rowhammer – Weekly Geek

Nvidia chips become the first GPUs to fall to Rowhammer bit-flip attacks

Nvidia is recommending a mitigation for customers of one of its GPU product lines that will degrade performance by up to 10 percent in a bid to protect users from exploits that could let hackers sabotage work projects and possibly cause other compromises. The move comes in response to an attack a team of academic… Read More: Nvidia chips become the first GPUs to fall to Rowhammer… »

There’s a new way to flip bits in DRAM, and it works against the latest defenses

reader comments 20 with In 2015, researchers reported a surprising discovery that stoked industry-wide security concerns—an attack called RowHammer that could corrupt, modify, or steal sensitive data when a simple user-level application repeatedly accessed certain regions of DDR memory chips. In the coming years, memory chipmakers scrambled to develop defenses that prevented the attack, mainly… Read More: There’s a new way to flip bits in DRAM, and… »