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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.1260
          Moderate: rhev-hypervisor6 security and bug fix update
                               30 July 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           rhev-hypervisor6
Publisher:         Red Hat
Operating System:  Red Hat
Impact/Access:     Reduced Security -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-1491  

Reference:         ASB-2014.0077
                   ASB-2014.0016.2
                   ESB-2014.1210
                   ESB-2014.0177

Original Bulletin: 
   https://rhn.redhat.com/errata/RHSA-2014-0979.html

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                   Red Hat Security Advisory

Synopsis:          Moderate: rhev-hypervisor6 security and bug fix update
Advisory ID:       RHSA-2014:0979-01
Product:           Red Hat Enterprise Virtualization
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-0979.html
Issue date:        2014-07-29
CVE Names:         CVE-2014-1491 
=====================================================================

1. Summary:

An updated rhev-hypervisor6 package that fixes one security issue is now
available.

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:

RHEV Hypervisor for RHEL-6 - noarch

3. 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.

It was found that NSS accepted weak Diffie-Hellman Key exchange (DHKE)
parameters. This could possibly lead to weak encryption being used in
communication between the client and the server. (CVE-2014-1491)

Red Hat would like to thank the Mozilla project for reporting the
CVE-2014-1491 issue. Upstream acknowledges Antoine Delignat-Lavaud and
Karthikeyan Bhargavan as the original reporters of CVE-2014-1491.

This update includes changes to the rhev-hypervisor component:

* The most recent build of rhev-hypervisor is included in version 3.4.1.
(BZ#1118298)

This updated package also 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-2014-4699 and CVE-2014-4943 (kernel issues)

CVE-2014-4607 (lzo issue)

CVE-2013-1740, CVE-2014-1490, CVE-2014-1492, CVE-2014-1545, and
CVE-2014-1544 (nss and nspr issues)

Users of the Red Hat Enterprise Virtualization Hypervisor are advised to
upgrade to this updated package.

4. Solution:

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/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/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html

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

1060955 - CVE-2014-1491 nss: Do not allow p-1 as a public DH value (MFSA 2014-12)
1118298 - Packaging rhev-hypervisor for 6.5.6 and 3.4.1

6. Package List:

RHEV Hypervisor for RHEL-6:

noarch:
rhev-hypervisor6-6.5-20140725.0.el6ev.noarch.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-2014-1491.html
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Hypervisor_Deployment_Guide/chap-Deployment_Guide-Upgrading_Red_Hat_Enterprise_Virtualization_Hypervisors.html

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2014 Red Hat, Inc.
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