[Full-disclosure] StreamAudio ChainCast ProxyManager ccpm_0237.dll Buffer Overflow

[Elazar Broad]

Who:
http://www.streamaudio.com
StreamAudio(formerly ChainCast) is a provides streaming media for 
radio broadcasters.

What:
StreamAudio utilizes an Active control that acts as a proxy between 
StreamAudio and Windows Media Player which actually plays the 
content. 
This control is marked as follows:
 {2253F320-AB68-4A07-917D-4F12D8884A06}
 IObjectSafety:
 IO. Safe for scripting (IDispatch)

How:
The first parameter of the InternalTuneIn() method expects a URL to 
passed it and it fails to properly check the length of the supplied 
data. The SEH  is overwritten after 248 bytes.

Fix:
Set the killbit for this this control, see 
http://support.microsoft.com/kb/240797

Elazar


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