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Red Hat Product Errata RHSA-2014:0979 - Security Advisory
Issued:
2014-07-29
Updated:
2014-07-29

RHSA-2014:0979 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: rhev-hypervisor6 security and bug fix update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

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.

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.

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

Affected Products

  • Red Hat Virtualization 6 x86_64

Fixes

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

CVEs

  • CVE-2014-1491

References

  • 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
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Virtualization 6

SRPM
rhev-hypervisor6-6.5-20140725.0.el6ev.src.rpm SHA-256: 571eaebdd4a05150bb7c9ec4652eade0ff99f8e23e4958b7aa78972ce8e45e16
x86_64
rhev-hypervisor6-6.5-20140725.0.el6ev.noarch.rpm SHA-256: a078067607d81c076a153c8cbe30c3a1c966efaa0b7639f0ef655527c06afbc1

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

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