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Re: ghostscript double free and invalid read caused by embedded jbig2 data


From: Hanno Böck <hanno () hboeck de>
Date: Sat, 7 Feb 2015 18:33:47 +0100

On Sat, 07 Feb 2015 10:27:29 -0700
Kurt Seifried <kseifried () redhat com> wrote:

https://bugzilla.redhat.com/show_bug.cgi?id=570425

I'm pretty sure this issue is different than CVE-2009-0196

Ghostscript right now has ~180 open unfixed bugs from fuzzing:
http://bugs.ghostscript.com/buglist.cgi?component=fuzzing&query_format=advanced&resolution=---

I believe most of them are related to this fuzzing effort from 2013:
http://gynvael.coldwind.pl/?id=493
(I think Gynvael is on this list, maybe he can comment on the state)

gs already does invalid memory reads without any fuzzing at all. Just
compile it with asan and try to use the pdfwrite device.


-- 
Hanno Böck
http://hboeck.de/

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