USN-2404-1: libvirt vulnerabilities

Releases

• Ubuntu 14.10
• Ubuntu 14.04 ESM

Packages

• libvirt - Libvirt virtualization toolkit

Details

Pavel Hrdina discovered that libvirt incorrectly handled locking when
processing the virConnectListAllDomains command. An attacker could use this
issue to cause libvirtd to hang, resulting in a denial of service.
(CVE-2014-3657)

Eric Blake discovered that libvirt incorrectly handled permissions when
processing the qemuDomainFormatXML command. An attacker with read-only
privileges could possibly use this to gain access to certain information
from the domain xml file. (CVE-2014-7823)

Update instructions

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

Ubuntu 14.10

• libvirt-bin - 1.2.8-0ubuntu11.1
• libvirt0 - 1.2.8-0ubuntu11.1

Ubuntu 14.04

• libvirt-bin - 1.2.2-0ubuntu13.1.7
• libvirt0 - 1.2.2-0ubuntu13.1.7

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

References

• CVE-2014-3657
• CVE-2014-7823