Re: [Full-disclosure] AOL YGP Picture Editor YGPPicEdit.dll Multiple Buffer Overflows

After some more analysis by Carsten Eiram @ Secunia, this is NOT exploitable. I would like to apologize for the hasty post. SecurityFocus, please update bid 27026 to reflect the fact that at most, this can just crash the browser.

Elazar

-----Original Message-----
From: Valdis.Kletnieks@xxxxxx
Sent: Dec 26, 2007 1:28 AM
To: reepex <reepex@xxxxxxxxx>
Cc: Elazar Broad <elazarb@xxxxxxxxxxxxx>, full-disclosure@xxxxxxxxxxxxxxxxx
Subject: Re: [Full-disclosure] 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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