A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.

A user can craft a route that injects a bogus entry into one of the HAProxy configuration files. This bogus entry can match any arbitrary hostname, or all hostnames in the cluster, and direct traffic to an arbitrary application, including one belonging to the user who is performing the attack.