Issued:
2011-03-10
Updated:
2011-03-10

RHSA-2011:0345 - Moderate: qemu-kvm security update

Synopsis

Moderate: qemu-kvm security update

Type/Severity

Security Advisory Moderate

Topic

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.

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.

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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Desktop6x86_64

Updated Packages

  • qemu-img-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-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
  • qemu-kvm-0.12.1.2-2.113.el6_0.8.src.rpm

Fixes

CVEs

References

Additional information