ETH Zurich researchers discover new security vulnerability in Intel processors
ethz.ch
Computer scientists at ETH Zurich discover new class of vulnerabilities in Intel processors, allowing them to break down barriers between different users of a processor using carefully crafted instruction sequences. Entire processor memory can be read by employing quick, repeated attacks.
  • The new class of vulnerabilities in Intel processors arises from speculative technologies that anticipate individual computing steps.
  • Openings enable gradual reading of entire privilege memory contents of shared processor (CPU).
  • All Intel processors from the last 6 years are affected, from PCs to servers in data centres.
  • Cocodapuf@lemmy.worldEnglish
    172·
    13 hours ago

    This sounds just like Spectre/heartbleed. Haven’t we learned our lesson with speculative computation? I guess not…

    Well you know what they say, if it was a bad idea 10 fucking years ago, then let’s do it again!

  • Domi@lemmy.secnd.meEnglish
    531·
    1 day ago

    Intel has already deployed a fix for this in the 13th and 14th gen by permanently damaging the chip and crashing. Checkmate hackers.

  • boreengreen@lemm.eeEnglish
    29·
    1 day ago

    This vulnerability fundamentally undermines data security, particularly in the cloud environment where many users share the same hardware resources.

    Intel gets punched again.

    • msage@programming.devEnglish
      41·
      10 hours ago

      Who, my good friend, fucking WHO still buys Intel for the servers? It sucks so hard, I don’t get it.

      • Cocodapuf@lemmy.worldEnglish
        1·
        4 hours ago

        Well personally, I’ve been having a bear of a time trying to get my Ryzen machine to run correctly. I’m starting to think there just aren’t good options

        • msage@programming.devEnglish
          4·
          2 hours ago

          I’ve had numerous Ryzens, with 0 issues.

          Fewer Epics, but no issues either.

          What issues are you having?

          • Cocodapuf@lemmy.worldEnglish
            2·
            41 minutes ago

            Frequent crashing/freezing, especially at idle. Once the processor is under heavier load it’s fine, it’ll keep going smooth for hours. but at lower energy states the CPU is super unstable. It often takes me about a half hour just to get the thing up and running steady, very frustrating. Sometimes it likes to crash right as it’s changing load levels/c-State, so just as it finishes loading files for a game just as the first 3d frame is rendered. Or vice versa, it’ll crash about 15 seconds after the computer returns to mostly idle when you exit an application.

            I’ve tried a bunch of things, disabling c-states, manually setting dram timings, manually increasing power to various parts, enabling/disabling just about every relevant feature I can find. And of course looking for help online. I’m actually pretty sure the problem is in the motherboard, as one of the “fixes” I tried was going from a Ryzen 3600 to a 3800X, and the problem was the same.

            I’ve looked around and it’s an issue I have seen other people having, though it’s not very common. But there’s no consensus in the root of the problem. It does seem to be that it’s some interaction between the motherboard and cpu. It could plausibly be the power supply, but I think that’s pretty unlikely. The ram is fine.