Windows 10: Windows Client Guidance against speculative execution vulnerabilities

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  1. Cliff S's Avatar
    Posts : 21,213
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       07 Jan 2018 #80

    alphanumeric said: View Post
    Looks like I wasn't running the latest BIOS, just flashed to the latest but it didn't change anything as far as I can tell, still recommends getting a newer BIOS. Not sure what to do now?
    Attachment 171310
    Take a look here, and click "show more": Facts about Side-Channel Analysis and Intel Products
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  2. axe0's Avatar
    Posts : 13,603
    Windows 10 Pro
       07 Jan 2018 #81

    Is this a bug in Intel hardware or processor design?

    No. This is not a bug or a flaw in Intel products. These new exploits leverage data about the proper operation of processing techniques common to modern computing platforms, potentially compromising security even though a system is operating exactly as it is designed to. Based on the analysis to date, many types of computing devices — with many different vendors’ processors and operating systems — are susceptible to these exploits.
    Isn't software a part of the product?
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  3.    07 Jan 2018 #82

    clam1952 said: View Post
    SA-00086 is for the Intel management Engine flaw from last autumn / fall and is nothing to do with the current Spectre Meltdown flaws which is what you are checking with the Powershell scripts. Two separate issues, AMD is not affected by the Intel management flaw so does not require that fix, only applicable for Intel systems.

    The forthcoming hardware patches so far are for Intel processors only.
    For AMD the only "fix" at this point is the one included in the latest Windows update. As far as I'm aware AMD are not releasing any hardware patches yet and possibly do not need to? jury appears to be out on that at present.
    Windows update say's I'm fully up to date. Yeah, I knew what SA 00086 was for, just posting info on my checks. Might have confused things mentioning it though, like you say not relevant for AMD systems. I still trying to sort this all out in my head, so far all I'm getting is a head ache.
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  4.    07 Jan 2018 #83

    axe0 said: View Post
    Isn't software a part of the product?
    Not of CPU, only microcode and FW.
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  5.    07 Jan 2018 #84

    Cliff S said: View Post
    Take a look here, and click "show more": Facts about Side-Channel Analysis and Intel Products
    Ah OK, but what part specifically? That's all to do with Intel, My system is AMD CPU with NVidia chip-set. Thanks for the link, I will have a look see, nothings jumping out at me that makes any sense though?
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  6.    07 Jan 2018 #85

    I think that in the case of AMD based on what little they have said so far they are pretty much covered by the Microsoft patch, I also have an AMD Phenom II rig but with an AMD chipset not my main one though, last bios was years ago, actually I've never updated it, if it ain't broke.... I'm not going to worry about it.
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  7.    07 Jan 2018 #86

    Ok for me the power shell commands show

    BTI Hardware Preset :False
    BTI Windows Support Present :True
    BTI Windows Support Enabled :False
    BTI Disabled By No Hardware Support :True

    Can I take that to mean I'm safe because its not used, no hardware present?

    And same for KVA?

    KVA Shadow Pci Enabled : false

    At first glance I thought I was venerable, but taking a closer look I think I'm fine, assuming I interpreted what each true false line actually means?
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  8.    07 Jan 2018 #87

    That's as I'm reading it. Hopefully someone will come up with a better and easy to understand method of checking, well I can dream....
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  9. Cliff S's Avatar
    Posts : 21,213
    Win10 Pro, Win10 Pro N, Win10 Home, Win10 Pro Insider Fast Ring, Windows 8.1 Pro, Ubuntu
       07 Jan 2018 #88

    alphanumeric said: View Post
    Ah OK, but what part specifically? That's all to do with Intel, My system is AMD CPU with NVidia chip-set. Thanks for the link, I will have a look see, nothings jumping out at me that makes any sense though?
    An Update on AMD Processor Security | AMD
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  10. axe0's Avatar
    Posts : 13,603
    Windows 10 Pro
       07 Jan 2018 #89

    CountMike said: View Post
    Not of CPU, only microcode and FW.
    I know, but since the microcode is delivered by Intel...

    What is FW?
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