RHSA-2012:1505 - Security Advisory

Topic

An updated rhev-hypervisor6 package that fixes one security issue, various
bugs, and adds enhancements is now available.

The Red Hat Security Response Team has rated this update as having
important 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

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.

A flaw was found in the way Red Hat Enterprise Virtualization Hypervisor
hosts were added to the Red Hat Enterprise Virtualization environment. The
Python scripts needed to configure the host for Red Hat Enterprise
Virtualization were downloaded in an insecure way, that is, without
properly validating SSL certificates during HTTPS connections. An attacker
on the local network could use this flaw to conduct a man-in-the-middle
attack, potentially gaining root access to the host being added to the Red
Hat Enterprise Virtualization environment. This update provides the VDSM
part of the fix. The RHSA-2012:1506 Red Hat Enterprise Virtualization
Manager update must also be installed to completely fix this issue.
(CVE-2012-0861)

The CVE-2012-0861 issue was discovered by Red Hat.

This updated package provides updated components that include a fix for one
security issue. This issue had no security impact on Red Hat Enterprise
Virtualization Hypervisor itself, however. The security fix included in
this update addresses the following CVE number:

CVE-2012-0860 (VDSM issue)

This updated Red Hat Enterprise Virtualization Hypervisor package also
fixes the following bug:

• This update adds Hypervisor support for use in Red Hat Enterprise

Virtualization 3.1 compatible clusters. (BZ#846811)

This update includes:

• A fence-agents bug fix update (RHBA-2012:1439).

https://rhn.redhat.com/errata/RHBA-2012-1439.html

• An ovirt-node bug fix update (RHBA-2012:1500).

https://rhn.redhat.com/errata/RHBA-2012-1500.html

• A libvirt bug fix update (RHBA-2012:1501).

https://rhn.redhat.com/errata/RHBA-2012-1501.html

• A sanlock bug fix and enhancement update (RHBA-2012:1507).

https://rhn.redhat.com/errata/RHBA-2012-1507.html

• An important vdsm security and enhancement update (RHSA-2012:1508).

https://rhn.redhat.com/errata/RHBA-2012-1508.html

• A qemu-kvm-rhev bug fix update (RHBA-2012:1510).

https://rhn.redhat.com/errata/RHBA-2012-1510.html

Users of the Red Hat Enterprise Virtualization Hypervisor are advised to
upgrade to this updated package, which includes these security updates, bug
fixes and enhancements.

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/knowledge/articles/11258

To upgrade Hypervisors in Red Hat Enterprise Virtualization
environments using the disk image provided by this package, refer to:

https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html

Affected Products

• Red Hat Virtualization 6 x86_64

Fixes

• BZ - 790754 - CVE-2012-0861 rhev: vds_installer is prone to MITM when downloading 2nd stage installer

CVEs

• CVE-2012-0861

References

• https://access.redhat.com/security/updates/classification/#important
• https://rhn.redhat.com/errata/RHBA-2012-1439.html
• https://rhn.redhat.com/errata/RHBA-2012-1500.html
• https://rhn.redhat.com/errata/RHBA-2012-1501.html
• https://rhn.redhat.com/errata/RHBA-2012-1507.html
• https://rhn.redhat.com/errata/RHBA-2012-1508.html
• https://rhn.redhat.com/errata/RHBA-2012-1510.html
• https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html