ZENHAMMER – First Rowhammer Attack Impacting Zen-based AMD Platforms

Despite AMD’s growing market share with Zen CPUs, Rowhammer attacks were absent due to challenges in reverse engineering DRAM addressing, synchronizing with refresh commands, and achieving sufficient row activation throughput.  Researchers addressed these through ZENHAMMER, the first Rowhammer attack on recent AMD CPUs. ZENHAMMER reverse engineers non-linear addressing uses crafted access patterns for synchronization, and […]

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