In addition to the security fixes recently included in the 2013.1.3 upstream stable release as detailed at https://launchpad.net/nova/grizzly/2013.1.3 there were a couple more related fixes which are also included in the RDO repos: https://access.redhat.com/security/cve/CVE-2013-4261 openstack-nova-compute console-log DoS https://access.redhat.com/security/cve/CVE-2013-4278 Enforce flavor access during instance boot thanks, Pádraig.