Unmarking as a security vulnerability. An admin user should not have a passwordless login. Also, this bug is not in sudo but in gnome-session (which would be the one to run 'sudo -k'). Finally, since this bug is nearly 5 years old, it seems clear it is not going to be fixed in Ubuntu. Please feel free to reopen/file a new bug against gnome-session if there is there is progress made for a developer to act on. Thanks!
** Changed in: sudo (Ubuntu) Status: Confirmed => Invalid ** Changed in: gnome-session (Ubuntu) Status: Confirmed => Won't Fix ** This bug is no longer flagged as a security vulnerability -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/46890 Title: logging out of GNOME session should invalidate sudo tty tickets -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs