bugtraq - Re: MS Internet Explorer 7 Denial Of Service Exploit

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Message-ID: <49286E1E.5060602@smoothwall.net>
Date: Sat, 22 Nov 2008 20:39:58 +0000
From: Nick Kirby <nick.kirby@...othwall.net>
To: bugtraq@...urityfocus.com
Subject: Re: MS Internet Explorer 7 Denial Of Service Exploit

craig@...net.net wrote:
> On Konqueror 3.5.9, what happens is that this childish code builds a huge string, eats memory, causes swapping, and finally blows away Konq.  Linux and X and everything else stay up and recover nicely.  (Gentoo/AMD64X2/3G mem)
>
> This isn't an exploit -- at least not on Linux -- it's just kiddie stupidity.  It doesn't take any particular cleverness to blow memory by dynamically creating bigger and bigger data structures.  With virtual memory and 64-bit pointers, when exactly do we return -ENOMEM?
>
>   
Could you be a bit more specific as to the circumstances of the DOS 
exploit and how this could be replicated?
Thank you.