Overview
KB5049984, released on January 14, 2025, addresses several critical issues in Windows Server version 23H2 (OS Build 25398.1369). This security update is part of Microsoft's ongoing efforts to enhance system stability and security. The update includes quality improvements and fixes for specific problems that users have encountered, particularly related to virtual machine operations and driver vulnerabilities. It is essential for maintaining the integrity and performance of Windows Server environments, especially for those utilizing nested virtualization and managing vulnerable drivers.
General Purpose
The primary purpose of KB5049984 is to resolve a significant issue where Windows guest machines fail to start when nested virtualization is enabled on hosts supporting AVX10. Additionally, this update enhances security by adding to the Windows Kernel Vulnerable Driver Blocklist, which helps protect against Bring Your Own Vulnerable Driver (BYOVD) attacks. This update also includes improvements to the servicing stack, ensuring that the system can reliably receive and install future updates. Overall, KB5049984 is crucial for users who rely on virtual machines and need to maintain a secure server environment.
General Sentiment
The general sentiment surrounding KB5049984 appears to be cautiously optimistic. Users appreciate the fixes related to virtual machine startup issues and the proactive measures taken against vulnerable drivers. However, there are concerns regarding the known issues, particularly the failure of the OpenSSH service to start after the installation of the October 2024 security update. This has led to some frustration among users, especially those in enterprise and educational settings. While the update is deemed necessary for security and stability, the reported issues may cause hesitation among some users regarding immediate installation.
Known Issues
- The OpenSSH service fails to start after the October 2024 security update, preventing SSH connections.
- The issue affects enterprise, IoT, and education customers, with limited device impact.
- A temporary workaround involves updating permissions on affected directories (C:ProgramDatassh and C:ProgramDatasshlogs) to allow full control for SYSTEM and Administrators, while providing read access for Authenticated Users.
- Microsoft is investigating the issue and plans to provide a resolution in a future update.
Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2025-01-17 06:30 PM