Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

Tweets

Patrick Walton

@pcwalton

Research engineer at Mozilla

San Francisco, CA
pcwalton.github.io
Joined November 2009

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Rich Felker‏ @RichFelker 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @DanielMicay @filpizlo and

      That claim sounds implausible - the memory usage patterns should not be a function of untrusted input.

      1 reply 0 retweets 0 likes
    2. DanielMicay‏ @DanielMicay 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @RichFelker @filpizlo and

      SQLite still has memory corruption bugs. A subset of those are vulnerabilities. I can link to some of the recent ones, but I don't feel that's necessary. I don't see how it's implausible that C code is still going to have edge cases not totally handled leading to mem corruption.

      1 reply 0 retweets 0 likes
    3. Rich Felker‏ @RichFelker 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @DanielMicay @filpizlo and

      I think it sounds more plausible that someone thought "you feed a corrupt sqlite db file to it" is a CVE, when accepting untrusted db files is not the intended usage.

      1 reply 0 retweets 0 likes
    4. DanielMicay‏ @DanielMicay 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @RichFelker @filpizlo and

      That is the intended usage of SQLite. That's part of the threat model for it in the real world and it certainly aims to be safe in that case. It's also supposed to remain memory safe with a lot of attacker control over the database queries.

      1 reply 0 retweets 1 like
    5. DanielMicay‏ @DanielMicay 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @vyodaiken @RichFelker and

      I didn't say running untrusted SQL. I said "a lot of attacker control over the database queries". If I meant executing arbitrary SQL, that's what I would have said, and I clearly didn't mean that. Please don't misrepresent my statements any more.

      1 reply 0 retweets 1 like
    6. DanielMicay‏ @DanielMicay 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @DanielMicay @vyodaiken and

      https://www.sqlite.org/whentouse.html  > SQLite does not compete with client/server databases. SQLite competes with fopen(). #2 on list of recommend uses > Application file format Also listed: > Data transfer format And yes, it is widely used this way in the real world, as intended.

      1 reply 0 retweets 1 like
    7. Rich Felker‏ @RichFelker 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @DanielMicay @vyodaiken and

      I believe you. This is a highly irresponsible recommendation, both from a security perspective and a design one, and ppl should ignore it.

      0 replies 0 retweets 0 likes
    8. DanielMicay‏ @DanielMicay 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @vyodaiken @RichFelker and

      Consider something like the XCF file format used by a program like GIMP including all kinds of fancy structured data. People are certainly exchanging these files. SQLite would be a substantially safer base to build on than the current GIMP implementation. I'm quite sure of that.

      2 replies 0 retweets 0 likes
      Patrick Walton‏ @pcwalton 17 Apr 2019
      • Report Tweet
      • Report NetzDG Violation
      Replying to @DanielMicay @vyodaiken and

      Or heck, .doc or .psd, which are basically just memcpy’d internal structures of Word and Photoshop respectively.

      6:30 PM - 17 Apr 2019
      1 reply 0 retweets 0 likes
        1. New conversation
        2. DanielMicay‏ @DanielMicay 17 Apr 2019
          • Report Tweet
          • Report NetzDG Violation
          Replying to @pcwalton @vyodaiken and

          That's basically XCF too. https://github.com/GNOME/gimp/blob/master/devel-docs/xcf.txt … They're collaborating with the Krita developers to make https://en.wikipedia.org/wiki/OpenRaster  as a replacement. It's probably going to be even more complex though since they're going to want to add more capabilities.

          1 reply 0 retweets 2 likes
        3. DanielMicay‏ @DanielMicay 17 Apr 2019
          • Report Tweet
          • Report NetzDG Violation
          Replying to @DanielMicay @pcwalton and

          The solution to the problem cannot be not making this kind of software, or somehow getting users not to exchange media files, image editing files, word processor documents, etc. Really just parse the file format in a memory safe language without dynamic code execution.

          1 reply 0 retweets 5 likes
        4. 16 more replies

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2020 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info