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Novell Distributed Print Services Integer Overflow Vulnerability
Secunia Advisory: SA20048
Release Date: 2006-05-10
Last Update: 2006-05-23
Popularity: 10,288 views

Critical:
Moderately critical
Impact: System access
Where: From local network
Solution Status: Vendor Patch

OS:Novell Netware 4.x
Novell Netware 5.x
Novell NetWare 6.x

Software:Novell Client for Windows NT/2000/XP 4.x
Novell Open Enterprise Server 1.x

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CVE reference:CVE-2006-2304
CVE-2006-2327


Description:
Ryan Smith and Alex Wheeler have reported a vulnerability in Novell Distributed Print Service (DPS), which potentially can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to an integer overflow error within the variable-length array decoding code in the RPC-based protocol library. This can be exploited to cause a heap-based buffer overflow and may allow arbitrary code execution.

The vulnerability has been reported in the following products:
* Novell Distributed Print Services (NDPS).
* Novell Novell Open Enterprise Server (NetWare based)
* Novell Client versions 4.83 SP3, 4.90 SP2, and 4.91 SP2 for Windows 2000/XP/2003.

Solution:
Update to the fixed versions.

Novell NDPS/ Open Enterprise Server:
The vulnerability has been fixed in DPRPCNLM.NLM version 3.00.16 dated 2006-05-02 or later, available in patch dprpc_security.exe released on 2006-05-22.

Novell Client:
The vulnerability has been fixed in Post-SP2 DPRPCW32.DLL dated 2006-05-08 or later, available in patch 491psp2_dprpcw32.exe released on 2006-05-22.

Provided and/or discovered by:
Ryan Smith and Alex Wheeler.

Changelog:
2006-05-15: Added CVE reference.
2006-05-16: Updated advisory with additional affected products. Updated "Description" section.
2006-05-16: Added CVE reference.
2006-05-23: Updated "Solution" section.

Original Advisory:
http://www.hustlelabs.com/novell_ndps_advisory.pdf

Novell:
http://www.novell.com/support/search....D=3455056&stateId=0%200%203453353
http://www.novell.com/support/search....D=3455056&stateId=0%200%203453353
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2973719.htm
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2973700.htm


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