Date: Fri, 29 Jun 2001 10:00:19 -0700 (PDT) From: David Malone <dwmalone@maths.tcd.ie> To: freebsd-bugs@FreeBSD.org Subject: Re: misc/28522: The ability to crash any freebsd box with 8 lines of shell script Message-ID: <200106291700.f5TH0JJ00321@freefall.freebsd.org>
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The following reply was made to PR misc/28522; it has been noted by GNATS. From: David Malone <dwmalone@maths.tcd.ie> To: Ryan Malek <squirl@exotica.mach3ww.com> Cc: freebsd-gnats-submit@FreeBSD.org Subject: Re: misc/28522: The ability to crash any freebsd box with 8 lines of shell script Date: Fri, 29 Jun 2001 17:54:34 +0100 On Fri, Jun 29, 2001 at 09:11:32AM -0700, Ryan Malek wrote: > I wrote a small paper documenting this problem. I _think_ its quite a serious problem considering the fact that I can drop any FreeBSD box with 7 or 8 lines of shell scripting. Here is the paper I wrote on it: > > http://exotica.mach3ww.com/~squirl/devzero-vuln.txt You seem to have rediscovered the fork bomb - if the admin has suitable process limits set then this shouldn't be a problem. Try saying "limit maxproc 10" and running the catbomb, you should find it is less effective. (I'll close the PR unless there is more to the problem than this). David. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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