RHEL 6 : qemu-kvm (RHSA-2011:0345)

This script is Copyright (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated qemu-kvm packages that fix one security issue are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

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. Virtual Network
Computing (VNC) is a remote display system.

A flaw was found in the way the VNC 'password' option was handled.
Clearing a password disabled VNC authentication, allowing a remote
user able to connect to the virtual machines' VNC ports to open a VNC
session without authentication. (CVE-2011-0011)

All users of qemu-kvm should upgrade to these updated packages, which
contain a backported patch to resolve this issue. 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.

See also :

https://www.redhat.com/security/data/cve/CVE-2011-0011.html
http://rhn.redhat.com/errata/RHSA-2011-0345.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:A/AC:H/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 3.6
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 63974 ()

Bugtraq ID: 45743

CVE ID: CVE-2011-0011