AMD CPUs are vulnerable to a severe new side-channel attack
Posted: Tue Mar 10, 2020 12:16 pmAMD CPUs are vulnerable to a severe new side-channel attack
Cutting corners: All AMD processors released since 2013 are vulnerable to a pair of new side-channel attacks, "Collide + Probe" and "Load + Reload." Both exploit weaknesses in AMD’s L1D cache way predictor, a tool that predicts where data is stored in the processor, to detect when that data is accessed. By combining the new exploits with existing methodologies, researchers from the Graz University of Technology were able to crack open all the secrets of AMD processors in labs and real-world servers.
Processors run a lot of software concurrently and essential to systems' security is keeping programs separate so that one can't see what the other is doing, but new research into AMD’s processors has uncovered flaws that allow data to be shared between programs running on the same core.
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Cutting corners: All AMD processors released since 2013 are vulnerable to a pair of new side-channel attacks, "Collide + Probe" and "Load + Reload." Both exploit weaknesses in AMD’s L1D cache way predictor, a tool that predicts where data is stored in the processor, to detect when that data is accessed. By combining the new exploits with existing methodologies, researchers from the Graz University of Technology were able to crack open all the secrets of AMD processors in labs and real-world servers.
Processors run a lot of software concurrently and essential to systems' security is keeping programs separate so that one can't see what the other is doing, but new research into AMD’s processors has uncovered flaws that allow data to be shared between programs running on the same core.
More/Source...