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Red Hat Product Errata RHSA-2014:0041 - Security Advisory
Issued:
2014-01-21
Updated:
2014-01-21

RHSA-2014:0041 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: rhev-hypervisor6 security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An updated rhev-hypervisor6 package that fixes multiple security issues is
now available.

The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links 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.

Upgrade Note: If you upgrade Red Hat Enterprise Virtualization Hypervisor
6.4 to version 6.5 through the 3.3 Manager administration portal,
configuration of the previous system appears to be lost when reported in
the TUI. However, this is an issue in the TUI itself, not in the upgrade
process; the configuration of the system is not affected.

A flaw was found in the way NSS handled invalid handshake packets. A remote
attacker could use this flaw to cause a TLS/SSL client using NSS to crash
or, possibly, execute arbitrary code with the privileges of the user
running the application. (CVE-2013-5605)

A flaw was found in the way OpenSSL determined which hashing algorithm to
use when TLS protocol version 1.2 was enabled. This could possibly cause
OpenSSL to use an incorrect hashing algorithm, leading to a crash of an
application using the library. (CVE-2013-6449)

A NULL pointer dereference flaw was found in the way OpenSSL handled
TLS/SSL protocol handshake packets. A specially crafted handshake packet
could cause a TLS/SSL client using OpenSSL to crash. (CVE-2013-4353)

It was discovered that NSS did not reject certificates with incompatible
key usage constraints when validating them while the verifyLog feature was
enabled. An application using the NSS certificate validation API could
accept an invalid certificate. (CVE-2013-5606)

Red Hat would like to thank the Mozilla project for reporting
CVE-2013-5606. Upstream acknowledges Camilo Viecco as the original reporter
of CVE-2013-5606.

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-2013-6462 (libXfont issue)

CVE-2013-6629, and CVE-2013-6630 (libjpeg-turbo issues)

CVE-2013-1739, CVE-2013-1741, and CVE-2013-5607 (nss, nspr issues)

CVE-2013-6450 (openssl issue)

CVE-2013-6425 (pixman issue)

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

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/site/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 - 1005766 - [rhev-hypervisor6] Build rhev-hypervisor6 for 3.3 release
  • BZ - 1030807 - CVE-2013-5605 nss: Null_Cipher() does not respect maxOutputLen (MFSA 2013-103)
  • BZ - 1031457 - CVE-2013-5606 nss: CERT_VerifyCert returns SECSuccess (saying certificate is good) even for bad certificates (MFSA 2013-103)
  • BZ - 1045363 - CVE-2013-6449 openssl: crash when using TLS 1.2 caused by use of incorrect hash algorithm
  • BZ - 1049058 - CVE-2013-4353 openssl: client NULL dereference crash on malformed handshake packets

CVEs

  • CVE-2013-5606
  • CVE-2013-5605
  • CVE-2013-6449
  • CVE-2013-4353

References

  • https://access.redhat.com/security/updates/classification/#important
  • 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-hypervisor6-6.5-20140112.0.el6ev.src.rpm SHA-256: ebdc7f71f6fe2ba2a143ab40cb30d60eaf050636cc9abbd1334e87d320518ddd
x86_64
rhev-hypervisor6-6.5-20140112.0.el6ev.noarch.rpm SHA-256: cdde064ce3803059355b9559ce0f71c7970947ac2218fc7863d8cd9e79bb2914

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

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