Microsoft Security Bulletin MS07-063 - Critical
Vulnerability in SMBv2 Could Allow Remote Code Execution (942624)
Published: | Updated:
This important security update resolves a privately reported vulnerability in Server Message Block Version 2 (SMBv2). The vulnerability could allow an attacker to tamper with data transferred via SMBv2, which could allow remote code execution in domain configurations communicating with SMBv2.
This is an Important security update for all supported versions of Windows Vista. For more information, see the subsection, Affected and Non-Affected Software, in this section.
This security update addresses the vulnerability by implementing proper signing using SMBv2. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.
Recommendation. Microsoft recommends that customers apply the update at the earliest opportunity.
Known Issues. None
The following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.
|Operating System||Maximum Security Impact||Aggregate Severity Rating||Bulletins Replaced by this Update|
|Windows Vista||Remote Code Execution||Important||None|
|Windows Vista x64||Remote Code Execution||Important||None|
|Microsoft Windows 2000 Service Pack 4|
|Windows XP Service Pack 2|
|Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2|
|Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2|
|Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2|
|Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems|
- Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
- International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.
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- V1.0 (December 11, 2007): Bulletin published.
- V1.1 (December 19, 2007): Bulletin updated to reflect a change to the Removal Information text in the Reference Table portion of the Security Update Information section.