Please Install the Updated Packages.

It was discovered that libvirt used the pkcheck tool in an unsafe manner. A local attacker could possibly use this flaw to bypass polkit authentication. In Ubuntu, libvirt polkit authentication is not enabled by default. (CVE-2013-4311) It was discovered that libvirt incorrectly handled certain memory stats requests. A remote attacker could use this issue to cause libvirt to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 12.10, and Ubuntu 13.04. (CVE-2013-4296) It was discovered that libvirt incorrectly handled certain bitmap operations. A remote attacker could use this issue to cause libvirt to crash, resulting in a denial of service. This issue only affected Ubuntu 13.04. (CVE-2013-5651)

libvirt on Ubuntu 13.04 , Ubuntu 12.10 , Ubuntu 12.04 LTS , Ubuntu 10.04 LTS

• https://lists.ubuntu.com/archives/ubuntu-security-announce/2013-September/002246.html

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Updated on 2015-03-25