full-disclosure - Re: Apple Safari ... DoS Vulnerability

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Date: Tue, 3 Mar 2009 10:22:53 +0000 (UTC)
From: jf <jf@...glingpointers.net>
To: Chris Evans <scarybeasts@...il.com>
Cc: full-disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Apple Safari ... DoS Vulnerability

> Eh? If you visit www.evil.com and your tab crashes, that's no
> different from www.evil.com closing its own tab with Javascript.

While I generally agree that if its just a straight DoS that there is
very little difference-- but to play devils advocate some--
the difference is that with JS closing the tab, the code path was a
known/valid/authorized one, whereas the other could potentially be
anything, and whatever it is, it could be useful given the right
circumstances.

I know you know this, Chris, actually both of you (&& Thierry), so I'm
somewhat preaching to the choir perhaps, but imho, all sigsegv's are at
least worth investigating; 99.9% of them may be a useless dos, .09% might
be useful dos's and .01% might just be the thing that turns $'s into #'s.
Say saying 'lol xor eax, eax mov [eax], 0x01234567... trash' is a bit
silly

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