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Security researchers are warning of a serious - and unfixed - security hole with the popular Winamp media player.

A remotely exploitable stack based buffer overflow creates a means for hackers to take over machines running Winamp- providing they can trick users into running maliciously constructed files. For example, a malformed .m3u playlist file, hosted on a web site, would be automatically downloaded and opened in Winamp without any user interaction. The vulnerability, discovered by pen testers at Security-Assessment.com, arises from a buffer overflow in library file (called IN_CDDA.dll) used by Winamp.

The vulnerability has been reported in version 5.05 and confirmed in version 5.06. Prior versions might also be affected, security firm Secunia warns. A proof of concept exploit was released yesterday by security outfit K-OTik. K-otik advises users to uninstall Winamp or at the very least disassociate .cda and .m3u extensions from Winamp until the bug is fixed. ®

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Related links

Security-Assessment.com's advisory (PDF)

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