- Issued:
- 2013-02-07
- Updated:
- 2013-02-07
RHSA-2013:0241 - Moderate: xen security update
Synopsis
Moderate: xen security update
Type/Severity
Security Advisory Moderate
Topic
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 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.
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 libxc, the Xen control library, handled excessively large kernel and ramdisk images when starting new guests. A privileged guest user in a para-virtualized guest (a DomU) could create a crafted kernel or ramdisk image that, when attempting to use it during guest start, could result in an out-of-memory condition in the privileged domain (the Dom0). (CVE-2012-4544)
Red Hat would like to thank the Xen project for reporting this issue.
All users of xen are advised to upgrade to these updated packages, which correct this issue. After installing the updated packages, the xend service must be restarted for this update to take effect.
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
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.9 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.9 | ia64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.9 | i386 |
| Red Hat Enterprise Linux Workstation | 5 | x86_64 |
| Red Hat Enterprise Linux Workstation | 5 | i386 |
| Red Hat Enterprise Linux Server | 5 | x86_64 |
| Red Hat Enterprise Linux Server | 5 | ia64 |
| Red Hat Enterprise Linux Server | 5 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 5 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 5 | i386 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 5.9 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 5.9 | i386 |
| Red Hat Enterprise Linux Server - AUS | 5.9 | x86_64 |
| Red Hat Enterprise Linux Server - AUS | 5.9 | ia64 |
| Red Hat Enterprise Linux Server - AUS | 5.9 | i386 |
| Red Hat Enterprise Linux Desktop | 5 | x86_64 |
| Red Hat Enterprise Linux Desktop | 5 | i386 |
Updated Packages
- xen-3.0.3-142.el5_9.1.x86_64.rpm
- xen-devel-3.0.3-142.el5_9.1.x86_64.rpm
- xen-3.0.3-142.el5_9.1.src.rpm
- xen-devel-3.0.3-142.el5_9.1.ia64.rpm
- xen-debuginfo-3.0.3-142.el5_9.1.i386.rpm
- xen-debuginfo-3.0.3-142.el5_9.1.x86_64.rpm
- xen-3.0.3-142.el5_9.1.i386.rpm
- xen-devel-3.0.3-142.el5_9.1.i386.rpm
- xen-debuginfo-3.0.3-142.el5_9.1.ia64.rpm
- xen-libs-3.0.3-142.el5_9.1.ia64.rpm
- xen-libs-3.0.3-142.el5_9.1.i386.rpm
- xen-libs-3.0.3-142.el5_9.1.x86_64.rpm
- xen-3.0.3-142.el5_9.1.ia64.rpm
Fixes
CVEs
References
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.