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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. hanno‏ @hanno Jan 4

      After the dust has settled can we please have a serious discussion how intransparency from actors like @intel is harming security? I mean... they ship microcode updates without changelogs. @tehjh + @anders_fogh had to guess how their processors work. They don't comment on ME.

      7 replies 87 retweets 128 likes
      Show this thread
    2.  🛄‏ @dzxi Jan 4
      Replying to @hanno @intel and

      maybe the market will force them into changing, or is that just wishful thinking?

      2 replies 0 retweets 0 likes
    3. hanno‏ @hanno Jan 4
      Replying to @dzxi @intel and

      I fear that's wishful thinking. There aren't any competitors that try to go down the "more transparency" route. And it's not just a CPU issue, that basically affects "all hardware". think about the broadpwn and wifi firmware mess etc.

      2 replies 0 retweets 5 likes
    4. Rich Felker‏ @RichFelker Jan 4
      Replying to @hanno @dzxi and

      For non-cpu case it mostly comes down to missing isolation. Who cares about wifi or baseband vulns if the chips are isolated & the network layer is untrusted?

      1 reply 1 retweet 8 likes
    5. hanno‏ @hanno Jan 4
      Replying to @RichFelker @dzxi and

      this is a good approach, yet my latest state on this was something like "ok, this chipset can do IOMMU, but for unclear reasons @Qualcomm has disabled it and they don't comment on it"

      2 replies 0 retweets 7 likes
    6. hanno‏ @hanno Jan 4
      Replying to @hanno @RichFelker and

      plus: the isolation depends on secure drivers without buffer overflows. and there we are again with the transparency issue and proprietary drivers without sourcecode...

      1 reply 0 retweets 5 likes
    7. Rich Felker‏ @RichFelker Jan 4
      Replying to @hanno @dzxi and

      Yes but now it's a sw issue not a hw one.

      1 reply 0 retweets 1 like
    8. Ferry Huberts‏ @fhuberts Jan 4
      Replying to @RichFelker @hanno and

      How about your WiFi chip being hijacked and used for nefarious things? Entirely possible with your OS knowing about it. Just saying

      1 reply 0 retweets 0 likes
    9. hanno‏ @hanno Jan 4
      Replying to @fhuberts @RichFelker and

      if your main system is properly isolated (by iommu or by using usb wifi) this doesn't matter a lot. the attacker can mess with wifi traffic, but there's tls to prevent that and you can't trust the network anyway.

      2 replies 0 retweets 2 likes
    10. Ferry Huberts‏ @fhuberts Jan 4
      Replying to @hanno @RichFelker and

      Except that it now is YOUR machine doing those things.

      1 reply 0 retweets 0 likes
      Rich Felker‏ @RichFelker Jan 4
      Replying to @fhuberts @hanno and

      Yes but it's largely indistinguishable from a separate malicious box that just spoofed your MAC address, which is always a possibility.

      11:52 AM - 4 Jan 2018
      • 1 Like
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      0 replies 0 retweets 1 like

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