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Secunia Research: NextLevel Systems Products NCTAudioFile2 ActiveX Control Buffer Overflow

====================================================================== 

                     Secunia Research 24/01/2007

		   - NextLevel Systems Products -
	   - NCTAudioFile2 ActiveX Control Buffer Overflow -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software 

Audio Editor Gold 9.2.5 Build 424
Audio Studio Gold 7.0.1.1 Build 500

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Highly critical
Impact: System compromise
Where:  Remote

====================================================================== 
3) Vendor's Description of Software 

"Audio Editor Gold is an advanced and powerful, full-featured digital
audio editing software. You can use it to record your own music, voice,
or other audio, edit it, mix it with other audio or musical parts, add
effects like Reverb, Chorus, and Echo, and master it so that you can
burn it to a CD, post it on the World Wide Web, or e-mail it."

Product Link:
http://www.audio-editor.net/details/index.htm

"Not only can you use Audio Studio Gold to grab music from a CD, but
also record audios, in virtually any format. Stop there, and burn your
improved, converted audio files to disc. Or use the advanced audio
editor to create your own music and songs that you can transfer to CDs,
or share it with your friends in party."

Product Link:
http://www.audio-editor.net/asg/

====================================================================== 
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in two NextLevel
Systems products, which can be exploited by malicious people to
compromise a user's system.

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.

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5) Solution 

Set the kill-bit for the affected ActiveX control.

Use another product.

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6) Time Table 

17/01/2007 - Vendor notified.
24/01/2007 - Public disclosure.

====================================================================== 
7) Credits 

Discovered by Carsten Eiram, Secunia Research.

====================================================================== 
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2007-0018 for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/ 

====================================================================== 
10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2007-32/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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