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Date: Sun, 9 Sep 2018 12:26:01 -0700
From: Tavis Ormandy <>
Subject: Re: Ghostscript 9.24 issues

On Sat, Sep 8, 2018 at 3:42 AM Marius Bakke <> wrote:

> Tavis Ormandy <> writes:
> > Quick update, this
> > <>
> > commit fixes that problem, but I noticed that fix is incomplete and can
> be
> > bypassed, so filed another bug for that (the new bug is 699718).
> I see <>
> is now closed.  As far as I can tell, these are the (only) commits
> necessary on top of 9.24[*]:
> Which are all variations of CVE-2018-16509.  Is my understanding correct?
Yes, I think that's enough for all the issues I reported. There are some
more security commits in git (like this one
that are not from me though. That one in particular seems like a good idea,
errordict is like window.onerror in PostScript, a top-level exception
handler. It's hard to believe there are many legitimate untrusted documents
using complex exception handling logic ¯\_(ツ)_/¯

> Many thanks to Tavis and P0 for finding these and keeping us in the
> loop!
> [*] You'll also need this to make 2&3 apply:

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