CVE-2013-6437 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6437): The libvirt driver in OpenStack Compute (Nova) before 2013.2.2 and icehouse before icehouse-2 allows remote authenticated users to cause a denial of service (disk consumption) by creating and deleting instances with unique os_type settings, which triggers the creation of a new ephemeral disk backing file. Cleanup Bug - for CVE Tracking - No action needed. *nova-2013.1.4-r3 (19 Dec 2013) *nova-2013.2.1-r1 (19 Dec 2013)