Secunia Research has discovered a vulnerability in Microsoft PowerPoint, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to an array-indexing error in the Microsoft PowerPoint Freelance Windows 2.1 Translator (FL21WIN.DLL) when parsing layout information and can be exploited to cause a heap-based buffer overflow.
Successful exploitation allows execution of arbitrary code.
NOTE: On systems with MS09-017 applied, support for Freelance files is disabled by default, but can be re-enabled via a key in the registry.
Solution: Microsoft states that no fix will be issued. However, installations with MS09-017 applied block opening of Freelance files by default.
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Subject: Microsoft PowerPoint Freelance Layout Parsing Vulnerability
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