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AMD’s SinkClose CPU Flaw: A 20-Year-Old Security Nightmare Unveiled
AMD is waving a red flag over a high-severity CPU flaw named SinkClose. This vulnerability lets attackers with Kernel-level access hop to Ring -2, turning your chip into a malware playground. Affected models span EPYC, Ryzen, and Threadripper series. Buckle up; this could get bumpy!
Hot Take:
Looks like AMD’s processors have been harboring a dirty little secret for almost two decades! SinkClose is here to remind us that even our beloved chips might have more skeletons in their closet than a haunted house on Halloween.
Key Points:
- AMD warns about high-severity CPU vulnerability named SinkClose (CVE-2023-31315).
- SinkClose allows attackers with Kernel-level (Ring 0) privileges to gain Ring -2 privileges.
- Ring -2 is associated with System Management Mode (SMM), crucial for low-level system operations.
- SinkClose impacts multiple generations of AMD EPYC, Ryzen, and Threadripper processors.
- Mitigations have been released for some CPUs, with more fixes on the way.
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