• Hyper-Threading & ZombieLoad CPU exploit

    • This topic has 3 replies, 4 voices, and was last updated 6 years ago.
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    #1629247

    Evidently the researchers that discovered the “Zombieland” side channel problem suggested turning off Hyper Threading in the affected Intel CPU’s but Intel isn’t pushing for it. Another reason I’m glad I went with AMD for my latest build, since it isn’t affected.

    https://www.pcworld.com/article/3395439/intel-hyper-threading-zombieload-cpu-exploit.html

    The easiest fix, the ZombieLoad discoverers said in a document detailing the exploit, is to turn off Hyper-Threading on Intel processors:

    “As ZombieLoad leaks loaded values across logical cores, a straightforward mitigation is disabling the use of Hyper-Threading. Hyper-Threading improves performance for certain workloads by 30 percent to 40 percent.”

    But Intel said that’s not necessarily the only answer for all PC users. In fact, Intel said that it’s really up to each customer to decide what to do. If software cannot be guaranteed to be trusted then yes, maybe you’ll want to disable Hyper-Threading. If your software only comes from the Microsoft Store or your IT department, you could probably leave Hyper-Threading on. For all others, it really depends on how squeamish you are.

    “Because these factors will vary considerably by customer, Intel is not recommending that Intel HT be disabled, and it’s important to understand that doing so does not alone provide protection against MDS,” Intel said in a statement.

    Don't take yourself so seriously, no one else does 🙂
    All W10 Pro at 22H2,(2 Desktops, 1 Laptop).

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