stable distribution (wheezy), this problem has been fixed in version 1.1.2+dfsg-6+deb7u6.

See Also

https://packages.debian.org/source/wheezy/qemu-kvm

https://www.debian.org/security/2014/dsa-3088

Plugin Details

Severity: Medium

ID: 79729

File Name: debian_DSA-3088.nasl

Version: 1.8

Type: local

Agent: unix

Published: 12/5/2014

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:qemu-kvm, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/4/2014

Reference Information

CVE: CVE-2014-8106

DSA: 3088