Vulnerability Researcher. Tweets are my own.

Joined January 2013
11 Photos and videos
Jason Kratzer retweeted
The recording of my talk "The Human Component in Bug Finding" at #FuzzConEurope2020 is now available: youtube.com/watch?v=ifc2C5fL… Deploying #fuzzing in your company? Then this might be relevant to you. Thanks to @CI_GmbH for organizing the conference!

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19 Nov 2019
Verifying myself: I am jkratzer on Keybase.io. 9AF2vCvteY-MY81f7jIJ-bGfd0D9g5Ep-CLy / keybase.io/jkratzer/sigs/9AF…

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Jason Kratzer retweeted
This is a good read for everyone in security, in particular (but not only) for researchers. The result is both shocking and educational. Thanks to my friends at @CISPA for doing this highly valuable work. #fuzzing #security #research #validation
What is it that makes modern fuzzers successful? (Hint: It might not be what you think, and this raises questions.) andreas-zeller.blogspot.com/…
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Jason Kratzer retweeted
13 Jun 2019
A Windows kernel bug (DirectX) I discovered was fixed in the latest MS patches. Found via a custom fuzzer-pretty small and simple. Just targeted at very specific parts of the code portal.msrc.microsoft.com/en…

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Jason Kratzer retweeted
Fun with the new 3D printer, duplicating key from picture (or, what happens if you give decoder free time😇) youtube.com/watch?v=kUD_7p7u…
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Jason Kratzer retweeted
14 Nov 2017
We couldn't be more excited to see the first major @rustlang components from Servo landing alongside all the other great work in @firefox #Quantum! Enjoy the new CSS styling and other improvments - next up, #WebRender. "Steal" all the things! x.com/firefox/status/9304351…

14 Nov 2017
Close to 7 million lines of changed code later and we present the BRAND NEW FIREFOX. Fast, fierce & for good. mzl.la/2jolNon
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Jason Kratzer retweeted
14 Nov 2017
Close to 7 million lines of changed code later and we present the BRAND NEW FIREFOX. Fast, fierce & for good. mzl.la/2jolNon

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Jason Kratzer retweeted
6 Nov 2017
Our pacsec 2017 slides<<From Out of Memory to Remote Code Execution>> speakerdeck.com/yukichen/fro…

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Can someone please explain #trevorforget? You know... for a friend of mine.
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Jason Kratzer retweeted
Everything you've always wanted to know about Browser Security, now in one white paper from @X41Sec! blog.skylined.nl/20170919001…
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Jason Kratzer retweeted
30 Aug 2017
#CCS17 paper HexType: Efficient Detection of Type Confusion Errors for C is out. Also, supporting Firefox is hard nebelwelt.net/publications/f…

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Jason Kratzer retweeted
I found the best bug to exploit ever: c1* o = new c1(a1) ((c2*)o)->m(a2) where a1&2, c1&2 and m are all attacker controlled. seriously.
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