Multiple vulnerabilities have been reported in Winamp, which can be exploited by malicious people to compromise a user's system.

1) Three boundary errors in the Module Decoder Plug-in (IN_MOD.DLL) when parsing instrument definitions can be exploited to cause heap-based buffer overflows via a specially crafted Impulse Tracker file.

2) A boundary error in the Module Decoder Plug-in when parsing samples can be exploited to cause a heap-based buffer overflow via a specially crafted Impulse Tracker file.

3) An error in the Module Decoder Plug-in when parsing Ultratracker files can be exploited to cause a heap-based buffer overflow.

4) An integer overflow error in the Module Decoder Plug-in when parsing Oktalyzer files can be exploited to cause a heap-based buffer overflow.

5) An integer overflow error when parsing PNG or JPEG data may result in memory corruption.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code.

Solution
Update to version 5.57.
Further details available to Secunia VIM customers

Provided and/or discovered by
1-4) Dyon Balding, Secunia Research.
5) The vendor credits Nicolas Joly, Vupen.

Changelog
Further details available to Secunia VIM customers

Original Advisory
Secunia Research:
http://secunia.com/secunia_research/2009-52/
http://secunia.com/secunia_research/2009-53/
http://secunia.com/secunia_research/2009-56/
http://secunia.com/secunia_research/2009-57/

Winamp:
http://www.winamp.com/help/Version_History#Winamp_5.57_.28Latest.29

Deep Links
Links available to Secunia VIM customers