Beware xargs security holes

[Keith Gabryelski]

In article <1990Oct20.032718.1874 at cbnews.att.com> res at cbnews.att.com (Robert
E. Stampfli) writes:
>No user, malicious or not, can remove "every file on the system."
>In fact, I contend it is impossible to remove the last instance of
>an executable that contains the unlink() system call.

This was, infact, impossible on System V Release 3.x, but in SVR4 it
is possible.  BSD and SunOS varients get this `right', also.

Pax, Keith