Winamp libsndfile.dll MAT File Handling NULL Byte Overwrite
Secunia Advisory: SA24766
Release Date: 2007-04-09
Last Update: 2007-05-02
Popularity: 8,452 views

Critical:
Moderately critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Winamp 5.x

Binary Analysis: BA87 :: Available for Credits

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CVE reference:CVE-2007-1921


Description:
Piotr Bania has discovered a vulnerability in Winamp, which potentially can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an error within the LIBSNDFILE.DLL library when handling Matlab version 4.2 files. This can be exploited to overwrite an arbitrary memory location with a NULL byte when opening a specially crafted MAT file.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in version 5.33. Other versions and applications that use the library may also be affected.

Solution:
Update to version 5.34 or later.
http://www.winamp.com/player/

Provided and/or discovered by:
Piotr Bania

Changelog:
2007-04-12: Added CVE reference.
2007-04-16: Updated advisory based on addition information by Secunia Research.
2007-05-02: Updated "Solution" and "Solution Status" sections to reflect fix information.

Original Advisory:
Nullsoft:
http://forums.winamp.com/showthread.php?threadid=269831

Piotr Bania:
http://www.piotrbania.com/all/adv/nullsoft-winamp-libsndfile-adv.txt


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