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AUSCERT External Security Bulletin Redistribution
ESB-2013.0334
Important: xen security update
7 March 2013
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: xen
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 5
Red Hat Enterprise Linux WS/Desktop 5
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Root Compromise -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2012-6075
Original Bulletin:
https://rhn.redhat.com/errata/RHSA-2013-0599.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than Red Hat. It is recommended that administrators
running xen check for an updated version of the software for their
operating system.
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Red Hat Security Advisory
Synopsis: Important: xen security update
Advisory ID: RHSA-2013:0599-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0599.html
Issue date: 2013-03-06
CVE Names: CVE-2012-6075
=====================================================================
1. Summary:
Updated xen packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.
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.
2. Relevant releases/architectures:
RHEL Desktop Multi OS (v. 5 client) - i386, x86_64
RHEL Virtualization (v. 5 server) - i386, ia64, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
3. Description:
The xen packages contain administration tools and the xend service for
managing the kernel-xen kernel for virtualization on Red Hat Enterprise
Linux.
A flaw was found in the way QEMU emulated the e1000 network interface card
when the host was configured to accept jumbo network frames, and a
fully-virtualized guest using the e1000 emulated driver was not. A remote
attacker could use this flaw to crash the guest or, potentially, execute
arbitrary code with root privileges in the guest. (CVE-2012-6075)
All users of xen are advised to upgrade to these updated packages, which
correct this issue. After installing the updated packages, all running
fully-virtualized guests must be restarted for this update to take effect.
4. 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
5. Bugs fixed (http://bugzilla.redhat.com/):
889301 - CVE-2012-6075 qemu: e1000 driver buffer overflow when processing large packets when SBP and LPE flags are disabled
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xen-3.0.3-142.el5_9.2.src.rpm
i386:
xen-debuginfo-3.0.3-142.el5_9.2.i386.rpm
xen-libs-3.0.3-142.el5_9.2.i386.rpm
x86_64:
xen-debuginfo-3.0.3-142.el5_9.2.i386.rpm
xen-debuginfo-3.0.3-142.el5_9.2.x86_64.rpm
xen-libs-3.0.3-142.el5_9.2.i386.rpm
xen-libs-3.0.3-142.el5_9.2.x86_64.rpm
RHEL Desktop Multi OS (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xen-3.0.3-142.el5_9.2.src.rpm
i386:
xen-3.0.3-142.el5_9.2.i386.rpm
xen-debuginfo-3.0.3-142.el5_9.2.i386.rpm
xen-devel-3.0.3-142.el5_9.2.i386.rpm
x86_64:
xen-3.0.3-142.el5_9.2.x86_64.rpm
xen-debuginfo-3.0.3-142.el5_9.2.i386.rpm
xen-debuginfo-3.0.3-142.el5_9.2.x86_64.rpm
xen-devel-3.0.3-142.el5_9.2.i386.rpm
xen-devel-3.0.3-142.el5_9.2.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xen-3.0.3-142.el5_9.2.src.rpm
i386:
xen-debuginfo-3.0.3-142.el5_9.2.i386.rpm
xen-libs-3.0.3-142.el5_9.2.i386.rpm
ia64:
xen-debuginfo-3.0.3-142.el5_9.2.ia64.rpm
xen-libs-3.0.3-142.el5_9.2.ia64.rpm
x86_64:
xen-debuginfo-3.0.3-142.el5_9.2.i386.rpm
xen-debuginfo-3.0.3-142.el5_9.2.x86_64.rpm
xen-libs-3.0.3-142.el5_9.2.i386.rpm
xen-libs-3.0.3-142.el5_9.2.x86_64.rpm
RHEL Virtualization (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xen-3.0.3-142.el5_9.2.src.rpm
i386:
xen-3.0.3-142.el5_9.2.i386.rpm
xen-debuginfo-3.0.3-142.el5_9.2.i386.rpm
xen-devel-3.0.3-142.el5_9.2.i386.rpm
ia64:
xen-3.0.3-142.el5_9.2.ia64.rpm
xen-debuginfo-3.0.3-142.el5_9.2.ia64.rpm
xen-devel-3.0.3-142.el5_9.2.ia64.rpm
x86_64:
xen-3.0.3-142.el5_9.2.x86_64.rpm
xen-debuginfo-3.0.3-142.el5_9.2.i386.rpm
xen-debuginfo-3.0.3-142.el5_9.2.x86_64.rpm
xen-devel-3.0.3-142.el5_9.2.i386.rpm
xen-devel-3.0.3-142.el5_9.2.x86_64.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-2012-6075.html
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2013 Red Hat, Inc.
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