Date: Mon, 17 Nov 2014 00:10:47 +0100 From: Robert Święcki <robert@...ecki.net> To: oss-security@...ts.openwall.com Subject: Re: Fuzzing findings (and maybe CVE requests) - Image/GraphicsMagick, elfutils, GIMP, gdk-pixbuf, file, ndisasm, less 2014-11-16 21:43 GMT+01:00 Michal Zalewski <lcamtuf@...edump.cx>: >> However, even if tools like file/ndisasm/gimp/readelf can be used by >> many (w/o strong system isolation boundaries) to analyze untrusted >> inputs (for reverse engineering, malware analysis and similar >> purposes) - I'd simply put a blame on those users > > Well, it's always the easy option, but keep in mind that there are > countless tutorials that tell people to use 'file' or 'strings' to > examine sketchy file, or use tools such as objdump to do hobby > forensics. > > We can blame the authors of the tutorials - but it goes back to a > fairly fundamental problem: the use cases aren't completely crazy > (nothing *fundamentally* wrong in using 'strings' on a file you don't > trust, right?), and their unsafe design is a fairly counterintuitive > property to laypeople and many experts alike [*]. > > So, for high-profile tools used in ways that are sort of plausible and > probably common, we may just need to try & make them robust. Agreed. > (But of > course, I'd be pragmatic in drawing the line: the Mayhem fuzzing thing > went completely overboard.) -- Robert Święcki
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