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Date: Mon, 17 Oct 2016 01:02:45 +0200
From: Hanno Böck <>
To: Graham Christensen <>
Subject: Re: Re: Fuzzing jasper


On Sun, 16 Oct 2016 10:23:43 +0000
Graham Christensen <> wrote:

> For what it is worth, Jasper has recently issued a release fixing many
> CVEs, and would likely appreciate these fussing results as bug
> reports on their github project:

I tested the code again with afl (after the fixes for the stuff
Agostino reported) and it immediately found multiple issues:
Heap overflow in jpc_dec_cp_setfromcox()
Heap overflow in jpc_getuint16()
segfault / null pointer access in jpc_pi_destroy
double free on jpeg parsing
assert in jpc_dec_tiledecode()

This will need some work till it's fuzzing resistant.

Hanno Böck

GPG: FE73757FA60E4E21B937579FA5880072BBB51E42

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