Kevin Backhouse discovered an integer overflow in bson_ensure_space, as used in whoopsie.
https://usn.ubuntu.com/usn/usn-4170-2
https://usn.ubuntu.com/usn/usn-4170-1
http://packetstormsecurity.com/files/172858/Ubuntu-Apport-Whoopsie-DoS-Integer-Overflow.html