Thanks for tracking this down! Since xserver-xgl is in "universe", and a non-default, I think it gets less attention. However, people are reading the bugs. :)
** Changed in: xserver-xgl (Ubuntu) Status: Confirmed => Fix Released -- xserver or gdm sets xhost + ; no security https://launchpad.net/bugs/73110 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs