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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: qemu-kvm security update
Advisory ID:       RHSA-2011:0345-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2011:0345.html
Issue date:        2011-03-10
CVE Names:         CVE-2011-0011 
====================================================================
1. Summary:

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - x86_64
Red Hat Enterprise Linux Workstation (v. 6) - x86_64

3. 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. 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.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

668589 - CVE-2011-0011 qemu-kvm: Setting VNC password to empty string silently disables all authentication

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:

x86_64:
qemu-img-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.113.el6_0.8.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:

x86_64:
qemu-img-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.113.el6_0.8.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

x86_64:
qemu-img-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.113.el6_0.8.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

x86_64:
qemu-img-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-debuginfo-0.12.1.2-2.113.el6_0.8.x86_64.rpm
qemu-kvm-tools-0.12.1.2-2.113.el6_0.8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-0011.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2011 Red Hat, Inc.
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