A libvirt security update has been released for Debian GNU/Linux

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Debian Security Advisory DSA-2194-1 security@debian.org
http://www.debian.org/security/ Thijs Kinkhorst
March 18, 2011 http://www.debian.org/security/faq
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Package : libvirt
Vulnerability : insufficient checks
Problem type : local
Debian-specific: no
CVE ID : CVE-2011-1146
Debian Bug : 617773

It was discovered that libvirt, a library for interfacing with different
virtualization systems, did not properly check for read-only connections.
This allowed a local attacker to perform a denial of service (crash) or
possibly escalate privileges.

The oldstable distribution (lenny) is not affected by this problem.

For the stable distribution (squeeze), this problem has been fixed in
version 0.8.3-5+squeeze1.

For the testing distribution (wheezy), this problem will be fixed soon.

For the unstable distribution (sid), this problem has been fixed in
version 0.8.8-3.

We recommend that you upgrade your libvirt packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/