Intel Kernel Memory Leak

Discussion in 'Computing and Networks' started by Raymond Genovese, Jan 3, 2018.

  1. Raymond Genovese

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  2. nsaspook

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    The solution: Forcefully Unmap Complete Kernel With Interrupt Trampolines.
     
  3. Raymond Genovese

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    What I am reading is that several Linux patches have already been distributed. Windows users have to wait for the Second Tuesday Fix Up (STFU) ;)

    This has been going on for the last decade??

    Edit: I guess there are some standalone Windows patches out, but I can't find one for 7 only 10.
     
    Last edited: Jan 4, 2018
  4. joeyd999

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    Must you be so profane?
     
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  5. nsaspook

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  6. hrs

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    https://www.theregister.co.uk/2018/01/04/intel_amd_arm_cpu_vulnerability/

    Meltdown does not affect any AMD processors.

    AMD insists its processors are practically immune to Variant 2 Spectre attacks, which siphon data from the kernel. As for Variant 1, you'll have to wait for microcode updates or recompile your software with forthcoming countermeasures described in the technical paper on the Spectre website.
     
  7. Raymond Genovese

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  8. nsaspook

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    Google didn't investigate AMD or ARM for Meltdown so I hope so but practically immune to Variant 2 Spectre attacks is like being a little pregnant. Covert and Side Channels Due to Processor Architecture is old news but this makes it a reliable method (CPUs that do speculative execution) with Spectre.
    I mainly run Linux so the patches are already. I hope a microcode update will make the necessary kernel security hacks run faster.
     
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  9. nsaspook

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    Proof of concept code for the Spectre CPU exploit from the paper.
    SpectrePoC
    Reads the secret. "The Magic Words are Squeamish Ossifrage"

    [​IMG]
     
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  10. nsaspook

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    https://support.google.com/faqs/answer/7625886
     
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  11. Raymond Genovese

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    Interestingly, I just did a Windows (7) monthly update push. I thought that they came out on a 2nd Tue schedule? I wonder if this included patches - just says monthly security update.
     
  12. DbLoud120

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    You can check what the update is for under windows updates in settings. Click on view installed update history.. Double click a
    listed update and it will expand, showing what update was for.
     
  13. Raymond Genovese

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    Yep, thx. To be exact, you really need to then go look at what the KB number is for (a link is provide on the double click) - at least on my machine. BTW: It was NOT for the indications in the thread.
     
  14. BR-549

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    I put my windows update on pause for 30 days. I'll wait and see what people say about it.
     
  15. BR-549

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  16. joeyd999

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  17. BR-549

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    You wouldn't believe. I never had to re-install windows 7. About 2 weeks ago....after a few days of trouble shooting with MS techs........I was advised to clean, re-install windows 10 pro by MS.

    So I did. Didn't work. 3 times it didn't work. I had to un-install some updates......put update on pause....and stand by for MS to get back to me.

    They got back to me a few days ago....gave me a procedure.....it worked......back to normal.......then this Intel thing happens.

    I was hoping that after decades......re-installing windows was over.
     
  18. joeyd999

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    It is, for me.
     
  19. nsaspook

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  20. nsaspook

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    https://www.engadget.com/2018/01/10/nvidia-gpu-meltdown-and-spectre-patches/
    It's really just a patch for CPU related Spectre in drivers, not the GPU hardware (GPUs don't perform speculative execution).
    https://nvidia.custhelp.com/app/answers/detail/a_id/4611

    The new driver was just released on Debian 64 for my new server.
    [​IMG]
     
    Last edited: Jan 10, 2018
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