Chris Evans on Twitter: "Red alert? "tl;dr: there is presently an embargoed security bug impacting apparently all contemporary CPU architectures that implement virtual memory, requiring hardware changes to fully resolve.": https://t.co/uYsQeXNChq"

@scarybeasts

No longer semi retired! Head of Security @ Dropbox. Past: Founded {vsftpd, Chrome security, Google Project Zero}; Tesla. Also: HackerOne adviser, troll, tool.

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1. Rich Felker‏ @RichFelker Jan 1
  Replying to @scarybeasts
  
  Interesting alternative mitigation: 64-bit kernel with support for 64-bit user processes disabled, no way to address kernel mem from userspace.
  
  6 retweets 18 likes
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1. Ethan Fremen‏ @mindlace Jan 2
  Replying to @scarybeasts @encthenet
  
  It’s my understanding this does not apply to AMD CPU’s.
  
  2 retweets 4 likes
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1. raghava‏ @_raghava_ Jan 2
  Replying to @scarybeasts
  
  https://arstechnica.com/information-technology/2016/08/new-attack-steals-private-crypto-keys-by-corrupting-data-in-computer-memory/ … was a spoiler/trailer. :D
  
  1 retweet 4 likes
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1. zot‏ @zot3p Jan 1
  Replying to @scarybeasts
  
  Most appropriate use of tl;dr I've seen for a while. Thanks.
  
  5 likes
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1. Paul Lanzi‏ @planzi Jan 2
  Replying to @scarybeasts
  
  Surely it’s too early for April Fools, right?
  
  1 like
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1. Andrew Langstaff‏ @cowboycoder Jan 2
  Replying to @scarybeasts
  
  By 'all contemporary CPU' I think you mean all x86 compatible ones - ISTR some features added to ARM years back meant this wouldn't be possible...
  
  1 like
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1. Igor Podlesny‏ @poige Jan 2
  Replying to @scarybeasts
  
  https://lkml.org/lkml/2017/12/27/2 …
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1. ₳ᴆᴀᴍ‏ @nixhaxor Jan 1
  Replying to @scarybeasts
  
  Wow :)
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1. 𝙼𝙰𝚁𝙶𝙷𝙾𝚂𝚃‏ @marghost Jan 1
  Replying to @scarybeasts
  
  highly interesting, thanks!
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