Scientific Linux Security Update : qemu-kvm on SL6.x x86_64

high Nessus Plugin ID 61047

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. qemu-kvm is the user-space component for running virtual machines using KVM.

It was found that the virtio-blk driver in qemu-kvm did not properly validate read and write requests from guests. A privileged guest user could use this flaw to crash the guest or, possibly, execute arbitrary code on the host. (CVE-2011-1750)

It was found that the PIIX4 Power Management emulation layer in qemu-kvm did not properly check for hot plug eligibility during device removals. A privileged guest user could use this flaw to crash the guest or, possibly, execute arbitrary code on the host.
(CVE-2011-1751)

This update also fixes several bugs and adds various enhancements.

All users of qemu-kvm should upgrade to these updated packages, which contain backported patches to resolve these issues, and fix the bugs and add the enhancements.

After installing this update, shut down all running virtual machines.
Once all virtual machines have shut down, start them again for this update to take effect.

Solution

Update the affected qemu-img, qemu-kvm and / or qemu-kvm-tools packages.

See Also

http://www.nessus.org/u?19ff8094

Plugin Details

Severity: High

ID: 61047

File Name: sl_20110519_qemu_kvm_on_SL6_x.nasl

Version: 1.5

Type: local

Agent: unix

Published: 8/1/2012

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 7.4

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

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 5/19/2011

Reference Information

CVE: CVE-2011-1750, CVE-2011-1751