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Date: Wed, 5 Oct 2016 10:04:03 -0700
From: Tavis Ormandy <>
Subject: Re: CVE Request - multiple ghostscript -dSAFER sandbox problems

On Wed, Oct 5, 2016 at 9:54 AM, Tavis Ormandy <> wrote:
> On Wed, Oct 5, 2016 at 9:47 AM, Hanno Böck <> wrote:
>> On Wed, 5 Oct 2016 09:13:03 -0700
>> Tavis Ormandy <> wrote:
>>> If you're using ImageMagick, I would recommend disabling the PS, EPS,
>>> PDF and XPS coders in policy.xml. Applications like gimp, evince,
>>> claws, and most other applications that generate thumbnails of PDF/PS
>>> documents should probably not do so without a prompt (NOTE: A lot of
>>> packages do this
>> I was surprised to see evince in this list. It uses poppler for pdf and
>> libspectre for postscript, so there seems to be no use of
>> ghostscript (maybe in an older version).
>> Also for claws the only use of ghostscript is in a plugin that's not
>> enabled by default.
> It might be an old version but the version I have on RHEL7 and Ubuntu
> LTS both invoke gs by default.
> $ evince --version
> GNOME Document Viewer 3.14.2

Oops, I think I may be wrong about that, I just saw that some of my
test cases repro and assumed it was using ghostscript.

Maybe there are poppler issues as well, sigh.


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