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Alerts This Week
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Red Hat 5 RHSA-2013:0599-01 Important: Xen Buffer Overflow Security Fix

red hat
Calendar Grey March 6, 2013
Scroller Redhat
New xen package updates have been released for Red Hat 5 to address a serious buffer overflow vulnerability. Immediate upgrade recommended.
Updated xen packages that fix one security issue are now available for Red Hat Enterprise Linux 5

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

Summary

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.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow important security impact virtualization xen update RHEL 5

References

https://access.redhat.com/security/cve/CVE-2012-6075 https://access.redhat.com/security/updates/classification/#important

Package List

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

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:0599-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:0599.html
Issue date: 2013-03-06

Topic

Updated xen packages that fix one security issue are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow important security impact virtualization xen update RHEL 5

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

Bugs Fixed

889301 - CVE-2012-6075 qemu: e1000 driver buffer overflow when processing large packets when SBP and LPE flags are disabled

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