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Security Advisory Moderate: rhev-hypervisor security and bug fix update

Advisory: RHSA-2011:1090-1
Type: Security Advisory
Severity: Moderate
Issued on: 2011-07-27
Last updated on: 2011-07-27
Affected Products: Red Hat Enterprise Virtualization
CVEs (cve.mitre.org): CVE-2011-1576

Details

An updated rhev-hypervisor package that fixes one security issue and
several bugs 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.

The rhev-hypervisor 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 that allowed napi_reuse_skb() to be called on VLAN
(virtual LAN) packets. An attacker on the local network could trigger this
flaw by sending specially-crafted packets to a target system, possibly
causing a denial of service. (CVE-2011-1576)

Red Hat would like to thank Ryan Sweat for reporting CVE-2011-1576.

This updated package provides updated components that include fixes for
security issues; however, these issues have no security impact for Red Hat
Enterprise Virtualization Hypervisor. These fixes are for bash issue
CVE-2008-5374; curl issue CVE-2011-2192; kernel issues CVE-2010-4649,
CVE-2011-0695, CVE-2011-0711, CVE-2011-1044, CVE-2011-1182, CVE-2011-1573,
CVE-2011-1593, CVE-2011-1745, CVE-2011-1746, CVE-2011-1776, CVE-2011-1780,
CVE-2011-1936, CVE-2011-2022, CVE-2011-2213, CVE-2011-2492, CVE-2011-2525,
and CVE-2011-2689; libvirt issue CVE-2011-2511; and rsync issue
CVE-2007-6200.

This update also fixes several bugs. Documentation for these bug fixes will
be available shortly from the Technical Notes document linked to in the
References section.

As Red Hat Enterprise Virtualization Hypervisor is based on KVM, the bug
fixes from the KVM update RHBA-2011:1068 have been included in this update:

https://rhn.redhat.com/errata/RHBA-2011-1068.html

Users of Red Hat Enterprise Virtualization Hypervisor are advised to
upgrade to this updated package, which resolves this issue and fixes the
bugs noted in the Technical Notes.


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

Updated packages

Red Hat Enterprise Virtualization

x86_64:
rhev-hypervisor-5.7-20110725.1.el5.noarch.rpm
File outdated by:  RHBA-2012:0015
    MD5: 22d49e8a5fe871644ab4af8108152d13
SHA-256: 36e554d6cb12c043a26bb56af35764ab76bb9bfb242211decca0d3d2fab546d8
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

629830 - Wipe metadata on local disks before RHEV-H installs
633919 - Adding log rotation to /var/log/brcm-iscsi.log
664378 - Timeout of the registration to RHN Satellite is more than expected
667434 - RHEV: "single" kernel boot argument should be added to kill list
681984 - RFE: request to include useful debugging tools
690691 - Remove rhev-hypervisor-pxe subpackage which is no longer used
695173 - CVE-2011-1576 kernel: net: Fix memory leak/corruption on VLAN GRO_DROP
698469 - RFE: systemtap-runtime inclusion
708959 - dirty install fail at partition sometimes as race condition


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

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