RHBA-2012:0048 - Bug Fix Advisory

Topic

An updated rhev-hypervisor6 package that fixes various bugs is now available.

Description

The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization
Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor
is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes
everything necessary to run and manage virtual machines: A subset of the
Red Hat Enterprise Linux operating environment and the Red Hat Enterprise
Virtualization Agent.

Note: Red Hat Enterprise Virtualization Hypervisor is only available for
the Intel 64 and AMD64 architectures with virtualization extensions.

This updated package provides updated components that include fixes for
various security issues. These issues have no security impact on Red Hat
Enterprise Virtualization Hypervisor itself, however. The security fixes
included in this update address the following CVE numbers:

CVE-2011-3905 and CVE-2011-3919 (libxml2 issues)

This updated package has been built to include updated vdsm and libvirt
packages in the hypervisor ISO image. The updated package versions are:

libvirt-0.9.4-23.el6_2.4
vdsm-4.9-112.4.el6_2

Further information on the changes made to each package is available on the
relevant errata:

vdsm: https://rhn.redhat.com/errata/RHBA-2012-0012.html libvirt: https://rhn.redhat.com/errata/RHBA-2012-0013.html

This updated package also fixes the following bugs:

• Previously, when an NIC was added to a bridge LRO would not automatically

be disabled if a bond was also present. The use of a bond and a bridge on
top of NICs using LRO presented serious performance degradation. This update
ensures that LRO is disabled on all NICs, avoiding this performance
degradation issue (BZ#773675).

• Previously, registering to RHN during autoinstall would fail. This was due

to the wrong RHN registration command being called. This patch changes this
logic, calling the correct RHN registration command (BZ#773676).

Users of the Red Hat Enterprise Virtualization Hypervisor are advised to
upgrade to this updated package, which fixes these bugs.

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

Affected Products

• Red Hat Virtualization 6 x86_64

Fixes

• BZ - 771394 - rhev-hypervisor6 6.2 Update 1.2 Release
• BZ - 773675 - Disable LRO for all NICs that have LRO enabled
• BZ - 773676 - Register to RHN by run command "ovirt-config-rhn" failed.

CVEs

(none)

References

(none)