This article also applies to the following:

  • Microsoft .NET Framework 3.5

Summary

This security update resolves the following vulnerabilities:

  • A "remote code execution" vulnerability exists when .NET Framework does not validate input correctly. An attacker who successfully exploits this vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts that have full user rights. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who have administrative user rights. To exploit the vulnerability, an attacker would have to pass specific input to an application through susceptible .NET Framework methods. This security update addresses the vulnerability by correcting how .NET Framework validates input. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-8284.

  • An "elevation of privilege" vulnerability exists in .NET Framework that could allow an attacker to elevate their user rights level. To exploit the vulnerability, an attacker would first have to access the local computer, and then run a malicious program. This update addresses the vulnerability by correcting how .NET Framework enables COM objects. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-8202.

  • A "security feature bypass" vulnerability exists when .NET Framework components do not correctly validate certificates. An attacker could present expired certificates when challenged. This security update addresses the vulnerability by making sure that .NET Framework components correctly validate certificates. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-8356.

Important

  • All 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 updates in the future.

  • 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.

Additional information about this security update

For more information about this security update as it relates to Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2, see the following article in the Microsoft Knowledge Base:

4340558 Security and Quality Rollup updates for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 8.1, RT 8.1, and Server 2012 R2 (KB 4340558)

Known issues

After you install any of the July 2018 .NET Framework Security Updates, a COM component fails to load because of “access denied,” “class not registered,” or “internal failure occurred for unknown reasons” errors. The most common failure signature is the following:

Exception type: System.UnauthorizedAccessException

Message: Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))

For more information about this issue, see the following article in the Microsoft Knowledge Base: 

4345913 "Access Denied" errors and applications with COM activation fail after installing July 2018 Security and Quality Rollup updates for .NET Framework

To resolve this issue, install the August Security and Quality Rollup KB 4345592.

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 get security updates automatically, see Windows Update: FAQ.
 

Method 2: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then click Action.

  3. Click Import Updates.

  4. WSUS opens a browser window in which you may be prompted to install an ActiveX control. You must install the ActiveX control to continue.

  5. After the ActiveX control is installed, you see the Microsoft Update Catalog screen. Type 4340558 in the Search box, and then click Search.

  6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.

  7. After you select all the packages that you require, click View Basket.

  8. To import the packages to your WSUS server, click Import.

  9. After the packages are imported, click Close to return to WSUS.

The updates are now available for installation through WSUS.

Update deployment information

For deployment details for this security update, see the following article in the Microsoft Knowledge Base:

20180710 Security update deployment information: July 10, 2018

Update removal information

Note We do not recommend that you remove any security update. To remove this update, use the Programs and Features item in Control Panel.

Update restart information

This update does not require a system restart after you apply it unless files that are being updated are locked or are being used.

Update replacement information

This update replaces updates KB 4099635 and KB 4291497.

File information

File hash

Package name

Package hash SHA 1

Package hash SHA 2

Windows8.1-KB4338424-x64.msu

E3D28F90C6B9DD7E80217B6FB0869E7B6DFE6738

938BF4A440F81D59E9AA7811E601567F9999B5C4994EA12AB525D5423EF302A6

Windows8.1-KB4338424-x86.msu

0FD741C009EEBF8DD694D7685D27ACE0424D4BA8

73EB97EF51B32FE62D9F318E5C3E1581D7EF9B4CF60BC6BBA9386DE3AD4630BC


The English (United States) version of this update 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.

File name

File version

File size

Date

Time

big5.nlp

66,728

26-Oct-2017

16:06

bopomofo.nlp

82,172

26-Oct-2017

16:06

ksc.nlp

116,756

26-Oct-2017

16:06

mscorlib.dll

2.0.50727.8789

4,571,136

11-Jun-2018

13:09

normidna.nlp

59,342

26-Oct-2017

16:06

normnfc.nlp

45,794

26-Oct-2017

16:06

normnfd.nlp

39,284

26-Oct-2017

16:06

normnfkc.nlp

66,384

26-Oct-2017

16:06

normnfkd.nlp

60,294

26-Oct-2017

16:06

prc.nlp

83,748

26-Oct-2017

16:06

prcp.nlp

83,748

26-Oct-2017

16:06

sortkey.nlp

262,148

26-Oct-2017

16:06

sorttbls.nlp

20,320

26-Oct-2017

16:06

xjis.nlp

28,288

26-Oct-2017

16:06

aspnet_wp.exe

2.0.50727.8762

43,160

22-Apr-2017

13:08

mscordacwks.dll

2.0.50727.8789

1,757,344

11-Jun-2018

13:09

mscorwks.dll

2.0.50727.8789

10,009,752

11-Jun-2018

13:10

sos.dll

2.0.50727.8789

486,032

11-Jun-2018

13:10

system.data.sqlxml.dll

2.0.50727.8773

745,472

29-Nov-2017

05:34

system.management.dll

2.0.50727.8766

389,120

12-Jul-2017

13:08

system.runtime.remoting.dll

2.0.50727.8771

307,200

31-Aug-2017

13:15

system.security.dll

2.0.50727.8784

274,432

28-Mar-2018

13:15

system.web.regularexpressions.dll

2.0.50727.8762

98,304

22-Apr-2017

13:08

system.xml.dll

2.0.50727.8773

2,056,192

29-Nov-2017

05:34

system.dll

2.0.50727.8770

3,203,072

31-Aug-2017

13:15

webengine.dll

2.0.50727.8762

746,648

22-Apr-2017

13:08

wminet_utils.dll

2.0.50727.8766

140,960

12-Jul-2017

13:08

presentationcore.dll

3.0.6920.8773

4,006,400

30-Mar-2017

13:15

presentationfontcache.exe.config

161

22-Aug-2015

13:27

wpfgfx_v0300.dll

3.0.6920.8773

2,256,032

30-Mar-2017

13:15

system.data.dll

2.0.50727.8762

3,150,336

22-Apr-2017

13:08

system.printing.dll

3.0.6920.8773

358,400

30-Mar-2017

13:15

system.web.dll

2.0.50727.8762

5,296,128

22-Apr-2017

13:08

servicemonikersupport.dll

3.0.4506.8800

20,144

11-Jun-2018

13:10

smdiagnostics.dll

3.0.4506.8800

94,208

11-Jun-2018

13:10

smsvchost.exe

3.0.4506.8800

117,376

11-Jun-2018

13:10

system.identitymodel.dll

3.0.4506.8800

405,504

11-Jun-2018

13:09

system.runtime.serialization.dll

3.0.4506.8800

847,872

11-Jun-2018

13:10

system.runtime.serialization.dll

3.0.4506.8800

847,872

11-Jun-2018

13:10

system.servicemodel.dll

3.0.4506.8800

5,332,992

11-Jun-2018

13:10

system.servicemodel.washosting.dll

3.0.4506.8800

32,768

11-Jun-2018

13:10

system.servicemodel.dll

3.0.4506.8800

5,332,992

11-Jun-2018

13:10

penimc.dll

3.0.6920.8773

85,648

30-Mar-2017

13:15

presentationframework.dll

3.0.6920.8773

4,640,768

30-Mar-2017

13:15

presentationhostdll.dll

3.0.6920.8773

172,208

30-Mar-2017

13:15

reachframework.dll

3.0.6920.8773

532,480

30-Mar-2017

13:15

windowsbase.dll

3.0.6920.8773

1,118,208

30-Mar-2017

13:15

system.workflow.activities.dll

3.0.4203.8800

1,060,864

11-Jun-2018

13:10

system.workflow.componentmodel.dll

3.0.4203.8800

1,519,616

11-Jun-2018

13:10

system.workflow.runtime.dll

3.0.4203.8800

454,656

11-Jun-2018

13:10

presentationframework.dll

3.0.6920.8773

5,283,840

30-Mar-2017

13:15

reachframework.dll

3.0.6920.8773

532,480

30-Mar-2017

13:15

smdiagnostics.dll

3.0.4506.8800

110,592

11-Jun-2018

13:11

smsvchost.exe

3.0.4506.8800

129,664

11-Jun-2018

13:11

system.data.sqlxml.dll

2.0.50727.8773

745,472

12-Dec-2017

13:09

system.identitymodel.dll

3.0.4506.8800

446,464

11-Jun-2018

13:11

system.management.dll

2.0.50727.8766

389,120

12-Jul-2017

13:11

system.runtime.remoting.dll

2.0.50727.8771

307,200

31-Aug-2017

13:17

system.runtime.serialization.dll

3.0.4506.8800

970,752

11-Jun-2018

13:11

system.runtime.serialization.dll

3.0.4506.8800

970,752

11-Jun-2018

13:11

system.security.dll

2.0.50727.8784

274,432

28-Mar-2018

13:15

system.servicemodel.dll

3.0.4506.8800

5,992,448

11-Jun-2018

13:11

system.servicemodel.washosting.dll

3.0.4506.8800

32,768

11-Jun-2018

13:11

system.servicemodel.dll

3.0.4506.8800

5,992,448

11-Jun-2018

13:11

system.web.regularexpressions.dll

2.0.50727.8762

98,304

22-Apr-2017

13:09

system.workflow.activities.dll

3.0.4203.8800

1,142,784

11-Jun-2018

13:11

system.workflow.componentmodel.dll

3.0.4203.8800

1,630,208

11-Jun-2018

13:11

system.workflow.runtime.dll

3.0.4203.8800

540,672

11-Jun-2018

13:11

system.xml.dll

2.0.50727.8773

2,056,192

12-Dec-2017

13:09

system.dll

2.0.50727.8770

3,203,072

31-Aug-2017

13:17

windowsbase.dll

3.0.6920.8773

1,257,472

30-Mar-2017

13:15

big5.nlp

66,728

27-Oct-2017

23:27

bopomofo.nlp

82,172

27-Oct-2017

23:27

ksc.nlp

116,756

27-Oct-2017

23:27

mscorlib.dll

2.0.50727.8789

4,554,752

11-Jun-2018

13:11

normidna.nlp

59,342

27-Oct-2017

23:27

normnfc.nlp

45,794

27-Oct-2017

23:27

normnfd.nlp

39,284

27-Oct-2017

23:27

normnfkc.nlp

66,384

27-Oct-2017

23:27

normnfkd.nlp

60,294

27-Oct-2017

23:27

prc.nlp

83,748

27-Oct-2017

23:27

prcp.nlp

83,748

27-Oct-2017

23:27

sortkey.nlp

262,148

27-Oct-2017

23:27

sorttbls.nlp

20,320

27-Oct-2017

23:27

xjis.nlp

28,288

27-Oct-2017

23:27

aspnet_wp.exe

2.0.50727.8762

31,384

22-Apr-2017

13:09

mscordacwks.dll

2.0.50727.8789

990,368

11-Jun-2018

13:11

mscorwks.dll

2.0.50727.8789

5,948,056

11-Jun-2018

13:11

sos.dll

2.0.50727.8789

389,776

11-Jun-2018

13:11

webengine.dll

2.0.50727.8762

437,400

22-Apr-2017

13:09

wminet_utils.dll

2.0.50727.8766

116,896

12-Jul-2017

13:11

presentationcore.dll

3.0.6920.8773

4,222,976

30-Mar-2017

13:15

presentationfontcache.exe.config

161

20-Aug-2015

13:24

wpfgfx_v0300.dll

3.0.6920.8773

1,737,888

30-Mar-2017

13:15

system.data.dll

2.0.50727.8762

2,975,744

22-Apr-2017

13:09

system.printing.dll

3.0.6920.8773

372,736

30-Mar-2017

13:15

system.web.dll

2.0.50727.8762

5,287,936

22-Apr-2017

13:09

servicemonikersupport.dll

3.0.4506.8800

18,096

11-Jun-2018

13:11

system.identitymodel.dll

3.0.4506.8800

446,464

11-Jun-2018

13:11

system.runtime.serialization.dll

3.0.4506.8800

970,752

11-Jun-2018

13:11

system.servicemodel.dll

3.0.4506.8800

5,992,448

11-Jun-2018

13:11

penimc.dll

3.0.6920.8773

68,752

30-Mar-2017

13:15

presentationframework.dll

3.0.6920.8773

5,283,840

30-Mar-2017

13:15

presentationhostdll.dll

3.0.6920.8773

131,248

30-Mar-2017

13:15

reachframework.dll

3.0.6920.8773

532,480

30-Mar-2017

13:15

windowsbase.dll

3.0.6920.8773

1,257,472

30-Mar-2017

13:15

system.workflow.activities.dll

3.0.4203.8800

1,142,784

11-Jun-2018

13:11

system.workflow.componentmodel.dll

3.0.4203.8800

1,630,208

11-Jun-2018

13:11

system.workflow.runtime.dll

3.0.4203.8800

540,672

11-Jun-2018

13:11

The English (United States) version of this update 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.

File name

File version

File size

Date

Time

presentationframework.dll

3.0.6920.8773

5,283,840

30-Mar-2017

13:15

reachframework.dll

3.0.6920.8773

532,480

30-Mar-2017

13:15

smdiagnostics.dll

3.0.4506.8800

110,592

11-Jun-2018

13:11

smsvchost.exe

3.0.4506.8800

129,664

11-Jun-2018

13:11

system.data.sqlxml.dll

2.0.50727.8773

745,472

12-Dec-2017

13:09

system.identitymodel.dll

3.0.4506.8800

446,464

11-Jun-2018

13:11

system.management.dll

2.0.50727.8766

389,120

12-Jul-2017

13:11

system.runtime.remoting.dll

2.0.50727.8771

307,200

31-Aug-2017

13:17

system.runtime.serialization.dll

3.0.4506.8800

970,752

11-Jun-2018

13:11

system.runtime.serialization.dll

3.0.4506.8800

970,752

11-Jun-2018

13:11

system.security.dll

2.0.50727.8784

274,432

28-Mar-2018

13:15

system.servicemodel.dll

3.0.4506.8800

5,992,448

11-Jun-2018

13:11

system.servicemodel.washosting.dll

3.0.4506.8800

32,768

11-Jun-2018

13:11

system.servicemodel.dll

3.0.4506.8800

5,992,448

11-Jun-2018

13:11

system.web.regularexpressions.dll

2.0.50727.8762

98,304

22-Apr-2017

13:09

system.workflow.activities.dll

3.0.4203.8800

1,142,784

11-Jun-2018

13:11

system.workflow.componentmodel.dll

3.0.4203.8800

1,630,208

11-Jun-2018

13:11

system.workflow.runtime.dll

3.0.4203.8800

540,672

11-Jun-2018

13:11

system.xml.dll

2.0.50727.8773

2,056,192

12-Dec-2017

13:09

system.dll

2.0.50727.8770

3,203,072

31-Aug-2017

13:17

windowsbase.dll

3.0.6920.8773

1,257,472

30-Mar-2017

13:15

big5.nlp

66,728

27-Oct-2017

23:27

bopomofo.nlp

82,172

27-Oct-2017

23:27

ksc.nlp

116,756

27-Oct-2017

23:27

mscorlib.dll

2.0.50727.8789

4,554,752

11-Jun-2018

13:11

normidna.nlp

59,342

27-Oct-2017

23:27

normnfc.nlp

45,794

27-Oct-2017

23:27

normnfd.nlp

39,284

27-Oct-2017

23:27

normnfkc.nlp

66,384

27-Oct-2017

23:27

normnfkd.nlp

60,294

27-Oct-2017

23:27

prc.nlp

83,748

27-Oct-2017

23:27

prcp.nlp

83,748

27-Oct-2017

23:27

sortkey.nlp

262,148

27-Oct-2017

23:27

sorttbls.nlp

20,320

27-Oct-2017

23:27

xjis.nlp

28,288

27-Oct-2017

23:27

aspnet_wp.exe

2.0.50727.8762

31,384

22-Apr-2017

13:09

mscordacwks.dll

2.0.50727.8789

990,368

11-Jun-2018

13:11

mscorwks.dll

2.0.50727.8789

5,948,056

11-Jun-2018

13:11

sos.dll

2.0.50727.8789

389,776

11-Jun-2018

13:11

webengine.dll

2.0.50727.8762

437,400

22-Apr-2017

13:09

wminet_utils.dll

2.0.50727.8766

116,896

12-Jul-2017

13:11

presentationcore.dll

3.0.6920.8773

4,222,976

30-Mar-2017

13:15

presentationfontcache.exe.config

161

20-Aug-2015

13:24

wpfgfx_v0300.dll

3.0.6920.8773

1,737,888

30-Mar-2017

13:15

system.data.dll

2.0.50727.8762

2,975,744

22-Apr-2017

13:09

system.printing.dll

3.0.6920.8773

372,736

30-Mar-2017

13:15

system.web.dll

2.0.50727.8762

5,287,936

22-Apr-2017

13:09

servicemonikersupport.dll

3.0.4506.8800

18,096

11-Jun-2018

13:11

system.identitymodel.dll

3.0.4506.8800

446,464

11-Jun-2018

13:11

system.runtime.serialization.dll

3.0.4506.8800

970,752

11-Jun-2018

13:11

system.servicemodel.dll

3.0.4506.8800

5,992,448

11-Jun-2018

13:11

penimc.dll

3.0.6920.8773

68,752

30-Mar-2017

13:15

presentationframework.dll

3.0.6920.8773

5,283,840

30-Mar-2017

13:15

presentationhostdll.dll

3.0.6920.8773

131,248

30-Mar-2017

13:15

reachframework.dll

3.0.6920.8773

532,480

30-Mar-2017

13:15

windowsbase.dll

3.0.6920.8773

1,257,472

30-Mar-2017

13:15

system.workflow.activities.dll

3.0.4203.8800

1,142,784

11-Jun-2018

13:11

system.workflow.componentmodel.dll

3.0.4203.8800

1,630,208

11-Jun-2018

13:11

system.workflow.runtime.dll

3.0.4203.8800

540,672

11-Jun-2018

13:11

 

How to obtain help and support for this security update

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