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Vulnerability Note VU#604745Winamp fails to properly handle playlists with long "file" parameterOverviewWinamp contains a buffer overflow vulnerability when processing a playlist that has a long file parameter. This may allow a remote unauthenticated attacker to execute arbitrary code on a vulnerable system.I. DescriptionWinampWinamp is a media player for Microsoft Windows systems. It can play various types of media files, such as MP3s. Winamp was created by Nullsoft, which has been acquired by America Online.
Because a web browser can be used as an attack vector for this vulnerability, configure your web browser to prompt before opening Winamp playlist files. This can help prevent automated exploitation as the result of viewing a web page.
Internet Explorer will open Winamp playlist files without prompting the user. It is possible to modify this behavior so that Internet Explorer will prompt the user before opening Winamp playlist files. To make this change, modify the following registry value: HKEY_CLASSES_ROOT\Winamp.Playlist\EditFlags Set the value to: REG_BINARY 00 00 00 00
The default configuration of Mozilla Firefox appears to prompt before opening Winamp playlist files. However, if the user has chosen to have playlist files open without prompting, this behavior can be reset by following the instructions in the document Securing Your Web Browser. This document provides instructions for how to configure Mozilla Firefox to save various file types to disk, rather than opening them with the associated application. Do not open Winamp playlist files (.PLS or .M3U) from untrusted sources. Systems Affected
References
This vulnerability was publicly disclosed by ATmaCA. This document was written by Will Dormann.
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