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

from [Elazar Broad] Network Security [Permanent Link]
Subject: Re: [Full-disclosure] AOL YGP Picture Editor YGPPicEdit.dll Multiple Buffer Overflows
Date: Thu, 27 Dec 2007 10:05:08 -0500 (GMT-05:00) 
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@vt.edu
Sent: Dec 26, 2007 1:28 AM
To: reepex <reepex@gmail.com>
Cc: Elazar Broad <elazarb@earthlink.net>, full-disclosure@lists.grok.org.uk
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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