GPUBreach: Exploiting Bitflips in Nvidia GPUs for System Control (heise.de)

• Privilege escalation via GPU memory manipulation
• Rowhammer attacks bypass standard software protections
• Critical implications for multi-tenant cloud environments

"The 'GPUBreach' vulnerability highlights a critical security flaw in Nvidia GPUs where Rowhammer-style attacks trigger bitflips in video memory. Researchers have proven these bitflips can be weaponized to achieve privilege escalation, granting an attacker root access to the host system. This vulnerability undermines the security boundaries of shared computing environments, posing significant risks to cloud infrastructure and high-performance computing clusters. It underscores the urgency of implementing hardware-level mitigations to prevent transient execution and memory-based exploits in data center hardware."