PRL-2015-05

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Application:   Foxit Reader PDF Parsing  Memory Corruption

Platforms:   Windows

Versions:   The vulnerabilities are reported in Foxit Reader and Foxit Enterprise Reader versions 7.1.0.306 and 7.1.3.320 and Foxit Phantom PDF versions 7.1.0.306, 7.1.2.311, and 7.1.3.320.

Secunia:   SA63346

{PRL}:   2015-05

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) POC

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1) Introduction
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Foxit Reader is a multilingual freemium PDF tool that can create, view, edit, digitally sign, and print PDF files.[3] Early versions of Foxit Reader were notable for startup performance and small file size.[citation needed] Foxit has been compared favorably toAdobe Reader.[4][5][6] The Windows version allows annotating and saving unfinished PDF forms, FDF import/export, converting to text, highlighting and drawing.

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

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2) Report Timeline
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2015-04-09: Francis Provencher from Protek Research Lab’s found the issue;
2015-04-13: Foxit Security Response Team confirmed the issue;
2015-04-28: Foxit fixed the issue;
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3) Technical details
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A memory corruption occured within the LZW algorithm that is used to decode GIF. A specifically crafted GIF could lead to a controled memory corruption.

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4) POC

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Here

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