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Source:
KB5034467 Cumulative Update Preview .NET Framework 3.5 and 4.8.1 (22H2 and 23H2)
January 23, 2024 - KB5034467 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2 The January 23, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in...
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January 9, 2024 - KB5033920 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2
The January 9, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections.
Summary
Security Improvements
CVE-2023-36042 – .NET Framework Denial of Service Vulnerability
This security update addresses a security feature bypass vulnerability detailed in CVE-2023-36042.
CVE-2023-0056 – .NET Framework Security Feature Bypass Vulnerability
This security update addresses a security feature bypass vulnerability detailed in CVE-2023-0056 .
CVE-2023-0057 – .NET Framework Security Feature Vulnerability
This security update addresses a elevation of privilege vulnerability detailed in CVE-2023-0057.
CVE-2023-21312 – .NET Framework Denial of Service Vulnerability
This security update addresses a denial of service vulnerability detailed in CVE-2023-21312 .
.NET Framework Remote Code Execution Vulnerability
This security update addresses a remote code execution vulnerability to HTTP .NET remoting server channel chain.
Quality and Reliability Improvements
There are no new Quality and Reliability Improvements in this update.
Known issues in this update
Microsoft is not currently aware of any issues in this update.
How to get this update
Install this update
Release Channel Available Next Step Windows Update and Microsoft Update Yes None. This update will be downloaded and installed automatically from Windows Update. Windows Update for Business Yes None. This update will be downloaded and installed automatically from Windows Update. 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 update will automatically sync with WSUS if you configure as follows:
Product: Windows 11, version 22H2 and Windows 11, version 23H2
Classification: Security Updates
File information
For a list of the files that are provided in this update, download the file information for cumulative update.
Prerequisites
To apply this update, you must have .NET Framework 3.5 or 4.8.1 installed.
Restart requirement
You must 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.
Source:
.NET Framework January 2024 Security and Quality Rollup - .NET Blog
January 2024 Security and Quality Rollup Updates for .NET Framework
devblogs.microsoft.com
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