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Security Vulnerability - Novell iPrint nipplib.dll > client-file-name Parsing Remote Code Execution Vulnerability

This document (7010145) is provided subject to the disclaimer at the end of this document.


Novell iPrint Client for Windows


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell iPrint Client. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The flaw exists within the nipplib component which is used by both the ActiveX and Netscape compatible browser plugins. When handling the client-file-name parameter from the user specified printer-url the process blindly copies user supplied data into a fixed-length buffer on the heap. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the browser.


The fix for this security vulnerability is included in the released "iPrint Client for Windows XP/Vista/Win 7 5.78" patch, available at or later.

Additional Information

ZDI-CAN-1466: Novell iPrint nipplib.dll  > client-file-name Parsing Remote Code Execution Vulnerability. This vulnerability was found by Ivan Rodriguez Almuina, working with TippingPoint's Zero Day Initiative. CVE-2011-4186.


This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7010145
  • Creation Date:09-FEB-12
  • Modified Date:26-APR-12
    • NovelliPrint

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