Scientific Linux Security Update : kvm on SL5.x x86_64

This script is Copyright (C) 2012 Tenable Network Security, Inc.


Synopsis :

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

Description :

A data structure field in kvm_vcpu_ioctl_x86_get_vcpu_events() in
QEMU-KVM was not initialized properly before being copied to
user-space. A privileged host user with access to '/dev/kvm' could use
this flaw to leak kernel stack memory to user-space. (CVE-2010-4525)

These updated packages also fix several bugs.

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.

See also :

http://www.nessus.org/u?610e7dbc

Solution :

Update the affected packages.

Risk factor :

Low / CVSS Base Score : 1.9
(CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 60934 ()

Bugtraq ID:

CVE ID: CVE-2010-4525