Provide references for CVE-2015-8222.
Where can I find more information about CVE-2015-8222?
References are available at: https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1515689, http://www.ubuntu.com/usn/USN-2809-1, https://github.com/lxc/lxd/issues/1307.