[NT] BearShare NCTAudioFile2 ActiveX Control Buffer Overflow

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BearShare NCTAudioFile2 ActiveX Control Buffer Overflow
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SUMMARY

<http://www.bearshare.com/> BearShare allows you to "Share, Discover and
Download music and videos". Secunia Research has discovered a
vulnerability in BearShare, which can be exploited by malicious people to
compromise a user's system.

DETAILS

Vulnerable Systems:
* BearShare version 6.0.2.26789

The vulnerability is caused due to a boundary error in the
NCTAudioFile2.AudioFile ActiveX control when handling the
"SetFormatLikeSample()" method. This can be exploited to cause a
stack-based buffer overflow by passing an overly long string (about 4124
bytes) as argument to the affected method.

Successful exploitation allows execution of arbitrary code when a user
e.g. visits a malicious website.

Solution:
Set the kill-bit for the affected ActiveX control.

Time Table:
30/04/2007 - Vendor notified.
09/05/2007 - Public disclosure.

CVE Information:
<http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0018>
CVE-2007-0018

ADDITIONAL INFORMATION

The information has been provided by <mailto:vuln@secunia.com> Secunia
Research.
The original article can be found at:
<http://secunia.com/secunia_research/2007-50/>

http://secunia.com/secunia_research/2007-50/

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