ROWHAMMER ATTACK DEMONSTRATED AGAINST NVIDIA GPU

Summary from the TLDR InfoSec newsletter

A group of researchers from the University of Toronto demonstrated that the Rowhammer attack method can be applied to GPUs in an attack they dubbed GPUHammer. Rowhammer attacks involve repeatedly accessing (“hammering”) a DRAM row, leading to electrical interference that causes bit flips in adjacent memory regions. The researchers have demonstrated that GPUHammer attacks can reduce the accuracy of ML models from 80% to 0.1%.