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Red Hat Security Advisory 2013-0599-01

Red Hat Security Advisory 2013-0599-01
Posted Mar 7, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0599-01 - 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. 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.

tags | advisory, remote, arbitrary, kernel, root
systems | linux, redhat
advisories | CVE-2012-6075
MD5 | 2a41530a4acf33cbff02138b0f6b6e63

Red Hat Security Advisory 2013-0599-01

Change Mirror Download
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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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