Buffer overflow in net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, allows remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other impact via a long unencrypted auth ticket.
https://bugzilla.redhat.com/show_bug.cgi?id=1142060
http://www.ubuntu.com/usn/USN-2379-1
http://www.ubuntu.com/usn/USN-2378-1
http://www.ubuntu.com/usn/USN-2377-1
http://www.ubuntu.com/usn/USN-2376-1