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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
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      • Report NetzDG Violation

      About time someone looked at AMD's "security". https://amdflaws.com  FUD warning though: this isn't some "everyone with an AMD is doomed" scenario. This mostly affects those depending on advanced security features, stuff like fTPM (which was always suspect IMO).

      8 replies 7 retweets 25 likes
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    2. nanaya‏ @nanayapro 13 Mar 2018
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      Replying to @marcan42

      this page says they all require admin privilege, so... (>'_')> https://www.anandtech.com/show/12525/security-researchers-publish-ryzen-flaws-gave-amd-24-hours-to-respond …

      1 reply 0 retweets 2 likes
    3. Hector Martin‏ @marcan42 13 Mar 2018
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      Replying to @nanayapro

      Exactly. This is just compromising higher-than admin privileges tiers. For consumers... That means you can use it to break DRM. And maybe BitLocker.

      0 replies 0 retweets 4 likes
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    5. Hector Martin‏ @marcan42 13 Mar 2018
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      Well, secure boot is supposed to have a built in root of trust these days so you can't just take over. That's what this bypasses. But for a lot of people this just means being able to take control over their own hardware. And there are so many other attack vectors for secure boot

      0 replies 0 retweets 0 likes
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    8. Hector Martin‏ @marcan42 13 Mar 2018
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      Pretty much. I reckon the highest impact this will have is BitLocker bypass if you depend on secure boot (the mode where there's no boot time passphrase screen, just the regular login dialog - which was never a good idea).

      0 replies 0 retweets 0 likes
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      Hector Martin‏ @marcan42 13 Mar 2018
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      Technically you can do that with LUKS too (it takes some effort though). It's better than nothing (if you can't afford a boot time password), but you have to take the added security with a huge grain of salt.

      10:33 AM - 13 Mar 2018
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