Root compromise is possible in kernels 2.2.x (x <= 19) up through 2.4.y. (y <= 9). Here's more info: http://www.securityfocus.com/cgi-bin/archive.pl?id=1&mid=221337&start=2001-10-15&end=2001-10-21 If you've got a system with multiple users, please upgrade your kernel. ~M