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Microsoft Incoming SMB Packet Validation Remote Buffer Overflow Vulnerability

Risk
High

Date Discovered
06-14-2005

Description
Microsoft SMB is susceptible to a remote buffer overflow vulnerability. This issue is due to a failure of the application to properly bounds check user-supplied data prior to copying it to an insufficiently sized memory buffer.

Remote attackers may exploit this vulnerability to execute arbitrary machine code in the context of the kernel containing the vulnerable code. Microsoft has stated that other attack vectors may exist, in the form of passing malicious parameters to the affected component, either locally or remotely.

Failed exploit attempts will likely crash the affected computer, denying service to legitimate users.

Symantec Vulnerability Assessment
Symantec Vulnerability Assessment detects and reports this vulnerability. Click here for the advisory released June 15, 2005.

Symantec Enterprise Security Manager
Symantec Enterprise Security Manager™ posted an update to the OS Patch Policy that detects and reports systems that are not patched against this vulnerability. Click here for the advisory released June 16, 2005.

Symantec Enterprise Security Manager Network Assessment Module
Symantec Enterprise Security Manager Network Assessment Module detects and reports this vulnerability. Click here for the advisory released August 9, 2005.

Platforms Affected
Avaya DefinityOne Media Servers
Avaya IP600 Media Servers
Avaya S3400 Message Application Server
Avaya S8100 Media Servers
Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Advanced Server SP3
Microsoft Windows 2000 Advanced Server SP4
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Datacenter Server SP1
Microsoft Windows 2000 Datacenter Server SP2
Microsoft Windows 2000 Datacenter Server SP3
Microsoft Windows 2000 Datacenter Server SP4
Microsoft Windows 2000 Server
Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Server SP3
Microsoft Windows 2000 Server SP4

Components Affected
Microsoft Windows 2000 Advanced Server SP4
Microsoft Windows 2000 Advanced Server SP3
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server SP4
Microsoft Windows 2000 Datacenter Server SP3
Microsoft Windows 2000 Datacenter Server SP2
Microsoft Windows 2000 Datacenter Server SP1
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional SP4
Microsoft Windows 2000 Professional SP3
Microsoft Windows 2000 Professional SP2
Microsoft Windows 2000 Professional SP1
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server SP4
Microsoft Windows 2000 Server SP3
Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server
Microsoft Windows 2000 Terminal Services SP4
Microsoft Windows 2000 Terminal Services SP3
Microsoft Windows 2000 Terminal Services SP2
Microsoft Windows 2000 Terminal Services SP1
Microsoft Windows 2000 Terminal Services
Microsoft Windows Server 2003 Datacenter Edition SP1 Beta 1
Microsoft Windows Server 2003 Datacenter Edition SP1
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Datacenter Edition 64-bit SP1 Beta 1
Microsoft Windows Server 2003 Datacenter Edition 64-bit SP1
Microsoft Windows Server 2003 Datacenter Edition 64-bit
Microsoft Windows Server 2003 Datacenter x64 Edition
Microsoft Windows Server 2003 Enterprise Edition SP1 Beta 1
Microsoft Windows Server 2003 Enterprise Edition SP1
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Enterprise Edition 64-bit SP1 Beta 1
Microsoft Windows Server 2003 Enterprise Edition 64-bit SP1
Microsoft Windows Server 2003 Enterprise Edition 64-bit
Microsoft Windows Server 2003 Enterprise x64 Edition
Microsoft Windows Server 2003 Standard Edition SP1 Beta 1
Microsoft Windows Server 2003 Standard Edition SP1
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Standard x64 Edition
Microsoft Windows Server 2003 Web Edition SP1 Beta 1
Microsoft Windows Server 2003 Web Edition SP1
Microsoft Windows Server 2003 Web Edition
Microsoft Windows XP 64-bit Edition SP1
Microsoft Windows XP 64-bit Edition
Microsoft Windows XP 64-bit Edition Version 2003 SP1
Microsoft Windows XP 64-bit Edition Version 2003
Microsoft Windows XP Home SP2
Microsoft Windows XP Home SP1
Microsoft Windows XP Home
Microsoft Windows XP Media Center Edition SP2
Microsoft Windows XP Media Center Edition SP1
Microsoft Windows XP Media Center Edition
Microsoft Windows XP Professional SP2
Microsoft Windows XP Professional SP1
Microsoft Windows XP Professional
Microsoft Windows XP Professional x64 Edition

Recommendations
Block external access at the network boundary, unless service is required by external parties.
Block inbound and outgoing access through TCP/UDP ports 139 and 445 at the network perimeter. Permit access for trusted or internal computers and networks.

Do not follow links provided by unknown or untrusted sources.
Web users should be wary of visiting Web sites of questionable integrity, especially if enticed to do so by an untrusted source or through unsolicited email.

Do not follow links provided by unknown or untrusted sources.
Do not follow links provided by unknown or untrusted individuals.

Microsoft has released fixes to address supported platforms.


Microsoft Windows 2000 Advanced Server SP4:

Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Advanced Server SP3:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Advanced Server SP2:
Microsoft Windows 2000 Advanced Server SP1:
Microsoft Windows 2000 Advanced Server :
Microsoft Windows 2000 Datacenter Server SP4:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Datacenter Server SP3:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Datacenter Server SP2:
Microsoft Windows 2000 Datacenter Server SP1:
Microsoft Windows 2000 Datacenter Server :
Microsoft Windows 2000 Professional SP4:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Professional SP3:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Professional SP2:
Microsoft Windows 2000 Professional SP1:
Microsoft Windows 2000 Professional :
Microsoft Windows 2000 Server SP4:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Server SP3:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Server SP2:
Microsoft Windows 2000 Server SP1:
Microsoft Windows 2000 Server :
Microsoft Windows 2000 Terminal Services SP4:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Terminal Services SP3:
Microsoft Patch Security Update for Windows 2000 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=1E83F120-01FB-4029-A524-F3AE08F8BB28

Microsoft Windows 2000 Terminal Services SP2:
Microsoft Windows 2000 Terminal Services SP1:
Microsoft Windows 2000 Terminal Services :
Microsoft Windows Server 2003 Datacenter Edition SP1 Beta 1:
Microsoft Windows Server 2003 Datacenter Edition SP1:
Microsoft Patch Security Update for Windows Server 2003 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=3EA61158-E7C5-49A8-A701-B16AAF83A188

Microsoft Windows Server 2003 Datacenter Edition :
Microsoft Patch Security Update for Windows Server 2003 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=3EA61158-E7C5-49A8-A701-B16AAF83A188

Microsoft Windows Server 2003 Datacenter Edition 64-bit SP1 Beta 1:
Microsoft Patch Security Update for Windows Server 2003 64-bit Itanium Edition and Windows XP 64-bit Itanium Edition
http://www.microsoft.com/downloads/details.aspx?familyid=7D97522F-F322-44D4-9E60-BDFED4A7A079

Microsoft Windows Server 2003 Datacenter Edition 64-bit SP1:
Microsoft Patch Security Update for Windows Server 2003 64-bit Itanium Edition and Windows XP 64-bit Itanium Edition
http://www.microsoft.com/downloads/details.aspx?familyid=7D97522F-F322-44D4-9E60-BDFED4A7A079

Microsoft Windows Server 2003 Datacenter Edition 64-bit :
Microsoft Patch Security Update for Windows Server 2003 64-bit Itanium Edition and Windows XP 64-bit Itanium Edition
http://www.microsoft.com/downloads/details.aspx?familyid=7D97522F-F322-44D4-9E60-BDFED4A7A079

Microsoft Windows Server 2003 Datacenter x64 Edition :
Microsoft Patch Security Update for Windows Server 2003 x64 Edition (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=B455A686-EFF2-44D7-BAFA-AC73F0F68FB1

Microsoft Windows Server 2003 Enterprise Edition SP1 Beta 1:
Microsoft Windows Server 2003 Enterprise Edition SP1:
Microsoft Patch Security Update for Windows Server 2003 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=3EA61158-E7C5-49A8-A701-B16AAF83A188

Microsoft Windows Server 2003 Enterprise Edition :
Microsoft Patch Security Update for Windows Server 2003 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=3EA61158-E7C5-49A8-A701-B16AAF83A188

Microsoft Windows Server 2003 Enterprise Edition 64-bit SP1 Beta 1:
Microsoft Patch Security Update for Windows Server 2003 64-bit Itanium Edition and Windows XP 64-bit Itanium Edition
http://www.microsoft.com/downloads/details.aspx?familyid=7D97522F-F322-44D4-9E60-BDFED4A7A079

Microsoft Windows Server 2003 Enterprise Edition 64-bit SP1:
Microsoft Patch Security Update for Windows Server 2003 64-bit Itanium Edition and Windows XP 64-bit Itanium Edition
http://www.microsoft.com/downloads/details.aspx?familyid=7D97522F-F322-44D4-9E60-BDFED4A7A079

Microsoft Windows Server 2003 Enterprise Edition 64-bit :
Microsoft Patch Security Update for Windows Server 2003 64-bit Itanium Edition and Windows XP 64-bit Itanium Edition
http://www.microsoft.com/downloads/details.aspx?familyid=7D97522F-F322-44D4-9E60-BDFED4A7A079

Microsoft Windows Server 2003 Enterprise x64 Edition :
Microsoft Patch Security Update for Windows Server 2003 x64 Edition (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=B455A686-EFF2-44D7-BAFA-AC73F0F68FB1

Microsoft Windows Server 2003 Standard Edition SP1 Beta 1:
Microsoft Windows Server 2003 Standard Edition SP1:
Microsoft Patch Security Update for Windows Server 2003 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=3EA61158-E7C5-49A8-A701-B16AAF83A188

Microsoft Windows Server 2003 Standard Edition :
Microsoft Patch Security Update for Windows Server 2003 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=3EA61158-E7C5-49A8-A701-B16AAF83A188

Microsoft Windows Server 2003 Standard x64 Edition :
Microsoft Patch Security Update for Windows Server 2003 x64 Edition (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=B455A686-EFF2-44D7-BAFA-AC73F0F68FB1

Microsoft Windows Server 2003 Web Edition SP1 Beta 1:
Microsoft Windows Server 2003 Web Edition SP1:
Microsoft Patch Security Update for Windows Server 2003 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=3EA61158-E7C5-49A8-A701-B16AAF83A188

Microsoft Windows Server 2003 Web Edition :
Microsoft Patch Security Update for Windows Server 2003 (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=3EA61158-E7C5-49A8-A701-B16AAF83A188

Microsoft Windows XP 64-bit Edition SP1:
Microsoft Patch Security Update for Windows XP 64-bit Itanium Edition (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=B3A61221-0DAC-452C-87E9-3362DD97273A

Microsoft Windows XP 64-bit Edition :
Microsoft Patch Security Update for Windows XP 64-bit Itanium Edition (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=B3A61221-0DAC-452C-87E9-3362DD97273A

Microsoft Windows XP 64-bit Edition Version 2003 SP1:
Microsoft Patch Security Update for Windows Server 2003 64-bit Itanium Edition and Windows XP 64-bit Itanium Edition
http://www.microsoft.com/downloads/details.aspx?familyid=7D97522F-F322-44D4-9E60-BDFED4A7A079

Microsoft Windows XP 64-bit Edition Version 2003 :
Microsoft Patch Security Update for Windows Server 2003 64-bit Itanium Edition and Windows XP 64-bit Itanium Edition
http://www.microsoft.com/downloads/details.aspx?familyid=7D97522F-F322-44D4-9E60-BDFED4A7A079

Microsoft Windows XP Home SP2:
Microsoft Patch Security Update for Windows XP (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=9CC719AD-5E57-4AEF-9FB3-9F7AB7BB5D32

Microsoft Windows XP Home SP1:
Microsoft Patch Security Update for Windows XP (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=9CC719AD-5E57-4AEF-9FB3-9F7AB7BB5D32

Microsoft Windows XP Home :
Microsoft Windows XP Media Center Edition SP2:
Microsoft Patch Security Update for Windows XP (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=9CC719AD-5E57-4AEF-9FB3-9F7AB7BB5D32

Microsoft Windows XP Media Center Edition SP1:
Microsoft Patch Security Update for Windows XP (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=9CC719AD-5E57-4AEF-9FB3-9F7AB7BB5D32

Microsoft Windows XP Media Center Edition :
Microsoft Windows XP Professional SP2:
Microsoft Patch Security Update for Windows XP (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=9CC719AD-5E57-4AEF-9FB3-9F7AB7BB5D32

Microsoft Windows XP Professional SP1:
Microsoft Patch Security Update for Windows XP (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=9CC719AD-5E57-4AEF-9FB3-9F7AB7BB5D32

Microsoft Windows XP Professional :
Microsoft Windows XP Professional x64 Edition :
Microsoft Patch Security Update for Windows XP x64 Edition (KB896422)
http://www.microsoft.com/downloads/details.aspx?familyid=716B9CDE-5EF1-4005-903F-FC720863F03C

References
Source: Microsoft Security Bulletin MS05-027
URL: http://www.microsoft.com/technet/security/bulletin/MS05-027.mspx

Credits
Qualys is credited with reporting this vulnerability.


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