Secunia

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.
Further details available in Customer Area

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

Deep Links
Links available in Customer Area