Some vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious people to compromise a user's system.

1) A memory allocation error exists in the Microsoft Server Message Block (SMB) client implementation when parsing SMB responses.

2) An error in the Microsoft Server Message Block (SMB) client implementation when handling SMB transaction responses with e.g. an incorrect "Data Offset" field can be exploited to corrupt memory via a specially crafted SMB transaction response.

3) An error in the Microsoft Server Message Block (SMB) client implementation when parsing SMB transaction responses can be exploited to corrupt memory via a specially crafted SMB transaction response.

4) An error exists in the Microsoft Server Message Block (SMB) client implementation when handling SMB responses.

Successful exploitation of these vulnerabilities allows execution of arbitrary code, but requires that a user is tricked into connecting to a malicious SMB server, e.g. via a specially crafted web site.

Solution
Apply patches.
Further details available to Secunia VIM customers

Provided and/or discovered by
1) The vendor credits Mark Rabinovich of Visuality Systems Ltd.
2-4) Laurent Gaffié of stratsec

Changelog
Further details available to Secunia VIM customers

Original Advisory
MS10-020 (KB980232):
http://www.microsoft.com/technet/security/Bulletin/MS10-020.mspx

stratsec:
http://archives.neohapsis.com/archives/fulldisclosure/2010-04/0204.html

Deep Links
Links available to Secunia VIM customers