openstack-nova is vulnerable to arbitrary file read attacks. The vulnerability exists as the libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk.
seclists.org/oss-sec/2016/q1/563
www.openwall.com/lists/oss-security/2016/03/08/6
www.securityfocus.com/bid/84277
access.redhat.com/errata/RHSA-2016:0363
access.redhat.com/errata/RHSA-2016:0364
access.redhat.com/errata/RHSA-2016:0365
access.redhat.com/errata/RHSA-2016:0366
access.redhat.com/security/cve/CVE-2016-2140
access.redhat.com/security/updates/classification/#important
bugs.launchpad.net/nova/+bug/1548450
bugzilla.redhat.com/show_bug.cgi?id=1313454
rhn.redhat.com/errata/RHSA-2016-0366.html
security.openstack.org/ossa/OSSA-2016-007.html