DRAMA: Exploiting DRAM Addressing for Cross-CPU Attacks

Understand

In cloud computing environments, multiple tenants are often co-located on the same multi-processor system.

• Thus, preventing information leakage between tenants is crucial.
• While the hypervisor enforces software isolation, shared hardware, such as the CPU cache or memory bus, can leak sensitive information.
• For security reasons, shared memory between tenants is typically disabled.