Heap corruption occurs in the Svchost.exe process in Windows 7 or in Windows Server 2008 R2

Article translations Article translations
Article ID: 2751855 - View products that this article applies to.
Expand all | Collapse all

On This Page

Symptoms

On a computer that is running Windows 7 or Windows Server 2008 R2, heap corruption randomly occurs in the Svchost.exe process. This heap corruption causes a critical exception together with the following error code:
STATUS_HEAP_CORRUPTION (0xC0000374)
Notes
  • The stack dump file that is generated when this issue occurs indicates possible heap corruption in the following location:
    sspicli!DisconnectRpcConnection+0x23
  • The service that fails when this issue occurs may restart automatically. Therefore, you may not notice the failure itself. You may only notice that a new application dump file is created.

Cause

This issue may occur if the Wired AutoConfig service or the Remote Access Connection Manager service calls the RasEapInitialize method in two threads at the same time.

Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • 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:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.1.760 0.17xxxWindows 7 and Windows Server 2008 R2RTMGDR
    6.1.760 0.21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1.17xxxWindows 7 and Windows Server 2008 R2SP1GDR
    6.1.760 1.22xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • 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 the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Rastls.dll6.1.7600.17122372,22406-Sep-201216:40x86
Rastls.dll6.1.7600.21320372,73606-Sep-201219:08x86
Rastls.dll6.1.7601.17950372,22406-Sep-201216:33x86
Rastls.dll6.1.7601.22108373,24806-Sep-201216:31x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Rastls.dll6.1.7600.17122424,44806-Sep-201217:28x64
Rastls.dll6.1.7600.21320424,96006-Sep-201219:58x64
Rastls.dll6.1.7601.17950424,44806-Sep-201217:41x64
Rastls.dll6.1.7601.22108424,96006-Sep-201218:03x64
Rastls.dll6.1.7600.17122372,22406-Sep-201216:40x86
Rastls.dll6.1.7600.21320372,73606-Sep-201219:08x86
Rastls.dll6.1.7601.17950372,22406-Sep-201216:33x86
Rastls.dll6.1.7601.22108373,24806-Sep-201216:31x86
For all supported IA-64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTime
Rastls.dll6.1.7600.17122756,73606-Sep-201216:29
Rastls.dll6.1.7600.21320758,78406-Sep-201219:12
Rastls.dll6.1.7601.17950757,24806-Sep-201216:25
Rastls.dll6.1.7601.22108758,78407-Sep-201212:20

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameX86_5905d4f4b73e20a0020330b1b1018667_31bf3856ad364e35_6.1.7600.21320_none_a97d103b1d76c4d8.manifest
File versionNot applicable
File size694
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameX86_ce1419fb0131fc7715283e6bcb1d7c22_31bf3856ad364e35_6.1.7601.22108_none_02144cc9945d5554.manifest
File versionNot applicable
File size694
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameX86_d05c5f024c87b90c5ec4557b00061133_31bf3856ad364e35_6.1.7601.17950_none_ca385c7f70446d23.manifest
File versionNot applicable
File size694
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameX86_dda6d6e7b5c527aa126c1f419148c2ea_31bf3856ad364e35_6.1.7600.17122_none_f63afcf50d157c6e.manifest
File versionNot applicable
File size694
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameX86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.17122_none_6c794627b149a166.manifest
File versionNot applicable
File size4,741
Date (UTC)06-Sep-2012
Time (UTC)17:07
PlatformNot applicable
File nameX86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.21320_none_6d00e444ca690ba9.manifest
File versionNot applicable
File size4,741
Date (UTC)06-Sep-2012
Time (UTC)19:41
PlatformNot applicable
File nameX86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.17950_none_6e3d5c99ae89f85c.manifest
File versionNot applicable
File size4,741
Date (UTC)06-Sep-2012
Time (UTC)17:10
PlatformNot applicable
File nameX86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.22108_none_6f04e372c7780a6b.manifest
File versionNot applicable
File size4,741
Date (UTC)06-Sep-2012
Time (UTC)17:05
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_3211bf4496501bb5ec9520fbfe93a118_31bf3856ad364e35_6.1.7600.21320_none_adf14b34733c9b9c.manifest
File versionNot applicable
File size1,036
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameAmd64_5aa4c8e0dcea69c57aad41b0ed4910c8_31bf3856ad364e35_6.1.7601.17950_none_4577e799717bfff1.manifest
File versionNot applicable
File size698
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameAmd64_ac44850308fd986af0bdb482d8e6458d_31bf3856ad364e35_6.1.7601.17950_none_b0e1886e0a6b57d2.manifest
File versionNot applicable
File size1,036
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameAmd64_cc23498f1840cce27475c1babe73469f_31bf3856ad364e35_6.1.7601.22108_none_54b7d563e1760b85.manifest
File versionNot applicable
File size698
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameAmd64_d9a8cc45bc3566ee0450ea7a2e22eade_31bf3856ad364e35_6.1.7600.17122_none_c048b61e2dcec03d.manifest
File versionNot applicable
File size1,036
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameAmd64_e1d1dbe08f0d82f03829a0379f4b495c_31bf3856ad364e35_6.1.7601.22108_none_87ff663500455b58.manifest
File versionNot applicable
File size1,036
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameAmd64_e1fb67f2de0c0b6026880ac9de2f6866_31bf3856ad364e35_6.1.7600.21320_none_d13bf0bad882e8aa.manifest
File versionNot applicable
File size698
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameAmd64_fa21b3529d7f3cebb8d199b44898f9bc_31bf3856ad364e35_6.1.7600.17122_none_baf5e941c4b14a99.manifest
File versionNot applicable
File size698
Date (UTC)07-Sep-2012
Time (UTC)15:31
PlatformNot applicable
File nameAmd64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.17122_none_c897e1ab69a7129c.manifest
File versionNot applicable
File size4,745
Date (UTC)06-Sep-2012
Time (UTC)18:16
PlatformNot applicable
File nameAmd64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.21320_none_c91f7fc882c67cdf.manifest
File versionNot applicable
File size4,745
Date (UTC)06-Sep-2012
Time (UTC)20:48
PlatformNot applicable
File nameAmd64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.17950_none_ca5bf81d66e76992.manifest
File versionNot applicable
File size4,745
Date (UTC)06-Sep-2012
Time (UTC)18:18
PlatformNot applicable
File nameAmd64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.22108_none_cb237ef67fd57ba1.manifest
File versionNot applicable
File size4,745
Date (UTC)06-Sep-2012
Time (UTC)18:40
PlatformNot applicable
File nameX86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.17122_none_6c794627b149a166.manifest
File versionNot applicable
File size4,741
Date (UTC)06-Sep-2012
Time (UTC)17:07
PlatformNot applicable
File nameX86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.21320_none_6d00e444ca690ba9.manifest
File versionNot applicable
File size4,741
Date (UTC)06-Sep-2012
Time (UTC)19:41
PlatformNot applicable
File nameX86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.17950_none_6e3d5c99ae89f85c.manifest
File versionNot applicable
File size4,741
Date (UTC)06-Sep-2012
Time (UTC)17:10
PlatformNot applicable
File nameX86_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.22108_none_6f04e372c7780a6b.manifest
File versionNot applicable
File size4,741
Date (UTC)06-Sep-2012
Time (UTC)17:05
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_358cbb4668a1754f659f6f47ecee0a76_31bf3856ad364e35_6.1.7601.22108_none_eb00b8be05cdb2a9.manifest
File versionNot applicable
File size1,034
Date (UTC)07-Sep-2012
Time (UTC)15:31
File nameIa64_5e9e0ed79905f4e356d20c2e031e88e1_31bf3856ad364e35_6.1.7601.17950_none_d6ae985afd40020d.manifest
File versionNot applicable
File size1,034
Date (UTC)07-Sep-2012
Time (UTC)15:31
File nameIa64_62d4a83f3a264913f301c23775254135_31bf3856ad364e35_6.1.7600.17122_none_3dfa5ae3a6ee6e16.manifest
File versionNot applicable
File size1,034
Date (UTC)07-Sep-2012
Time (UTC)15:31
File nameIa64_a69b32dd7c7b7f9baeebadca75cd1db6_31bf3856ad364e35_6.1.7600.21320_none_e88765b250ffa63d.manifest
File versionNot applicable
File size1,034
Date (UTC)07-Sep-2012
Time (UTC)15:31
File nameIa64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.17122_none_6c7aea1db147aa62.manifest
File versionNot applicable
File size4,743
Date (UTC)06-Sep-2012
Time (UTC)18:21
File nameIa64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7600.21320_none_6d02883aca6714a5.manifest
File versionNot applicable
File size4,743
Date (UTC)06-Sep-2012
Time (UTC)20:37
File nameIa64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.17950_none_6e3f008fae880158.manifest
File versionNot applicable
File size4,743
Date (UTC)06-Sep-2012
Time (UTC)18:06
File nameIa64_microsoft-windows-rastls_31bf3856ad364e35_6.1.7601.22108_none_6f068768c7761367.manifest
File versionNot applicable
File size4,743
Date (UTC)07-Sep-2012
Time (UTC)12:50

Properties

Article ID: 2751855 - Last Review: October 10, 2012 - Revision: 1.0
Applies to
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Standard
  • Windows Server 2008 R2 Foundation
  • Windows Web Server 2008 R2
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter KB2751855

Give Feedback

 

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com