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Microsoft Windows Client Service for Netware Vulnerabilities
Secunia Advisory: SA22866
Release Date: 2006-11-14
Popularity: 15,969 views

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

OS:Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

Binary Analysis: BA11 :: Available for 1 Credit

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CVE reference:CVE-2006-4688
CVE-2006-4689


Description:
Two vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious people to cause a DoS (Denial of Service) and compromise a vulnerable system.

1) A boundary error in Client Service for Netware (CSNW) can be exploited to cause a buffer overflow via a specially crafted network message sent to the system.

Successful exploitation allows execution of arbitrary code.

2) An unspecified error in Client Service for Netware can be exploited to cause the system to stop responding via a specially crafted network message.

Solution:
Apply patches.

Microsoft Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=3cf0b0d1-ff07-40ac-a6ac-44dc4a54f91e

Microsoft Windows XP SP2:
http://www.microsoft.com/downloads/de...=2f54258f-1071-467b-80a2-e4dbfc050667

Microsoft Windows Server 2003 (optionally with SP1):
http://www.microsoft.com/downloads/de...=f23574f7-4033-45ac-8ad8-6cced2ee9285

Provided and/or discovered by:
1) The vendor credits Peter Winter-Smith of NGS Software and Sam Arun Raj of McAfee.
2) The vendor credits Sam Arun Raj of McAfee.

Original Advisory:
MS06-066 (KB923980):
http://www.microsoft.com/technet/security/Bulletin/MS06-066.mspx


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