"New AMD SinkClose Flaw Helps Install Nearly Undetectable Malware"

AMD is warning about "SinkClose," a severe CPU vulnerability affecting multiple generations of EPYC, Ryzen, and Threadripper processors. The vulnerability enables attackers with Kernel-level (Ring 0) privileges to gain Ring -2 privileges and install almost undetectable malware. Ring -2 is one of the highest privilege levels associated with modern CPUs' System Management Mode (SMM) feature, which handles power management, hardware control, security, and more. This article continues to discuss the SinkClose flaw that helps install nearly undetectable malware.

BleepingComputer reports "New AMD SinkClose Flaw Helps Install Nearly Undetectable Malware"

Submitted by grigby1