oss-sec mailing list archives
Re: CVE Request - multiple ghostscript -dSAFER sandbox problems
From: Tavis Ormandy <taviso () google com>
Date: Wed, 5 Oct 2016 10:09:07 -0700
On Wed, Oct 5, 2016 at 10:04 AM, Tavis Ormandy <taviso () google com> wrote:
On Wed, Oct 5, 2016 at 9:54 AM, Tavis Ormandy <taviso () google com> wrote:On Wed, Oct 5, 2016 at 9:47 AM, Hanno Böck <hanno () hboeck de> wrote:On Wed, 5 Oct 2016 09:13:03 -0700 Tavis Ormandy <taviso () google 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 thisI 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 3.14.2Oops, 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.
Ahh, no, I was right - it's using libgs, and the same issues apply there. Tavis.
Current thread:
- CVE Request - multiple ghostscript -dSAFER sandbox problems Tavis Ormandy (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Hanno Böck (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Tavis Ormandy (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Tavis Ormandy (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Tavis Ormandy (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Hanno Böck (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Tavis Ormandy (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Hanno Böck (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Bob Friesenhahn (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Hanno Böck (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Jakub Wilk (Oct 05)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Florian Weimer (Oct 05)
- Re: Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Cedric Buissart (Oct 19)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems Tavis Ormandy (Oct 11)
- Re: CVE Request - multiple ghostscript -dSAFER sandbox problems cve-assign (Oct 11)