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Ubuntu Security Notice USN-2209-1
May 07, 2014

libvirt vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 13.10

Summary:

Several security issues were fixed in libvirt.

Software Description:
– libvirt: Libvirt virtualization toolkit

Details:

It was discovered that libvirt incorrectly handled symlinks when using the
LXC driver. An attacker could possibly use this issue to delete host
devices, create arbitrary nodes, and shutdown or power off the host.
(CVE-2013-6456)

Marian Krcmarik discovered that libvirt incorrectly handled seamless SPICE
migrations. An attacker could possibly use this issue to cause a denial of
service. (CVE-2013-7336)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 13.10:
libvirt-bin 1.1.1-0ubuntu8.11
libvirt0 1.1.1-0ubuntu8.11

After a standard system update you need to reboot your computer to make all
the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2209-1
CVE-2013-6456, CVE-2013-7336

Package Information:
https://launchpad.net/ubuntu/+source/libvirt/1.1.1-0ubuntu8.11

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