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Application: XnView GIF Image Processing Heap Overflow
Platforms: Windows
Secunia: SA48666
{PRL}: 2012-18
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
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XnView is a cross-platform image viewer used for viewing, converting, organising and editing graphical & video files.
It is free of charge for private, educational and non-profit organisations. For commercial use and distribution,
the user must register the program. It is popular with users as it provides features normally found only
in commercial image viewers.
(http://en.wikipedia.org/wiki/XnView)
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2) Report Timeline
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2012-05-15 Vulnerability reported to Secunia
2012-06-21 Vendor disclose patch
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3) Technical details
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An indexing error when processing the ImageDescriptor structure of GIF images
can be exploited to corrupt memory via a specially crafted "ImageLeftPosition" value.
The vulnerabilities are confirmed in version 1.98.8. Other versions may also be affected
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4) The Code
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http://protekresearchlab.com/exploits/PRL-2012-18.gif
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37347.gif
