Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!cbmvax!ag
From: ag@cbmvax.commodore.com (Keith Gabryelski)
Newsgroups: comp.unix.shell
Subject: Re: Beware xargs security holes
Message-ID: <15354@cbmvax.commodore.com>
Date: 23 Oct 90 21:46:24 GMT
References: <1990Oct20.032718.1874@cbnews.att.com>
Reply-To: ag@cbmvax.commodore.com (Keith Gabryelski)
Organization: Commodore-Amiga Unix; West Chester, PA
Lines: 10

In article <1990Oct20.032718.1874@cbnews.att.com> res@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