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Secunia Research: Novell iPrint Client "call-back-url" Buffer Overflow Vulnerability

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                     Secunia Research 20/08/2010

      -  Novell iPrint Client "call-back-url" 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 

* Novell iPrint Client 5.42

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System compromise
Where:  Remote

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3) Vendor's Description of Software 

"Novell iPrint extends print services securely across multiple 
networks and operating systems. Using proven Internet technologies, 
iPrint transforms your Novell Distributed Print Services™ (NDPS®) 
printers into Net-enabled printers, making all your printing resources
instantly accessible with a Web browser and a few mouse clicks".

Product Link:
http://www.novell.com/products/openenterpriseserver/iprint.html

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Novell iPrint 
Client, which can be exploited by malicious people to compromise a 
user's system.

The vulnerability is caused by a boundary error in the handling of the
"call-back-url" parameter value for a "op-client-interface-version" 
operation where the "result-type" parameter is set to "url". This can
be exploited to cause a stack-based buffer overflow via an overly long
"call-back-url" parameter value.

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

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5) Solution 

Update to version 5.44.

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6) Time Table 

03/08/2010 - Vendor notified.
03/08/2010 - Vendor response.
16/08/2010 - Vendor provides status update.
20/08/2010 - Public disclosure.

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7) Credits 

Discovered by Carsten Eiram, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2010-1527 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://secunia.com/advisories/business_solutions/

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/advisories/

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://secunia.com/secunia_research/

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

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-104/

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

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