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[RHSA-2015:2065-01] Important: xen security update



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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: xen security update
Advisory ID:       RHSA-2015:2065-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2015-2065.html
Issue date:        2015-11-16
CVE Names:         CVE-2015-5279 
=====================================================================

1. Summary:

Updated xen packages that fix one security issue are now available for Red
Hat Enterprise Linux 5.

Red Hat Product Security 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 heap buffer overflow flaw was found in the way QEMU's NE2000 NIC
emulation implementation handled certain packets received over the network.
A privileged user inside a guest could use this flaw to crash the QEMU
instance (denial of service) or potentially execute arbitrary code on the
host. (CVE-2015-5279)

Red Hat would like to thank Qinghao Tang of QIHU 360 Inc. for reporting
this issue.

All xen users are advised to upgrade to these updated packages, which
contain a backported patch to 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.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1256672 - CVE-2015-5279 qemu: Heap overflow vulnerability in ne2000_receive() function

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
xen-3.0.3-147.el5_11.src.rpm

i386:
xen-debuginfo-3.0.3-147.el5_11.i386.rpm
xen-libs-3.0.3-147.el5_11.i386.rpm

x86_64:
xen-debuginfo-3.0.3-147.el5_11.i386.rpm
xen-debuginfo-3.0.3-147.el5_11.x86_64.rpm
xen-libs-3.0.3-147.el5_11.i386.rpm
xen-libs-3.0.3-147.el5_11.x86_64.rpm

RHEL Desktop Multi OS (v. 5 client):

Source:
xen-3.0.3-147.el5_11.src.rpm

i386:
xen-3.0.3-147.el5_11.i386.rpm
xen-debuginfo-3.0.3-147.el5_11.i386.rpm
xen-devel-3.0.3-147.el5_11.i386.rpm

x86_64:
xen-3.0.3-147.el5_11.x86_64.rpm
xen-debuginfo-3.0.3-147.el5_11.i386.rpm
xen-debuginfo-3.0.3-147.el5_11.x86_64.rpm
xen-devel-3.0.3-147.el5_11.i386.rpm
xen-devel-3.0.3-147.el5_11.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
xen-3.0.3-147.el5_11.src.rpm

i386:
xen-debuginfo-3.0.3-147.el5_11.i386.rpm
xen-libs-3.0.3-147.el5_11.i386.rpm

ia64:
xen-debuginfo-3.0.3-147.el5_11.ia64.rpm
xen-libs-3.0.3-147.el5_11.ia64.rpm

x86_64:
xen-debuginfo-3.0.3-147.el5_11.i386.rpm
xen-debuginfo-3.0.3-147.el5_11.x86_64.rpm
xen-libs-3.0.3-147.el5_11.i386.rpm
xen-libs-3.0.3-147.el5_11.x86_64.rpm

RHEL Virtualization (v. 5 server):

Source:
xen-3.0.3-147.el5_11.src.rpm

i386:
xen-3.0.3-147.el5_11.i386.rpm
xen-debuginfo-3.0.3-147.el5_11.i386.rpm
xen-devel-3.0.3-147.el5_11.i386.rpm

ia64:
xen-3.0.3-147.el5_11.ia64.rpm
xen-debuginfo-3.0.3-147.el5_11.ia64.rpm
xen-devel-3.0.3-147.el5_11.ia64.rpm

x86_64:
xen-3.0.3-147.el5_11.x86_64.rpm
xen-debuginfo-3.0.3-147.el5_11.i386.rpm
xen-debuginfo-3.0.3-147.el5_11.x86_64.rpm
xen-devel-3.0.3-147.el5_11.i386.rpm
xen-devel-3.0.3-147.el5_11.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/

7. References:

https://access.redhat.com/security/cve/CVE-2015-5279
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 2015 Red Hat, Inc.
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