libvirt 1.1.1 through 1.2.0 allows context-dependent attackers to bypass the domain:getattr and connect:search_domains restrictions in ACLs and obtain sensitive domain object information via a request to the (1) virConnectDomainEventRegister and (2) virConnectDomainEventRegisterAny functions in the event registration API.
https://www.redhat.com/archives/libvir-list/2014-January/msg00684.html
https://bugzilla.redhat.com/show_bug.cgi?id=1048637
http://www.ubuntu.com/usn/USN-2093-1
http://security.gentoo.org/glsa/glsa-201412-04.xml
http://secunia.com/advisories/60895
http://lists.opensuse.org/opensuse-updates/2014-02/msg00060.html