For Microsoft’s January patches, no all-clear (yet)

I’m not ready to give an all-clear to the security patches released Jan. 12, and I want to warn you about one specific update that is affecting HyperV servers and some consumer level workstations.  

KB4535680, also known as Security update for Secure Boot DBX: January 12, 2021, makes improvements to Secure Boot DBX for a number of supported Windows versions. These include Windows Server 2012 x64-bit; Windows Server 2012 R2 x64-bit; Windows 8.1 x64-bit; Windows Server 2016 x64-bit; Windows Server 2019 x64-bit; Windows 10, version 1607 x64-bit; Windows 10; version 1803 x64-bit; Windows 10, version 1809 x64-bit; and Windows 10, version 1909 x64-bit. Key changes affect “Windows devices that [have] Unified Extensible Firmware Interface (UEFI) based firmware that can run with Secure Boot enabled.” The Secure Boot Forbidden Signature Database (DBX) prevents malicious UEFI modules from loading; this update adds additional modules to block malicious attackers who could successfully exploit the vulnerability, bypass secure boot, and load untrusted software.

To read this article in full, please click here

Read more: For Microsoft’s January patches, no all-clear (yet)

Story added 18. January 2021, content source with full text you can find at link above.