New hardware exposes encrypted memory to RAM attacks
A new hardware interposer exposes encrypted memory to RAM attacks, raising significant security concerns for cloud services.
Computer security researchers have uncovered a design flaw in modern encryption hardware that allows access to protected memory, requiring physical access to the system. This vulnerability is particularly relevant in scenarios where cloud service providers guarantee confidential computing. Researchers from KU Leuven, ETH Zurich, Durham University, and Google developed a hardware interposer that disrupts DDR5 write operations, enabling protected virtual machines to operate on stale data.
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