#DDR5

New ZenHammer Attack Bypasses Rowhammer Defenses on AMD CPUs

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March 28, 2024 at 08:03AM Cybersecurity researchers from ETH Zurich have developed a new variant of the RowHammer DRAM attack called ZenHammer. This technique triggers bit flips on AMD Zen 2, Zen 3, and DDR5 devices, emphasizing the vulnerability of AMD systems to RowHammer attacks. Despite mitigations like Target Row Refresh, there are concerns about … Read more

ZenHammer Attack Targets DRAM on Systems With AMD CPUs

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March 26, 2024 at 11:00AM Researchers at ETH Zürich have demonstrated that Rowhammer attacks can be conducted against DDR4 and DDR5 memory on AMD Zen 2 and Zen 3 systems, despite mitigation efforts. They have named this variant ZenHammer and disclosed their findings to AMD, which has published a security bulletin and provided mitigation recommendations. … Read more