Title: Nullsoft Winamp AIP Buffer Overflow Vulnerability
Severity: HIGH
Description:
Winamp is a popular media player supporting MP3 and other filetypes.
Versions of Winamp are vulnerable to a stack overflow triggered during processing of Audiosoft parameter files (*.AIP).
A user may insert a large sequence of characters (> 2100) into an AIP file.
As with related filetypes (ie *.M3U and *.PLS), *.AIP files are by default downloaded without any warning to the target user.
When parsed by Winamp, the extraneous data will overflow the affected buffer.
As a result of this overflow, the data copied onto the stack can overwrite critical parts of the stack frame such as the calling function's return address.
Since this data is supplied by the user it can be a made to alter the program's flow of execution.
Properly exploited, a maliciously composed AIP file could be used by a remote attacker to execute aribitrary code on a vulnerable system.
Affected Products:
- NullSoft Winamp 2.60.0 (full)
- NullSoft Winamp 2.60.0 (lite)
- NullSoft Winamp 2.61.0 (full)
- NullSoft Winamp 2.62.0 (standard)
- NullSoft Winamp 2.64.0 (standard)
- NullSoft Winamp 2.65.0
- NullSoft Winamp 2.70.0 (full)
- NullSoft Winamp 2.71.0
- NullSoft Winamp 2.72.0
- NullSoft Winamp 2.73.0 (full)
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