#####################################################################################

Application:   ACDSee PRO GIF Image Processing Heap Overflow
Platforms:   Windows 

Secunia:   SA48804  

{PRL}:   2012-20

Author:   Francis Provencher (Protek Research Lab's) 

Website:   http://www.protekresearchlab.com/

Twitter:   @ProtekResearch


#####################################################################################

1) Introduction
2) Report Timeline
3) Technical details
4) The Code


#####################################################################################

===============
1) Introduction
===============
ACDSee is a shareware image organizer, viewer, and editor software for Microsoft
Windows and Mac OS X 10.5 and higher developed by ACD Systems. It was originally
distributed as a 16-bit application for Windows 3.0 and later supplanted by a 32-bit
version for Windows 95.

(http://en.wikipedia.org/wiki/ACDSee)

#####################################################################################

============================
2) Report Timeline
============================ 

2012-03-13  Vulnerability reported to Secunia
2012-06-21  Vendor disclose patch


#####################################################################################

============================
3) Technical details
============================
An error in IDE_ACDStd.apl when allocating memory based on values in the Logical
Screen Descriptor structure of a GIF image and later copying data into the buffe
r without ensuring that it's adequately sized can be exploited to corrupt heap memory.
 

The vulnerabilities are confirmed in version 5.1 (Build 137). Other versions may also be affected.

#####################################################################################

===========
4) The Code
===========

http://protekresearchlab.com/exploits/PRL-2012-20.gif
http://www.exploit-db.com/sploits/19333.gif