Scientific Linux Security Update : kvm on SL5.x x86_64

Medium Nessus Plugin ID 60913

Synopsis

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

Description

A flaw was found in the way QEMU-KVM handled the reloading of fs and gs segment registers when they had invalid selectors. A privileged host user with access to '/dev/kvm' could use this flaw to crash the host (denial of service). (CVE-2010-3698)

The following procedure must be performed before this update will take effect :

1) Stop all KVM guest virtual machines.

2) Either reboot the hypervisor machine or, as the root user, remove (using 'modprobe -r [module]') and reload (using 'modprobe [module]') all of the following modules which are currently running (determined using 'lsmod'): kvm, ksm, kvm-intel or kvm-amd.

3) Restart the KVM guest virtual machines.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?b16549b3

Plugin Details

Severity: Medium

ID: 60913

File Name: sl_20101206_kvm_on_SL5_x.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2012/08/01

Updated: 2019/01/02

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/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: 2010/12/06

Reference Information

CVE: CVE-2010-3698