Secunia

Secunia Research has discovered a vulnerability in Yahoo! Messenger, which can be exploited by malicious people to trick users into executing malicious files.

The problem is that files with long filenames are not displayed correctly in the file transfer dialogs. This can be exploited to trick users into accepting and potentially executing malicious files.

Successful exploitation requires that the option "Hide extension for known file types" is enabled in Windows (default setting).

The vulnerability has been confirmed in version 6.0.0.1750. Other versions may also be affected.

Solution
Update to version 6.0.0.1921 or later.
Further details available in Customer Area

Provided and/or discovered by
Andreas Sandblad, Secunia Research.

Original Advisory
Secunia Research:
http://secunia.com/secunia_research/2005-2/advisory/

Deep Links
Links available in Customer Area