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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 13 Mar 2018
      • Report Tweet
      • Report NetzDG Violation

      Okay, I should've shouted this earlier. THE AMD VULNERABILITIES THAT JUST CAME OUT HAVE NOTHING WHATSO-FUCKING-EVER TO DO WITH MELTDOWN/SPECTRE IN SCOPE, DANGER, OR APPLICABILITY. ANY COMPARISONS DEMONSTRATE A COMPLETE LACK OF UNDERSTANDING AND A FAILURE AT TECH JOURNALISM.

      8 replies 68 retweets 143 likes
      Show this thread
    2. Saleem Rashid‏ @saleemrash1d 13 Mar 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @marcan42 @karel_3d

      They're not Spectre/Meltdown bad, but they're still bad. Defeats the purpose of Secure Boot, for a start.

      1 reply 0 retweets 1 like
    3. Hector Martin‏ @marcan42 13 Mar 2018
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      Replying to @saleemrash1d @spudowiar @karel_3d

      You mean like the other over 9000 ways you can break secure boot on x86?

      1 reply 1 retweet 8 likes
    4. Saleem Rashid‏ @saleemrash1d 13 Mar 2018
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      Replying to @marcan42 @karel_3d

      I'm not aware of practical attacks against Secure Boot itself (i.e. not Microsoft-only attacks) but I'm open to hearing more about these attacks

      1 reply 0 retweets 0 likes
    5. Saleem Rashid‏ @saleemrash1d 13 Mar 2018
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      Replying to @saleemrash1d @marcan42 @karel_3d

      Also, how persistent are the AMD attacks? If, like the Intel ME attacks, you cannot reasonably recover without resorting to flashing over SPI (or worse!), then that's pretty major.

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 13 Mar 2018
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      Replying to @saleemrash1d @spudowiar @karel_3d

      No, it's not pretty major. It's what has been the status quo since the advent of Flash memory until secure boot started pretending like it totally fixed this problem (when it didn't). How do you break secure boot? Just audit a BIOS. Find a bug. Any bug. There are loads.

      1:30 PM - 13 Mar 2018
      • 13 Likes
      • Shaped like a Friend? Miguel Castillo philippe bézard Sellerie Boomba Ed Maste Doctor Danger Thomas Daede
      0 replies 0 retweets 13 likes

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