Rowhammer Attack On NVIDIA GPUs With GDDR6 DRAM (University of Toronto)


A new technical paper titled "GPUHammer: Rowhammer Attacks on GPU Memories are Practical" was published by researchers at University of Toronto. Abstract: "Rowhammer is a read disturbance vulnerability in modern DRAM that causes bit-flips, compromising security and reliability. While extensively studied on Intel and AMD CPUs with DDR and LPDDR memories, its impact on GPUs using GDDR memorie... » read more

Top Tech Videos Of 2024


In 2024, hot topics included challenges involving chiplets and heterogeneous integration, AI, data management, MCUs, power semis, software-defined vehicles, sensors, adaptive test, yield tracking, safety monitoring, security, and much more. Top 5 most watched videos in 2024: Overlay Optimization In Advanced IC Substrates How To Stop Row Hammer Attacks What’s Changing In DRAM ... » read more

How To Stop Row Hammer Attacks


Row hammer is a well-publicized target for cyberattacks on DRAM, and there have been attempts to stop these attacks in DDR4 and DDR5, but with mixed results. The problem is that as density increases, distance decreases, making it more likely that flipped bit cell in one row can disturb a bit cell in another, and that bits flipped across an entire row can flip another row. Steven Woo, fellow and... » read more

Quantifying Rowhammer Vulnerability for DRAM Security


Abstract: "Rowhammer is a memory-based attack that leverages capacitive-coupling to induce faults in modern dynamic random-access memory (DRAM). Over the last decade, a significant number of Rowhammer attacks have been presented to reveal that it is a severe security issue capable of causing privilege escalations, launching distributed denial-of-service (DDoS) attacks, and even runtime attack ... » read more