Date: Wed, 5 Oct 2016 10:04:03 -0700 From: Tavis Ormandy <taviso@...gle.com> To: oss-security@...ts.openwall.com Subject: Re: CVE Request - multiple ghostscript -dSAFER sandbox problems On Wed, Oct 5, 2016 at 9:54 AM, Tavis Ormandy <taviso@...gle.com> wrote: > On Wed, Oct 5, 2016 at 9:47 AM, Hanno Böck <hanno@...eck.de> wrote: >> On Wed, 5 Oct 2016 09:13:03 -0700 >> Tavis Ormandy <taviso@...gle.com> 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. Tavis.
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