Description of Security and Quality Rollup for .NET Framework 3.5 SP1 for Windows Server 2012 (KB 4054997)

Notice

This update is included in the February 2018 Preview of the Quality Rollups for .NET Framework 3.5 SP1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows Server 2012 (KB 4074806). Parts of this update were previously included in the Security and Quality rollup (KB 4076493) on February 13, 2018, in the Preview of Quality rollup (KB 4057271) on January 17, 2018, and as part of the Security and Quality rollup (KB 4055265) on January 9, 2018.

Summary

This security update resolves a security feature bypass vulnerability that exists when Microsoft .NET Framework and .NET Core components do not completely validate certificates. This security update addresses the vulnerability by helping to make sure that .NET Framework and .NET Core components completely validate certificates. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-0786.Additionally, this security update resolves a denial of service vulnerability that exists when .NET Framework and .NET Core components improperly process XML documents. This update addresses the vulnerability by correcting how .NET Framework and .NET Core component applications handle XML document processing. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-0764.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.

Additional information about this security update

• Enhanced Key Usage (EKU) is described in section 4.2.1.12 of RFC 5280. This extension indicates one or more purposes for which the certified public key may be used in addition to or instead of the basic purposes that are indicated in the key usage extension. For example, a certificate that is used for the authentication of a client to a server must be configured for Client Authentication. Similarly, a certificate that is used for the authentication of a server must be configured for Server Authentication. With this change, besides requiring the appropriate client/server EKU on certificates, if the root certificate is disabled, the certificate chain validation fails.

When certificates are used for authentication, the authenticator examines the certificate that is provided by the remote endpoint and seeks the correct purpose object identifier in Application Policies extensions. When a certificate is used for client authentication, the object identifier for Client Authentication must be present in the EKU extensions of the certificate, or authentication fails. The object identifier for Client Authentication is 1.3.6.1.5.5.7.3.2. Likewise, when a certificate is used for server authentication, the object identifier for Server Authentication must be present in the EKU extensions of the certificate, or authentication fails. The object identifier for Server Authentication is 1.3.6.1.5.5.7.3.1. Certificates that have no EKU extension continue to authenticate correctly.

First, consider making changes to your component’s certificates to make sure that they are using the correct EKU OID attributes and are secured correctly. If you temporarily cannot access correctly reissued certificates, you can choose to opt in or out of the security change to avoid any connectivity effects. To do this, specify the following appsetting in the configuration file: <appSettings> <add key=“wcf:useLegacyCertificateUsagePolicy” value=“true” /> </appSettings> Note Setting the value to “true” will opt out of the security changes.

• For more information about this security update as it relates to Windows Server 2012, see the following articles in the Microsoft Knowledge Base:
  4074806 February 2018 Preview of the Quality Rollups for .NET Framework 3.5 SP1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows Server 2012 (KB 4074806)4076493 Security and Quality Rollup for .NET Framework 3.5 SP1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows Server 2012 (KB 4076493)4057271 January 2018 Preview of the Quality Rollups for .NET Framework 3.5 SP1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows Server 2012 (KB 4057271)4055265 Security and Quality Rollup for .NET Framework 3.5 SP1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 updates for Windows Server 2012 (KB 4055265)

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: Microsoft Update Catalog

To get the stand-alone package for this update, go to update KB 4074806.

Method 3: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

1. Select Start, selectAdministrative Tools, and then selectMicrosoft Windows Server Update Services 3.0.
2. Expand ComputerName, and then selectAction.
3. Select Import Updates.
4. WSUS will open a browser window in which you may be prompted to install an ActiveX control. Install the ActiveX control to continue.
5. After the control is installed, you will see the Microsoft Update Catalog screen. Enter4074806in theSearchbox, and then selectSearch.
6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Select Add to add them to your basket.
7. When you have selected all the packages that you need, select View Basket.
8. Select Import to import the packages to your WSUS server.
9. Select Close after the packages have been imported to return to WSUS.
   The updates are now available for installation through WSUS.

Update deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:20180109 Security update deployment information: January 9, 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 4049018, KB 4041084, KB4042077, and KB 4057271.

File information

File hash

Package name	PackageHashSHA1	PackageHashSHA2
Windows8-RT-KB4054997-x64.msu	50970956E19125DF30E1ADCFD574B4CEB421A0AC	941EFA22E5C416220F9003191CA5C4280A8A5B867F2B2E816A63DBC0BF2B8A63
Windows8-RT-KB4054997-x86.msu	5CE087471774977A2FB70311AD4653814FAAD358	7A4CBFA96460A6FF5536F2B8D657FF37F400FF849D31A40C33A14F9876AD0E12

File attributes

The English (United States) version of this hotfix 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 together with your current daylight-saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.For all x86-based systemsFile name	File version	File size	Date	Time
presentationframework.dll	3.0.6920.8773	5,283,840	29-Mar-2017	13:09
reachframework.dll	3.0.6920.8773	532,480	29-Mar-2017	13:09
smdiagnostics.dll	3.0.4506.8789	110,592	01-Dec-2017	13:05
smsvchost.exe	3.0.4506.8789	129,664	01-Dec-2017	13:05
system.data.sqlxml.dll	2.0.50727.8773	745,472	01-Dec-2017	13:05
system.identitymodel.dll	3.0.4506.8789	446,464	01-Dec-2017	13:05
system.management.dll	2.0.50727.8766	389,120	12-Jul-2017	13:09
system.runtime.remoting.dll	2.0.50727.8771	307,200	31-Aug-2017	13:08
system.runtime.serialization.dll	3.0.4506.8789	970,752	01-Dec-2017	13:05
system.runtime.serialization.dll	3.0.4506.8789	970,752	01-Dec-2017	13:05
system.security.dll	2.0.50727.8759	270,336	28-Mar-2017	13:09
system.servicemodel.dll	3.0.4506.8789	5,992,448	01-Dec-2017	13:05
system.servicemodel.washosting.dll	3.0.4506.8789	32,768	01-Dec-2017	13:05
system.servicemodel.dll	3.0.4506.8789	5,992,448	01-Dec-2017	13:05
system.web.regularexpressions.dll	2.0.50727.8762	98,304	07-Apr-2017	13:09
system.xml.dll	2.0.50727.8773	2,056,192	01-Dec-2017	13:05
system.dll	2.0.50727.8770	3,203,072	17-Aug-2017	13:09
windowsbase.dll	3.0.6920.8773	1,257,472	29-Mar-2017	13:09
big5.nlp		66,728	28-Dec-2016	04:28
bopomofo.nlp		82,172	28-Dec-2016	04:28
ksc.nlp		116,756	28-Dec-2016	04:28
mscorlib.dll	2.0.50727.8762	4,554,752	07-Apr-2017	13:09
normidna.nlp		59,342	28-Dec-2016	04:28
normnfc.nlp		45,794	28-Dec-2016	04:28
normnfd.nlp		39,284	28-Dec-2016	04:28
normnfkc.nlp		66,384	28-Dec-2016	04:28
normnfkd.nlp		60,294	28-Dec-2016	04:28
prc.nlp		83,748	28-Dec-2016	04:28
prcp.nlp		83,748	28-Dec-2016	04:28
sortkey.nlp		262,148	28-Dec-2016	04:28
sorttbls.nlp		20,320	28-Dec-2016	04:28
xjis.nlp		28,288	28-Dec-2016	04:28
aspnet_wp.exe	2.0.50727.8762	31,384	07-Apr-2017	13:09
mscordacwks.dll	2.0.50727.8762	990,368	07-Apr-2017	13:09
mscorwks.dll	2.0.50727.8762	5,946,520	07-Apr-2017	13:09
sos.dll	2.0.50727.8762	389,776	07-Apr-2017	13:09
webengine.dll	2.0.50727.8762	437,400	07-Apr-2017	13:09
wminet_utils.dll	2.0.50727.8766	116,896	12-Jul-2017	13:09
presentationcore.dll	3.0.6920.8773	4,222,976	29-Mar-2017	13:09
presentationfontcache.exe.config		161	06-Jul-2012	20:04
wpfgfx_v0300.dll	3.0.6920.8773	1,737,888	29-Mar-2017	13:09
system.data.dll	2.0.50727.8762	2,975,744	06-Apr-2017	20:26
system.printing.dll	3.0.6920.8773	372,736	29-Mar-2017	13:09
system.web.dll	2.0.50727.8762	5,287,936	07-Apr-2017	13:09
servicemonikersupport.dll	3.0.4506.8789	18,096	01-Dec-2017	13:05
system.identitymodel.dll	3.0.4506.8789	446,464	01-Dec-2017	13:05
system.runtime.serialization.dll	3.0.4506.8789	970,752	01-Dec-2017	13:05
system.servicemodel.dll	3.0.4506.8789	5,992,448	01-Dec-2017	13:05
penimc.dll	3.0.6920.8773	68,752	29-Mar-2017	13:09
presentationframework.dll	3.0.6920.8773	5,283,840	29-Mar-2017	13:09
presentationhostdll.dll	3.0.6920.8773	131,248	29-Mar-2017	13:09
reachframework.dll	3.0.6920.8773	532,480	29-Mar-2017	13:09
windowsbase.dll	3.0.6920.8773	1,257,472	29-Mar-2017	13:09
For all x64-based systemsFile name	File version	File size	Date	Time
—	—	—	—	—
big5.nlp		66,728	04-Jun-2015	22:48
bopomofo.nlp		82,172	04-Jun-2015	22:48
ksc.nlp		116,756	04-Jun-2015	22:48
mscorlib.dll	2.0.50727.8762	4,571,136	07-Apr-2017	13:09
normidna.nlp		59,342	04-Jun-2015	22:48
normnfc.nlp		45,794	04-Jun-2015	22:48
normnfd.nlp		39,284	04-Jun-2015	22:48
normnfkc.nlp		66,384	04-Jun-2015	22:48
normnfkd.nlp		60,294	04-Jun-2015	22:48
prc.nlp		83,748	04-Jun-2015	22:48
prcp.nlp		83,748	04-Jun-2015	22:48
sortkey.nlp		262,148	04-Jun-2015	22:49
sorttbls.nlp		20,320	04-Jun-2015	22:49
xjis.nlp		28,288	04-Jun-2015	22:49
aspnet_wp.exe	2.0.50727.8762	43,160	07-Apr-2017	13:09
mscordacwks.dll	2.0.50727.8762	1,757,344	07-Apr-2017	13:09
mscorwks.dll	2.0.50727.8762	10,007,704	07-Apr-2017	13:09
sos.dll	2.0.50727.8762	486,032	07-Apr-2017	13:09
system.data.sqlxml.dll	2.0.50727.8773	745,472	01-Dec-2017	13:13
system.management.dll	2.0.50727.8766	389,120	12-Jul-2017	13:09
system.runtime.remoting.dll	2.0.50727.8771	307,200	31-Aug-2017	13:09
system.security.dll	2.0.50727.8759	270,336	28-Mar-2017	13:10
system.web.regularexpressions.dll	2.0.50727.8762	98,304	07-Apr-2017	13:09
system.xml.dll	2.0.50727.8773	2,056,192	01-Dec-2017	13:13
system.dll	2.0.50727.8770	3,203,072	17-Aug-2017	13:09
webengine.dll	2.0.50727.8762	746,648	07-Apr-2017	13:09
wminet_utils.dll	2.0.50727.8766	140,960	12-Jul-2017	13:09
presentationcore.dll	3.0.6920.8773	4,006,400	29-Mar-2017	13:09
presentationfontcache.exe.config		161	06-Jul-2012	20:06
wpfgfx_v0300.dll	3.0.6920.8773	2,256,032	29-Mar-2017	13:09
system.data.dll	2.0.50727.8762	3,150,336	06-Apr-2017	20:26
system.printing.dll	3.0.6920.8773	358,400	29-Mar-2017	13:09
system.web.dll	2.0.50727.8762	5,296,128	07-Apr-2017	13:09
servicemonikersupport.dll	3.0.4506.8789	20,144	01-Dec-2017	13:13
smdiagnostics.dll	3.0.4506.8789	94,208	01-Dec-2017	13:13
smsvchost.exe	3.0.4506.8789	117,376	01-Dec-2017	13:13
system.identitymodel.dll	3.0.4506.8789	405,504	01-Dec-2017	13:13
system.runtime.serialization.dll	3.0.4506.8789	847,872	01-Dec-2017	13:13
system.runtime.serialization.dll	3.0.4506.8789	847,872	01-Dec-2017	13:13
system.servicemodel.dll	3.0.4506.8789	5,332,992	01-Dec-2017	13:13
system.servicemodel.washosting.dll	3.0.4506.8789	32,768	01-Dec-2017	13:13
system.servicemodel.dll	3.0.4506.8789	5,332,992	01-Dec-2017	13:13
penimc.dll	3.0.6920.8773	85,648	29-Mar-2017	13:09
presentationframework.dll	3.0.6920.8773	4,640,768	29-Mar-2017	13:09
presentationhostdll.dll	3.0.6920.8773	172,208	29-Mar-2017	13:09
reachframework.dll	3.0.6920.8773	532,480	29-Mar-2017	13:09
windowsbase.dll	3.0.6920.8773	1,118,208	29-Mar-2017	13:09
presentationframework.dll	3.0.6920.8773	5,283,840	29-Mar-2017	13:09
reachframework.dll	3.0.6920.8773	532,480	29-Mar-2017	13:09
smdiagnostics.dll	3.0.4506.8789	110,592	01-Dec-2017	13:05
smsvchost.exe	3.0.4506.8789	129,664	01-Dec-2017	13:05
system.data.sqlxml.dll	2.0.50727.8773	745,472	01-Dec-2017	13:05
system.identitymodel.dll	3.0.4506.8789	446,464	01-Dec-2017	13:05
system.management.dll	2.0.50727.8766	389,120	12-Jul-2017	13:09
system.runtime.remoting.dll	2.0.50727.8771	307,200	31-Aug-2017	13:08
system.runtime.serialization.dll	3.0.4506.8789	970,752	01-Dec-2017	13:05
system.runtime.serialization.dll	3.0.4506.8789	970,752	01-Dec-2017	13:05
system.security.dll	2.0.50727.8759	270,336	28-Mar-2017	13:09
system.servicemodel.dll	3.0.4506.8789	5,992,448	01-Dec-2017	13:05
system.servicemodel.washosting.dll	3.0.4506.8789	32,768	01-Dec-2017	13:05
system.servicemodel.dll	3.0.4506.8789	5,992,448	01-Dec-2017	13:05
system.web.regularexpressions.dll	2.0.50727.8762	98,304	07-Apr-2017	13:09
system.xml.dll	2.0.50727.8773	2,056,192	01-Dec-2017	13:05
system.dll	2.0.50727.8770	3,203,072	17-Aug-2017	13:09
windowsbase.dll	3.0.6920.8773	1,257,472	29-Mar-2017	13:09
big5.nlp		66,728	28-Dec-2016	04:28
bopomofo.nlp		82,172	28-Dec-2016	04:28
ksc.nlp		116,756	28-Dec-2016	04:28
mscorlib.dll	2.0.50727.8762	4,554,752	07-Apr-2017	13:09
normidna.nlp		59,342	28-Dec-2016	04:28
normnfc.nlp		45,794	28-Dec-2016	04:28
normnfd.nlp		39,284	28-Dec-2016	04:28
normnfkc.nlp		66,384	28-Dec-2016	04:28
normnfkd.nlp		60,294	28-Dec-2016	04:28
prc.nlp		83,748	28-Dec-2016	04:28
prcp.nlp		83,748	28-Dec-2016	04:28
sortkey.nlp		262,148	28-Dec-2016	04:28
sorttbls.nlp		20,320	28-Dec-2016	04:28
xjis.nlp		28,288	28-Dec-2016	04:28
aspnet_wp.exe	2.0.50727.8762	31,384	07-Apr-2017	13:09
mscordacwks.dll	2.0.50727.8762	990,368	07-Apr-2017	13:09
mscorwks.dll	2.0.50727.8762	5,946,520	07-Apr-2017	13:09
sos.dll	2.0.50727.8762	389,776	07-Apr-2017	13:09
webengine.dll	2.0.50727.8762	437,400	07-Apr-2017	13:09
wminet_utils.dll	2.0.50727.8766	116,896	12-Jul-2017	13:09
presentationcore.dll	3.0.6920.8773	4,222,976	29-Mar-2017	13:09
presentationfontcache.exe.config		161	06-Jul-2012	20:04
wpfgfx_v0300.dll	3.0.6920.8773	1,737,888	29-Mar-2017	13:09
system.data.dll	2.0.50727.8762	2,975,744	06-Apr-2017	20:26
system.printing.dll	3.0.6920.8773	372,736	29-Mar-2017	13:09
system.web.dll	2.0.50727.8762	5,287,936	07-Apr-2017	13:09
servicemonikersupport.dll	3.0.4506.8789	18,096	01-Dec-2017	13:05
system.identitymodel.dll	3.0.4506.8789	446,464	01-Dec-2017	13:05
system.runtime.serialization.dll	3.0.4506.8789	970,752	01-Dec-2017	13:05
system.servicemodel.dll	3.0.4506.8789	5,992,448	01-Dec-2017	13:05
penimc.dll	3.0.6920.8773	68,752	29-Mar-2017	13:09
presentationframework.dll	3.0.6920.8773	5,283,840	29-Mar-2017	13:09
presentationhostdll.dll	3.0.6920.8773	131,248	29-Mar-2017	13:09
reachframework.dll	3.0.6920.8773	532,480	29-Mar-2017	13:09
windowsbase.dll	3.0.6920.8773	1,257,472	29-Mar-2017	13:09

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