The cost of high-performance GPUs, typically $8,000 or more, means they are frequently shared among dozens of users in cloud environments. Three new attacks demonstrate how a malicious user can gain full root control of a host machine by performing novel Rowhammer attacks on high-performance GPU cards made by Nvidia.
The attacks exploit memory hardware’s increasing susceptibility to bit flips, in ...
The strongest version of this narrative highlights a critical evolution in cybersecurity threats: Rowhammer attacks, once confined to CPU DRAM, have now been adapted to exploit high-performance GPUs, with potentially devastating consequences. The research demonstrates that even advanced memory protections are not foolproof, particularly when default configurations (like disabled IOMMU) leave systems vulnerable. This narrative gains credibility from the decade-long progression of Rowhammer techni...