Applies To.NET

Applies to:

Microsoft .NET Framework 3.5

Note:

Revised June 15, 2023 to correct the wording of the known issue to X.509 certificate

Revised on June 20, 2023 to fix the link for CVE-2023-32030

Revised on July 5th, 2023 to add resolution to known issue.

REMINDER

  • As a reminder to advanced IT administrators, updates to .NET Framework 3.5 for Windows Embedded 8.1 and Windows Server 2012 R2 should only be applied on systems where .NET Framework 3.5 is present and enabled. Customers who attempt to pre-install updates to .NET Framework 3.5 to offline images that do not contain the .NET Framework 3.5 product enabled will expose these systems to failures to enable .NET Framework 3.5 after the systems are online. For more extensive information about deploying .NET Framework 3.5, see Microsoft .NET Framework 3.5 Deployment Considerations.

  • 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.

The June 13, 2023 update for Windows Embedded 8.1 and Windows Server 2012 R2 includes security improvements in .NET Framework 3.5. We recommend that you apply this update as part of your regular maintenance routines. Verify that you have installed the required updates listed in the How to get this update section before installing this update.

Summary

CVE-2023-29326 - .NET Framework Remote Code Execution Vulnerability This security update addresses a vulnerability in WPF where the BAML offers other ways to instantiate types that leads to an elevation of privilege. For more information see CVE-2023-29326.

CVE-2023-24895 - .NET Framework Remote Code Execution Vulnerability This security update addresses a vulnerability in the WPF XAML parser where an unsandboxed parser can lead to remote code execution. For more information see CVE-2023-24895.

CVE-2023-24936 - .NET Framework Elevation of Privilege Vulnerability This security update addresses a vulnerability in bypass restrictions when deserializing a DataSet or DataTable from XML, leading to an elevation of privilege. For more information see CVE-2023-24936.

CVE-2023-29331 - .NET Framework Denial of Service Vulnerability This security update addresses a vulnerability where the AIA fetching process for client certificates can lead to denial of service. For more information see CVE 2023-29331.

CVE-2023-32030 - .NET Framework Denial of Service Vulnerability This security update addresses a vulnerability where X509Certificate2 file handling can lead to denial of service. For more information see CVE-2023-32030.

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 5027533 Description of the Security Only Update for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Embedded 8.1 and Windows Server 2012 R2 (KB5027533)

Known issues in this update

Symptom

This update may impact how .NET Framework runtime imports X.509 Certificates. For more information about this issue, see KB5025823

Workaround

To mitigate this issue, see KB5025823.

Symptom

This update may impact scenarios where .NET framework 3.5 scenarios might crash during startup whenever an instrumenting profiler is active

Workaround

To mitigate this issue, see KB5028920.

How to get this update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 3.5 installed.

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

No

See the other options below.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

Yes

This individual .NET Framework product update will be installed, as applicable, by applying the operating system update. For more information about operating system updates see additional information about this update section.

Restart requirement

You may need to restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

Update deployment information

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

20230613 Security update deployment information: June 13, 2023

File Information

File hash information

File name

SHA256 hash

windows8.1-kb5027116-x86.msu

155049BACEB2E4DF5E4BD4E32866E6ADB4ABCB1E5373F3508185CE536EAB2986

windows8.1-kb5027116-x64.msu

17510515F4C387ED83092A168C66529EF624E34E7055AA9856493F95119B70E4

File name

File version

File size

Date

Time

Platform

Presentationframework.dll

3.0.6920.8954

5,292,032

24-Apr-2023

00:27

x86

Reachframework.dll

3.0.6920.8954

536,576

24-Apr-2023

00:27

x86

System.dll

2.0.50727.8970

3,211,264

05-May-2023

00:20

x86

Windowsbase.dll

3.0.6920.8954

1,257,472

24-Apr-2023

00:27

x86

Big5.nlp

Not applicable

66,728

24-Apr-2023

00:20

Not applicable

Bopomofo.nlp

Not applicable

82,172

24-Apr-2023

00:20

Not applicable

Ksc.nlp

Not applicable

116,756

24-Apr-2023

00:20

Not applicable

Mscorlib.dll

2.0.50727.8970

4,628,480

05-May-2023

00:20

x86

Normidna.nlp

Not applicable

59,342

24-Apr-2023

00:20

Not applicable

Normnfc.nlp

Not applicable

45,794

24-Apr-2023

00:20

Not applicable

Normnfd.nlp

Not applicable

39,284

24-Apr-2023

00:20

Not applicable

Normnfkc.nlp

Not applicable

66,384

24-Apr-2023

00:20

Not applicable

Normnfkd.nlp

Not applicable

60,294

24-Apr-2023

00:20

Not applicable

Prc.nlp

Not applicable

83,748

24-Apr-2023

00:20

Not applicable

Prcp.nlp

Not applicable

83,748

24-Apr-2023

00:20

Not applicable

Sortkey.nlp

Not applicable

262,148

24-Apr-2023

00:20

Not applicable

Sorttbls.nlp

Not applicable

20,320

24-Apr-2023

00:20

Not applicable

Xjis.nlp

Not applicable

28,288

24-Apr-2023

00:21

Not applicable

Mscordacwks.dll

2.0.50727.8970

993,728

05-May-2023

00:20

x86

Mscorwks.dll

2.0.50727.8970

6,414,264

05-May-2023

00:20

x86

Sos.dll

2.0.50727.8970

393,152

05-May-2023

00:20

x86

Presentationcore.dll

3.0.6920.8954

4,222,976

24-Apr-2023

00:27

x86

Presentationfontcache.exe.config

Not applicable

161

24-Apr-2023

00:27

Not applicable

Wpfgfx_v0300.dll

3.0.6920.8954

1,741,192

24-Apr-2023

00:27

x86

System.data.dll

2.0.50727.8970

2,983,936

07-May-2023

00:20

x86

System.printing.dll

3.0.6920.8954

372,736

24-Apr-2023

00:27

x86

Penimc.dll

3.0.6920.8954

72,128

24-Apr-2023

00:27

x86

Presentationframework.dll

3.0.6920.8954

5,292,032

24-Apr-2023

00:27

x86

Presentationhostdll.dll

3.0.6920.8954

134,552

24-Apr-2023

00:27

x86

Reachframework.dll

3.0.6920.8954

536,576

24-Apr-2023

00:27

x86

Windowsbase.dll

3.0.6920.8954

1,257,472

24-Apr-2023

00:27

x86

File name

File version

File size

Date

Time

Platform

Big5.nlp

Not applicable

66,728

11-Apr-2023

01:37

Not applicable

Bopomofo.nlp

Not applicable

82,172

11-Apr-2023

01:37

Not applicable

Ksc.nlp

Not applicable

116,756

11-Apr-2023

01:37

Not applicable

Mscorlib.dll

2.0.50727.8970

4,644,864

05-May-2023

00:21

x64

Normidna.nlp

Not applicable

59,342

11-Apr-2023

01:37

Not applicable

Normnfc.nlp

Not applicable

45,794

11-Apr-2023

01:37

Not applicable

Normnfd.nlp

Not applicable

39,284

11-Apr-2023

01:37

Not applicable

Normnfkc.nlp

Not applicable

66,384

11-Apr-2023

01:37

Not applicable

Normnfkd.nlp

Not applicable

60,294

11-Apr-2023

01:37

Not applicable

Prc.nlp

Not applicable

83,748

11-Apr-2023

01:37

Not applicable

Prcp.nlp

Not applicable

83,748

11-Apr-2023

01:37

Not applicable

Sortkey.nlp

Not applicable

262,148

11-Apr-2023

01:37

Not applicable

Sorttbls.nlp

Not applicable

20,320

11-Apr-2023

01:37

Not applicable

Xjis.nlp

Not applicable

28,288

11-Apr-2023

01:37

Not applicable

Mscordacwks.dll

2.0.50727.8970

1,760,664

05-May-2023

00:21

x64

Mscorwks.dll

2.0.50727.8970

10,626,456

05-May-2023

00:21

x64

Sos.dll

2.0.50727.8970

489,360

05-May-2023

00:21

x64

System.dll

2.0.50727.8970

3,211,264

05-May-2023

00:21

x86

Presentationcore.dll

3.0.6920.8954

4,006,400

19-Apr-2023

00:20

x64

Presentationfontcache.exe.config

Not applicable

161

11-Apr-2023

01:40

Not applicable

Wpfgfx_v0300.dll

3.0.6920.8954

2,259,352

19-Apr-2023

00:20

x64

System.data.dll

2.0.50727.8970

3,158,016

07-May-2023

00:20

x64

System.printing.dll

3.0.6920.8954

358,400

19-Apr-2023

00:20

x64

Penimc.dll

3.0.6920.8954

88,968

19-Apr-2023

00:20

x64

Presentationframework.dll

3.0.6920.8954

4,648,960

19-Apr-2023

00:20

x86

Presentationhostdll.dll

3.0.6920.8954

175,512

19-Apr-2023

00:20

x64

Reachframework.dll

3.0.6920.8954

536,576

19-Apr-2023

00:20

x86

Windowsbase.dll

3.0.6920.8954

1,118,208

19-Apr-2023

00:20

x86

Presentationframework.dll

3.0.6920.8954

5,292,032

24-Apr-2023

00:27

x86

Reachframework.dll

3.0.6920.8954

536,576

24-Apr-2023

00:27

x86

System.dll

2.0.50727.8970

3,211,264

05-May-2023

00:20

x86

Windowsbase.dll

3.0.6920.8954

1,257,472

24-Apr-2023

00:27

x86

Big5.nlp

Not applicable

66,728

24-Apr-2023

00:20

Not applicable

Bopomofo.nlp

Not applicable

82,172

24-Apr-2023

00:20

Not applicable

Ksc.nlp

Not applicable

116,756

24-Apr-2023

00:20

Not applicable

Mscorlib.dll

2.0.50727.8970

4,628,480

05-May-2023

00:20

x86

Normidna.nlp

Not applicable

59,342

24-Apr-2023

00:20

Not applicable

Normnfc.nlp

Not applicable

45,794

24-Apr-2023

00:20

Not applicable

Normnfd.nlp

Not applicable

39,284

24-Apr-2023

00:20

Not applicable

Normnfkc.nlp

Not applicable

66,384

24-Apr-2023

00:20

Not applicable

Normnfkd.nlp

Not applicable

60,294

24-Apr-2023

00:20

Not applicable

Prc.nlp

Not applicable

83,748

24-Apr-2023

00:20

Not applicable

Prcp.nlp

Not applicable

83,748

24-Apr-2023

00:20

Not applicable

Sortkey.nlp

Not applicable

262,148

24-Apr-2023

00:20

Not applicable

Sorttbls.nlp

Not applicable

20,320

24-Apr-2023

00:20

Not applicable

Xjis.nlp

Not applicable

28,288

24-Apr-2023

00:21

Not applicable

Mscordacwks.dll

2.0.50727.8970

993,728

05-May-2023

00:20

x86

Mscorwks.dll

2.0.50727.8970

6,414,264

05-May-2023

00:20

x86

Sos.dll

2.0.50727.8970

393,152

05-May-2023

00:20

x86

Presentationcore.dll

3.0.6920.8954

4,222,976

24-Apr-2023

00:27

x86

Presentationfontcache.exe.config

Not applicable

161

24-Apr-2023

00:27

Not applicable

Wpfgfx_v0300.dll

3.0.6920.8954

1,741,192

24-Apr-2023

00:27

x86

System.data.dll

2.0.50727.8970

2,983,936

07-May-2023

00:20

x86

System.printing.dll

3.0.6920.8954

372,736

24-Apr-2023

00:27

x86

Penimc.dll

3.0.6920.8954

72,128

24-Apr-2023

00:27

x86

Presentationframework.dll

3.0.6920.8954

5,292,032

24-Apr-2023

00:27

x86

Presentationhostdll.dll

3.0.6920.8954

134,552

24-Apr-2023

00:27

x86

Reachframework.dll

3.0.6920.8954

536,576

24-Apr-2023

00:27

x86

Windowsbase.dll

3.0.6920.8954

1,257,472

24-Apr-2023

00:27

x86

How to obtain help and support for this update

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