An attacker can abuse DDR5 Refresh Management so one DRAM bank's activity stalls all other banks, creating a 31.3 KB/s covert channel and up to 67% slowdown of co-running workloads.
Rip-rh: Preventing rowhammer-based inter- process attacks
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RogueRFM: Attacking Refresh Management for Covert-Channel and Denial-of-Service
An attacker can abuse DDR5 Refresh Management so one DRAM bank's activity stalls all other banks, creating a 31.3 KB/s covert channel and up to 67% slowdown of co-running workloads.