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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


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


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===============
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)

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

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


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============================
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.

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

Here

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