#SystemManagementMode

AMD Issues Updates for Silicon-Level ‘SinkClose’ Processor Flaw

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August 12, 2024 at 04:42PM AMD has issued firmware updates to address a nearly two-decades-old silicon-level vulnerability in its EPYC data center processors and its Ryzen processors for PCs and embedded systems. The “SinkClose” flaw affects a component in the processor protecting System Management Mode, potentially allowing attackers to implant almost undetectable malware. AMD has … Read more

New AMD SinkClose flaw helps install nearly undetectable malware

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August 9, 2024 at 01:02PM AMD has issued a warning about a high-severity CPU vulnerability, SinkClose, affecting multiple generations of EPYC, Ryzen, and Threadripper processors. This flaw allows attackers to gain Ring -2 privileges, enabling malware installation undetectable by typical security tools. The attack has gone undetected for almost 20 years and poses significant threats, … Read more