Microsoft Knowledge Base Archive

Summary

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an attacker logs on to a targeted system and runs a specially crafted application that, by way of a race condition, results in references to memory locations that have already been freed.

To learn more about the vulnerability, see Microsoft Security Bulletin MS15-133.

↑ Back to the top

More Information

Important

All future security and nonsecurity updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.
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.

↑ Back to the top

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.

Note For Windows RT and Windows RT 8.1, this update is available through Windows Update only.

Method 2: Microsoft Download Center

↑ Back to the top

More Information

How to obtain help and support for this security update

↑ Back to the top

File Information

File hash information

File name	SHA1 hash	SHA256 hash
Windows8-RT-KB3109103-x64.msu	89D61082BFDA039DA1D77D64C4519405925B77F5	1B212216C638E1DF1539A94FF1F69C7E78B3A8B22B4DA21946EEE8C2987E67E1
Windows8.1-KB3109103-x86.msu	7879999F1AD4E307835C800722F5577FBBFF5152	330CC8F10E75F922B95186DD5091034C038AACE82F98D1D07A0EB6CF9F56F2F3
Windows8-RT-KB3109103-x86.msu	FBA9CE94EEEB92D6A3EB6407D189C97F72A54195	8A426E9294F41195F0E70641EBB27A34EF07A7035C353F06DC0B5D793E35FED3
Windows6.1-KB3109103-x86.msu	C0F1CE4EAFBE4A952A0FF22199F7952FD82B865F	39688BDC1FA9C409AE63ECC0F44940386393B1B6BCE59F451A2AE49F1F55D200
Windows6.0-KB3109103-ia64.msu	BE1B15BD13658B18B73843672502091608A11B95	8BCE33E79E14A69764CA824AC8F20CDBEA73EB15B7FA8002A79FC5178B254EB4
Windows6.0-KB3109103-x64.msu	92A49AA461DBE398F8EAF1A8DF7572903C59A6F5	3AB66CC3C2D8BA0B5AFBF5DC3903E2674B5BC91E2118AE5E36E5A5829F705AA1
Windows8.1-KB3109103-x64.msu	E72F10A63EBCA35733B131BFB03F8CD07575FA02	CFBC0D1FAC53F3BAE75F81FEC38D37EEC3B9BA9CD554EBD52D80F4B8FF2A9EB9
Windows6.1-KB3109103-ia64.msu	9AD27971ECC91570812D3E8A8ABEE596979E1AE7	16EEC59D13AD7F1F684512E76BF895B55665BA1991387295552A79D53BB19647
Windows6.0-KB3109103-x86.msu	193C96E23CD6939C822D0F51DDC1B5D3A369821E	1A9E735FF072BFECF3BC4CAB05CF2DD2BA5DFCFA61150D6AC501F91109EBBFBF
Windows6.1-KB3109103-x64.msu	5A443C08AC3F02AE8A7EC1100F306F8CF0D216DB	3CBDE3DF10F70BCBE686F8B3943B4031D4A18D9715C99786DF5C7F746781D8BB

File information

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). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.

Windows 8 and Windows Server 2012 file information

Notes

The files that apply to a specific product, milestone (RTM, 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
6.2.920 0.17xxx Windows 8, Windows RT, or Windows Server 2012 RTM GDR
6.2.920 0.21xxx Windows 8, Windows RT, or Windows Server 2012 RTM 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.
The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

Version	Product	Milestone	Service branch
6.2.920 0.17xxx	Windows 8, Windows RT, or Windows Server 2012	RTM	GDR
6.2.920 0.21xxx	Windows 8, Windows RT, or Windows Server 2012	RTM	LDR

For all supported x64-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.2.9200.17565	147,968	05-Nov-2015	09:55	x64
Wshrm.dll	6.2.9200.16384	17,408	26-Jul-2012	03:08	x64
Rmcast.sys	6.2.9200.21683	147,968	05-Nov-2015	09:40	x64
Wshrm.dll	6.2.9200.16384	17,408	26-Jul-2012	03:08	x64
Wshrm.dll	6.2.9200.16384	15,360	26-Jul-2012	03:20	x86
Wshrm.dll	6.2.9200.16384	15,360	26-Jul-2012	03:20	x86

For all supported x86-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.2.9200.17565	123,392	05-Nov-2015	09:57	x86
Wshrm.dll	6.2.9200.16384	15,360	26-Jul-2012	03:20	x86
Rmcast.sys	6.2.9200.21683	123,392	05-Nov-2015	10:11	x86
Wshrm.dll	6.2.9200.16384	15,360	26-Jul-2012	03:20	x86

Windows 8.1 and Windows Server 2012 R2 file information

Notes

The files that apply to a specific product, milestone (RTM, 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
6.3.960 0.17 xxx Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 RTM GDR
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.
The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

Version	Product	Milestone	Service branch
6.3.960 0.17 xxx	Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2	RTM	GDR

For all supported x86-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.3.9600.18119	121,856	05-Nov-2015	08:21	x86
Wshrm.dll	6.3.9600.17415	14,848	29-Oct-2014	01:58	x86

For all supported x64-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.3.9600.18119	145,408	05-Nov-2015	08:59	x64
Wshrm.dll	6.3.9600.17415	17,920	29-Oct-2014	02:42	x64
Wshrm.dll	6.3.9600.17415	14,848	29-Oct-2014	01:58	x86

Windows 7 and Windows Server 2008 R2 file information

Notes

The files that apply to a specific product, milestone (RTM, 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
6.1.760 1.18xxx Windows 7 or Windows Server 2008 R2 SP1 GDR
6.1.760 1.23 xxx Windows 7 or Windows Server 2008 R2 SP1 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.
The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

Version	Product	Milestone	Service branch
6.1.760 1.18xxx	Windows 7 or Windows Server 2008 R2	SP1	GDR
6.1.760 1.23 xxx	Windows 7 or Windows Server 2008 R2	SP1	LDR

For all supported x86-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.1.7601.19055	117,760	05-Nov-2015	09:48	x86
Wshrm.dll	6.1.7601.19055	14,848	05-Nov-2015	19:02	x86
Rmcast.sys	6.1.7601.23260	117,760	05-Nov-2015	09:43	x86
Wshrm.dll	6.1.7601.23260	14,848	05-Nov-2015	19:06	x86

For all supported ia64-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.1.7601.19055	371,200	05-Nov-2015	09:17	IA-64
Wshrm.dll	6.1.7601.19055	40,448	05-Nov-2015	19:07	IA-64
Rmcast.sys	6.1.7601.23260	371,200	05-Nov-2015	09:17	IA-64
Wshrm.dll	6.1.7601.23260	40,448	05-Nov-2015	23:22	IA-64
Wshrm.dll	6.1.7601.19055	14,848	05-Nov-2015	19:02	x86
Wshrm.dll	6.1.7601.23260	14,848	05-Nov-2015	19:06	x86

For all supported x64-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.1.7601.19055	146,944	05-Nov-2015	09:53	x64
Wshrm.dll	6.1.7601.19055	17,408	05-Nov-2015	19:05	x64
Rmcast.sys	6.1.7601.23260	146,944	05-Nov-2015	10:00	x64
Wshrm.dll	6.1.7601.23260	17,408	05-Nov-2015	23:25	x64
Wshrm.dll	6.1.7601.19055	14,848	05-Nov-2015	19:02	x86
Wshrm.dll	6.1.7601.23260	14,848	05-Nov-2015	19:06	x86

Windows Vista and Windows Server 2008 file information

Notes

The files that apply to a specific product, milestone (RTM, 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
6.0.600 2.19xxx Windows Vista or Windows Server 2008 SP2 GDR
6.0.600 2.23xxx Windows Vista or Windows Server 2008 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.
The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

Version	Product	Milestone	Service branch
6.0.600 2.19xxx	Windows Vista or Windows Server 2008	SP2	GDR
6.0.600 2.23xxx	Windows Vista or Windows Server 2008	SP2	LDR

For all supported ia64-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.0.6002.19534	365,568	05-Nov-2015	07:45	IA-64
Wshrm.dll	6.0.6001.18000	40,448	19-Jan-2008	08:29	IA-64
Rmcast.sys	6.0.6002.23844	365,568	05-Nov-2015	07:20	IA-64
Wshrm.dll	6.0.6002.23844	40,448	05-Nov-2015	07:51	IA-64
Wshrm.dll	6.0.6002.19534	14,848	05-Nov-2015	09:07	x86
Wshrm.dll	6.0.6002.23844	14,848	05-Nov-2015	08:20	x86

For all supported x64-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.0.6002.19534	140,800	05-Nov-2015	07:54	x64
Wshrm.dll	6.0.6002.19534	17,408	05-Nov-2015	08:55	x64
Rmcast.sys	6.0.6002.23844	140,800	05-Nov-2015	07:34	x64
Wshrm.dll	6.0.6002.23844	17,408	05-Nov-2015	08:14	x64
Wshrm.dll	6.0.6002.19534	14,848	05-Nov-2015	09:07	x86
Wshrm.dll	6.0.6002.23844	14,848	05-Nov-2015	08:20	x86

For all supported x86-based versions

File name	File version	File size	Date	Time	Platform
Rmcast.sys	6.0.6002.19534	113,664	05-Nov-2015	07:34	x86
Wshrm.dll	6.0.6000.16386	14,848	02-Nov-2006	09:46	x86
Rmcast.sys	6.0.6002.23844	113,664	05-Nov-2015	07:10	x86
Wshrm.dll	6.0.6002.23844	14,848	05-Nov-2015	08:20	x86

↑ Back to the top

Article ID	:	3109103
Revision	:	1
Created on	:	1/7/2017
Published on	:	12/8/2015
Exists online	:	False
Views	:	438

Microsoft KB Archive Search

MS15-133: Description of the security update for Windows PGM: December 8, 2015

Summary

More Information

How to obtain and install the update

Method 1: Windows Update

More Information

File Information

Windows 8 and Windows Server 2012 file information

For all supported x64-based versions

For all supported x86-based versions

Windows 8.1 and Windows Server 2012 R2 file information

For all supported x86-based versions

For all supported x64-based versions

Windows 7 and Windows Server 2008 R2 file information

For all supported x86-based versions

For all supported ia64-based versions

For all supported x64-based versions

Windows Vista and Windows Server 2008 file information

For all supported ia64-based versions

For all supported x64-based versions

For all supported x86-based versions

Applies to: