GNU bug report logs - #28350
CVE-2017-14482: enriched.el code execution

Previous Next

Full log

Message #24 received at 28350 <at> debbugs.gnu.org (full text, mbox):

From: charles <at> aurox.ch (Charles A. Roelli)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 28350 <at> debbugs.gnu.org
Subject: Re: bug#28350: enriched.el code execution
Date: Sat, 09 Sep 2017 14:23:54 +0200

[Message part 1 (text/plain, inline)]

> Date: Thu, 07 Sep 2017 05:34:34 +0300
> From: Eli Zaretskii <eliz <at> gnu.org>
> CC: 28350 <at> debbugs.gnu.org
> 
> > Date: Wed, 06 Sep 2017 21:25:18 +0200
> > From: charles <at> aurox.ch (Charles A. Roelli)
> > 
> > As for a fix to apply to master: I'd like to keep "x-display" if we
> > can agree on some "safe" predicate that the given parameter would have
> > to satisfy.  Looking at the list of display specifications that are
> > available, it seems that simple string, margin text, space-width,
> > height (only in the (+ n), (- n) and n cases) and raise specifications
> > should be okay.  Does anybody else have an opinion about this?
> 
> I agree that the cases you have shown are safe.
> 
> Thanks.

Thank you.  Does the attached patch look OK?  I've used the file
enriched-test-safe-props.txt (also attached) to test that safe
properties are still applied.

[0001-Prevent-code-execution-by-text-enriched-files-Bug-28.patch (text/x-patch, attachment)]

[enriched-test-safe-props.txt (text/enriched, attachment)]

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.