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Infosec In Brief Nvidia last week advised customers to ensure they employ mitigations against Rowhammer attacks, after researchers found one of its workstation-grade GPUs is susceptible to the exploit.

Rowhammer is a method of attempting to corrupt memory by repeatedly "hammering" rows of memory cells with a burst of read or write operations. The repeat operations can create electrical interference between rows of memory cells, potentially disrupting operations.

In a July 9 advisory, Nvidia noted that researchers at the University of Toronto recently “demonstrated a successful Rowhammer exploitation on a NVIDIA A6000 GPU with GDDR6 memory where System-Level ECC [error correcting code] was not enabled.”

Note the “not enabled”, because Nvidia’s advisory points out ECC is enabled by default in its Hopper and Blackwell Data Center products, and that many of its other products include ECC.

The company therefore recommended customers ensure System-Level ECC is enabled on many models ...