AMD Says New Sinkclose CPU Vulnerability Only Affects ‘Seriously Breached Systems’

August 13, 2024 at 06:42AM IOActive disclosed Sinkclose, a new AMD processor vulnerability that has been around for 20 years, targeting SMM. Exploiting the flaw needs deep understanding of the architecture, but not physical access. AMD has published mitigations and firmware updates, prioritizing security despite it affecting seriously breached systems. The malware planted is stealthy … Read more

AMD won’t patch Sinkclose security bug on older Zen CPUs

August 12, 2024 at 11:21PM AMD processors dating back to 2006 have a security vulnerability called SinkClose, which allows rogue users to run code in System Management Mode (SMM). Only models made since 2020 will be patched. The flaw affects AMD CPUs dating back nearly 20 years. Processors receiving fixes will get firmware updates via … Read more