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Message-ID: <CALx_OUDMcAEj=vTjPr8FGBhAeeaY1hYEbHrJ5PSanRrVdHCJHA@mail.gmail.com>
Date: Fri, 7 Nov 2014 08:54:21 -0800
From: Michal Zalewski <lcamtuf@...edump.cx>
To: oss-security <oss-security@...ts.openwall.com>
Subject: Re: Re: Fuzzing objdump (PR 17512) and readelf (PR 17531)
> I am currently playing a lot with this. afl is in a somewhat
> experimental state and you'll run into more problems trying to get it
> running, but if it runs it is much more convenient than zzuf.
The current versions should be pretty stable, but if you bump into any
problems, please just poke me!=)
Afl is kind of cool for tools like binutils or fileutils because it
can synthesize many formats or format variations on its own, e.g.:
http://lcamtuf.blogspot.com/2014/11/pulling-jpegs-out-of-thin-air.html
But yeah, there's plenty of low-hanging fruit in libbfd right now, so
non-instrumented fuzzing will get you pretty damn far, too.
/mz
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