CVE-2013-6436 Information

Description

The lxcDomainGetMemoryParameters method in lxc/lxc_driver.c in libvirt 1.0.5 through 1.2.0 does not properly check the status of LXC guests when reading memory tunables which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) via a guest in the shutdown status as demonstrated by the \virsh memtune\ command.

Reference

http://libvirt.org/git/?p=libvirt.git;a=commit;h=f8c1cb90213508c4f32549023b0572ed774e48aa http://lists.opensuse.org/opensuse-updates/2014-01/msg00004.html http://osvdb.org/101485 http://secunia.com/advisories/56245 http://secunia.com/advisories/60895 http://security.gentoo.org/glsa/glsa-201412-04.xml http://www.ubuntu.com/usn/USN-2093-1 https://www.redhat.com/archives/libvir-list/2013-December/msg01170.html