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Date: Sat, 22 Nov 2014 21:15:21 +0100
From: Bastien ROUCARIES <roucaries.bastien@...il.com>
To: oss-security@...ts.openwall.com
Subject: Re: Stack smashing in libjpeg-turbo

On Thu, Nov 6, 2014 at 10:27 PM, Bastien ROUCARIES
<roucaries.bastien@...il.com> wrote:
> Hi,
>
> Passing special crafted jpeg file to imagemagick (convert -rotate 270
> 003632r270.jpg junk.jpg) could lead to stack smashing in libjpeg.so.62
> (libjpeg-turbo).
>
> This bug is triggered  by setting the optimize coding member of the
> JPEG initialization structure to TRUE. If this flag set it to FALSE,
> ImageMagick completes without complaint.
>
> Wokarround could consist to turn off compression optimization in
> imagemagick to prevent the stack smash.
>
> Please assing me CVE and make a cc to  768369@...s.debian.org.

We get a reduced test case that does not need imagemagick. The bug lie
in libjpeg-turbo. Upstream is investigating

>
> Bastien

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