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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. Thomas H. Ptacek‏ @tqbf May 14

      I’m reading the man page and looking for the place where GPG instructs users not to render plaintext if an MDC isn’t present on a message. Can someone help me find it?

      4 replies 3 retweets 27 likes
    2. Tavis Ormandy‏Verified account @taviso May 14
      Replying to @tqbf

      Hmm, I think I'm on team client bugs. I know about gpg message modification, and have found attacks before (e.g. CVE-2006-0049). If client is not waiting for the DECRYPTION_OKAY status-fd message, that seems clearly client bug to me?

      3 replies 3 retweets 16 likes
    3. Thomas H. Ptacek‏ @tqbf May 14
      Replying to @taviso

      Everybody who works in cryptography vulnerabilities is just sort of staring at you slack-jawed. Don’t provide unauthenticated plaintext to callers.

      2 replies 2 retweets 10 likes
    4. Rich Felker‏ @RichFelker May 14
      Replying to @tqbf @taviso

      "Don't provide code execution, network access, and read access to private data to third parties" is a lot more fundamental.

      1 reply 0 retweets 0 likes
    5. Rich Felker‏ @RichFelker May 14
      Replying to @RichFelker @tqbf @taviso

      There are almost surely vulnerabilities using these same underlying HTML+DOM+JS crapware layer *design flaws* in HTML email clients that have nothing to do with crypto.

      2 replies 0 retweets 0 likes
    6. Thomas H. Ptacek‏ @tqbf May 14
      Replying to @RichFelker @taviso

      Find them and report them.

      1 reply 0 retweets 0 likes
      Rich Felker‏ @RichFelker May 14
      Replying to @tqbf @taviso

      I'd rather just throw out ideas and let someone with interest find and publicize them. To me, the whole architecture is a design flaw and the right solution is "don't use HTML+DOM+JS-based mail clients, instead strip HTML mail down to plain text with dumb filters".

      11:48 AM - 14 May 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Thomas H. Ptacek‏ @tqbf May 14
          Replying to @RichFelker @taviso

          I think the 1,000 Angriest Unix Sysops Brigade has opinions about HTML email that differ starkly from the other 7.6 billion people in the world.

          1 reply 0 retweets 0 likes
        3. Rich Felker‏ @RichFelker May 14
          Replying to @tqbf @taviso

          It's just a matter of knowledge. If you sat down a random sample of those 7.6 billion and explained the privacy & safety implications of badly-designed HTML mail, something like 75-95% would be quite unhappy.

          0 replies 0 retweets 0 likes
        4. End of conversation

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