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Date: Wed, 26 Dec 2007 01:28:52 -0500
From: Valdis.Kletnieks@...edu
To: reepex <reepex@...il.com>
Cc: Elazar Broad <elazarb@...thlink.net>, full-disclosure@...ts.grok.org.uk
Subject: Re: AOL YGP Picture Editor YGPPicEdit.dll
Multiple Buffer Overflows
On Tue, 25 Dec 2007 21:53:29 CST, reepex said:
> How does a bunch of 'A's prove something is exploitable?
If a bunch of A's causes the EIP to end up as x'41414141', it's 95% of the
way to being an exploit. If it gets you some *other* crash, it's probably
at least 30% to 40% of the way to an exploit.
Go back and read the analysis of the NTP buffer overflow from a number of years
back. Truly a classic - they managed to leverage a *one byte* overflow into
a complete and total rooting of the box.
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