Description of the Security and Quality Rollup updates for .NET Framework 3.5 for Windows 8.1, RT 8.1, and Server 2012 R2 (KB 4338424)

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.UnauthorizedAccessExceptionMessage: 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 FrameworkTo 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, clickAdministrative Tools, and then clickMicrosoft Windows Server Update Services 3.0.
2. Expand ComputerName, and then clickAction.
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. Type4340558in theSearchbox, and then clickSearch.
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 thePrograms 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

__

File attributes for all supported x64-based systems

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

__

File attributes for all supported x86-based systems

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

• Help for installing updates: Windows Update FAQ
• Security solutions for IT professionals: TechNet Security Support and Troubleshooting
• Help for protecting your Windows-based products and services from viruses and malware: Microsoft Secure
• Local support according to your country: International Support