MS15-083: Vulnerability in Server Message Block could allow remote code execution: August 11, 2015

Note On September 8 2015, Microsoft re-released MS15-083 to comprehensively address issues with Security Update KB3073921. Customers running Windows Vista or Windows Server 2008 who installed the 3073921 update before the September 8 2015 re-release should reapply the update.


Summary

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if an attacker sends a specially crafted string to SMB server error logging.

To learn more about the vulnerability, see Microsoft Security Bulletin MS15-083.

More Information

Important

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see
Get security updates automatically.

You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

Click the download link in Microsoft Security Bulletin MS15-083 that corresponds to the version of Windows that you are running.

More Information

Windows Vista (all editions)Reference Table

The following table contains the security update information for this software.

Security update file names

For all supported 32-bit editions of Windows Vista:
Windows6.0-KB3073921-v2-x86.msu


For all supported x64-based editions of Windows Vista:
Windows6.0-KB3073921-v2-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart your system after you apply this security update.

Removal information

WUSA.exe does not support the removal of updates. To uninstall an update that was installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.

File information

See the file information section

Registry key verification

Note A registry key does not exist to validate the presence of this update.

Windows Server 2008 (all editions)Reference Table

The following table contains the security update information for this software.

Security update file names

For all supported 32-bit editions of Windows Server 2008:
Windows6.0-KB3073921-v2-x86.msu


For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB3073921-v2-x64.msu


For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB3073921-v2-ia64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

You must restart your system after you apply this security update.

Removal information

WUSA.exe does not support the removal of updates. To uninstall an update that was installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and then select from the list of updates.

File information

See the file information section

Registry key verification

Note A registry key does not exist to validate the presence of this update.

See the file information section.

Package Name

Package Hash SHA 1

Package Hash SHA 2

Windows6.0-KB3073921-v2-ia64.msu

05F214D4B19EFEB2353CF029DAA4D5DFBD5B2DF6

D58FCB5A194D01D6DAC7F727AC22B79A628F6AAF82F3775B66B3B3D1FD03BBD6

Windows6.0-KB3073921-v2-x64.msu

88FBB1258180959445DFCF65F6738933E6A58555

5806B2E578C0F3CC336B4C32E143F1E99EFF386FF5141A33152F0AEE0F7218D3

Windows6.0-KB3073921-v2-x86.msu

BEC5FA1DBF93C2B552143DEAE5F954B7C0D86A64

BE69BB76E2F8BA91E477CFF1632E1B49F102AAFA61C39C751F751D09EAB9ABD7


The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.


Windows Vista and Windows Server 2008 file information

  • The files that apply to a specific product, milestone (SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.0.6002.19xxx

    Windows Vista SP2 and Windows Server 2008 SP2

    SP2

    GDR

    6.0.6002.23xxx

    Windows Vista SP2 and Windows Server 2008 SP2

    SP2

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x86-based versions of Windows Vista and Windows Server 2008

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.0.6002.19478

102,912

13-Aug-2015

14:15

x86

Srvnet.sys

6.0.6002.23788

102,912

13-Aug-2015

14:17

x86

Srv.sys

6.0.6002.19478

304,640

13-Aug-2015

14:15

x86

Srv.sys

6.0.6002.23788

305,152

13-Aug-2015

14:18

x86

For all supported x64-based versions of Windows Vista and Windows Server 2008

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.0.6002.19478

294,912

13-Aug-2015

14:21

IA-64

Srvnet.sys

6.0.6002.23788

295,424

13-Aug-2015

14:19

IA-64

Srv.sys

6.0.6002.19478

966,144

13-Aug-2015

14:21

IA-64

Srv.sys

6.0.6002.23788

967,168

13-Aug-2015

14:19

IA-64

For all supported IA-64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.0.6002.19478

145,920

13-Aug-2015

14:36

x64

Srvnet.sys

6.0.6002.23788

146,944

13-Aug-2015

14:42

x64

Srv.sys

6.0.6002.19478

450,560

13-Aug-2015

14:36

x64

Srv.sys

6.0.6002.23788

449,536

13-Aug-2015

14:43

x64


Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

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