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Date: Mon, 17 Aug 2015 11:02:39 +0200
From: Raphael Geissert <>
To: Open Source Security <>
Subject: Re: Double free corruption in JasPer JPEG-2000
 implementation (CVE-2015-5203)


On 16 August 2015 at 20:48, mancha <> wrote:
> On Sun, Aug 16, 2015 at 05:22:50PM +0200, Gustavo Grieco wrote:
>> A new double free affecting JasPer JPEG-2000 (libjasper 1.900) has
>> been found triggered by function jasper_image_stop_load.  Despite this
>> library is used by many programs (
>>, there is no one
>> providing support, so there is no fix so far.
> If you email me your crasher I can look into a fix.

Last time I ran zzuf on jasper there were plenty of crashes and bugs
that triggered a high resource consumption - pretty much like the ones
I found on openjpeg at work. They looked less severe, however.

I should still have some samples in another machine, if anyone is
interested in taking a look at those and/or using them as a base for
further fuzzing.

Raphael Geissert - Debian Developer -

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