USN-1954-1: libvirt vulnerabilities
18 September 2013
Several security issues were fixed in libvirt.
Releases
Packages
- libvirt - Libvirt virtualization toolkit
Details
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)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 13.04
Ubuntu 12.10
Ubuntu 12.04
Ubuntu 10.04
After a standard system update you need to reboot your computer to make
all the necessary changes.