Alerts This Week
Warning Icon 1 714
Alerts This Week
Warning Icon 1 714

Red Hat Enterprise Linux 5 RHSA-2009:0382 Moderate: Libvirt Security Fix

red hat
Calendar Grey March 19, 2009
Dist Redhat Esm H88
Recent updates to libvirt packages tackle notable security vulnerabilities in Red Hat Enterprise Linux 5. Discover more details regarding the resolution.
Updated libvirt packages that fix two security issues are now available for Red Hat Enterprise Linux 5

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

libvirt is a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. libvirt also provides tools for remotely managing virtualized systems.
The libvirtd daemon was discovered to not properly check user connection permissions before performing certain privileged actions, such as requesting migration of an unprivileged guest domain to another system. A local user able to establish a read-only connection to libvirtd could use this flaw to perform actions that should be restricted to read-write connections. (CVE-2008-5086)
libvirt_proxy, a setuid helper application allowing non-privileged users to communicate with the hypervisor, was discovered to not properly validate user requests. Local users could use this flaw to cause a stack-based buffer overflow in libvirt_proxy, possibly allowing them to run arbitrary code with root privileges. (CVE-2009-0036)
All users are advised to upgrade to these updated packages, which contain backported patches which resolve these issues. After installing the update, libvirtd must be restarted manually (for example, by issuing a "service libvirtd restart" command) for this change to take effect.

Topics%20covered

Topics Covered

security advisory buffer overflow software update access control Red Hat Enterprise Linux moderate severity libvirt

References

https://www.cve.org/CVERecord?id=CVE-2008-5086 https://www.cve.org/CVERecord?id=CVE-2009-0036 https://access.redhat.com/security/updates/classification#moderate

Package List

RHEL Desktop Multi OS (v. 5 client):
Source:
i386: libvirt-0.3.3-14.el5_3.1.i386.rpm libvirt-debuginfo-0.3.3-14.el5_3.1.i386.rpm libvirt-devel-0.3.3-14.el5_3.1.i386.rpm libvirt-python-0.3.3-14.el5_3.1.i386.rpm
x86_64: libvirt-0.3.3-14.el5_3.1.i386.rpm libvirt-0.3.3-14.el5_3.1.x86_64.rpm libvirt-debuginfo-0.3.3-14.el5_3.1.i386.rpm libvirt-debuginfo-0.3.3-14.el5_3.1.x86_64.rpm libvirt-devel-0.3.3-14.el5_3.1.i386.rpm libvirt-devel-0.3.3-14.el5_3.1.x86_64.rpm libvirt-python-0.3.3-14.el5_3.1.x86_64.rpm
RHEL Virtualization (v. 5 server):
Source:
i386: libvirt-0.3.3-14.el5_3.1.i386.rpm libvirt-debuginfo-0.3.3-14.el5_3.1.i386.rpm libvirt-devel-0.3.3-14.el5_3.1.i386.rpm libvirt-python-0.3.3-14.el5_3.1.i386.rpm
ia64: libvirt-0.3.3-14.el5_3.1.ia64.rpm libvirt-debuginfo-0.3.3-14.el5_3.1.ia64.rpm libvirt-devel-0.3.3-14.el5_3.1.ia64.rpm libvirt-python-0.3.3-14.el5_3.1.ia64.rpm
x86_64: libvirt-0.3.3-14.el5_3.1.i386.rpm libvirt-0.3.3-14.el5_3.1.x86_64.rpm libvirt-debuginfo-0.3.3-14.el5_3.1.i386.rpm libvirt-debuginfo-0.3.3-14.el5_3.1.x86_64.rpm libvirt-devel-0.3.3-14.el5_3.1.i386.rpm libvirt-devel-0.3.3-14.el5_3.1.x86_64.rpm libvirt-python-0.3.3-14.el5_3.1.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

Read the Full Advisory


Advisory ID: RHSA-2009:0382-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:0382.html
Issue date: 2009-03-19

Topic

Updated libvirt packages that fix two security issues are now available forRed Hat Enterprise Linux 5.This update has been rated as having moderate security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory buffer overflow software update access control Red Hat Enterprise Linux moderate severity libvirt

Relevant Releases Architectures

RHEL Desktop Multi OS (v. 5 client) - i386, x86_64

RHEL Virtualization (v. 5 server) - i386, ia64, x86_64

Bugs Fixed

476560 - CVE-2008-5086 libvirt: missing checks for read-only connection

484947 - CVE-2009-0036 libvirt: libvirt_proxy buffer overflow

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here