From mboxrd@z Thu Jan 1 00:00:00 1970 From: Didier Link Subject: Re: ghostscript vulnerabilities Date: Sun, 16 Oct 2016 11:16:44 +0200 Message-ID: References: <87insx37ss.fsf@gmail.com> <87mvi9l17x.fsf@gnu.org> <87a8e6jc6q.fsf@netris.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="xDCbhA718IPxKSsTJXM7I4gM4h8xDWpqm" Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:54271) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bvhZ0-0000LU-Vt for guix-devel@gnu.org; Sun, 16 Oct 2016 05:17:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bvhYz-0000vK-PN for guix-devel@gnu.org; Sun, 16 Oct 2016 05:17:02 -0400 In-Reply-To: <87a8e6jc6q.fsf@netris.org> List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Mark H Weaver , =?UTF-8?Q?Ludovic_Court=c3=a8s?= Cc: didier@famille-link.fr, guix-devel@gnu.org, bug-ghostscript@gnu.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --xDCbhA718IPxKSsTJXM7I4gM4h8xDWpqm Content-Type: multipart/mixed; boundary="ws44giSFH3wAfhu4HsjITiiRCBbJ1U8WU" From: Didier Link To: Mark H Weaver , =?UTF-8?Q?Ludovic_Court=c3=a8s?= Cc: bug-ghostscript@gnu.org, didier@famille-link.fr, guix-devel@gnu.org Message-ID: Subject: Re: ghostscript vulnerabilities References: <87insx37ss.fsf@gmail.com> <87mvi9l17x.fsf@gnu.org> <87a8e6jc6q.fsf@netris.org> In-Reply-To: <87a8e6jc6q.fsf@netris.org> --ws44giSFH3wAfhu4HsjITiiRCBbJ1U8WU Content-Type: multipart/alternative; boundary="------------ED9478D3860690CE1DCD96E6" This is a multi-part message in MIME format. --------------ED9478D3860690CE1DCD96E6 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello all I will review the Mark's patches and apply them for a security release next week. Thanks for your help ! Best regards Didier Le 15/10/2016 =C3=A0 09:36, Mark H Weaver a =C3=A9crit : > ludo@gnu.org (Ludovic Court=C3=A8s) writes: > >> Hello Didier and all, >> >> We are wondering about the applicability to GNU Ghostscript of the >> recent vulnerabilities discovered in AGPL Ghostscript: >> >> Alex Vong skribis: >> >>> Salvatore Bonaccorso writes: >>> >>>> --------------------------------------------------------------------= ----- >>>> Debian Security Advisory DSA-3691-1 security@debia= n.org >>>> https://www.debian.org/security/ Salvatore Bonac= corso >>>> October 12, 2016 https://www.debian.org/securit= y/faq >>>> --------------------------------------------------------------------= ----- >>>> >>>> Package : ghostscript >>>> CVE ID : CVE-2013-5653 CVE-2016-7976 CVE-2016-7977 CVE-2016-= 7978=20 >>>> CVE-2016-7979 CVE-2016-8602 >>>> Debian Bug : 839118 839260 839841 839845 839846 840451 >>>> >>>> Several vulnerabilities were discovered in Ghostscript, the GPL >>>> PostScript/PDF interpreter, which may lead to the execution of arbit= rary >>>> code or information disclosure if a specially crafted Postscript fil= e is >>>> processed. >> [...] >> >>> I've checked just now. GNU Ghostscript is also affected at least by >>> CVE-2016-8602. Looking at the patch in this bug report[0] and the >>> source[1], one can see that the vulnerable lines are present in GNU >>> Ghostscript. What should we do now? >>> >>> [0]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D840451 >>> [1]: http://git.savannah.gnu.org/cgit/ghostscript.git/tree/psi/zht2.c= >> WDYT? Perhaps a new release incorporating the fixes is in order? > FYI, I ported the upstream patches to GNU ghostscript for GNU Guix. > You can find them here: > > http://git.savannah.gnu.org/cgit/guix.git/commit/?id=3D1de17a648fa631f0= 074d315bfff0716220ce4880 > > Mark --------------ED9478D3860690CE1DCD96E6 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

Hello all

I will review the Mark's patches and apply them for a security release next week.

Thanks for your help !

Best regards

Didier


Le 15/10/2016 =C3=A0 09:36, Mark H Weaver a =C3=A9crit=C2=A0:
ludo@gnu.org (Ludovic Court=C3=A8s) writes:


Hello Didier and all,

We are wondering about the applicability to GNU=C2=A0Ghostscript of the
recent vulnerabilities discovered in AGPL=C2=A0Ghostscript:

Alex Vong <alexvong1995@gmail.com> skribis:


Salvatore Bonaccorso <carnil@debian.org> w=
rites:


----------------------------------------------=
---------------------------
Debian Security Advisory DSA-3691-1                   security@debian.or=
g
https://www.debian.org/security/                     Salvatore Bo=
naccorso
October 12, 2016                      https://www.debian.org/secur=
ity/faq
-------------------------------------------------------------------------=


Package        : ghostscript
CVE ID         : CVE-2013-5653 CVE-2016-7976 CVE-2016-7977 CVE-2016-7978 =

                 CVE-2016-7979 CVE-2016-8602
Debian Bug     : 839118 839260 839841 839845 839846 840451

Several vulnerabilities were discovered in Ghostscript, the GPL
PostScript/PDF interpreter, which may lead to the execution of arbitrary
code or information disclosure if a specially crafted Postscript file is
processed.

[...]


I've checked just now. GNU Ghostscript is also a=
ffected at least by
CVE-2016-8602. Looking at the patch in this bug report[0] and the
source[1], one can see that the vulnerable lines are present in GNU
Ghostscript. What should we do now?

[0]: https://bugs.debian.org/cgi-bin/bugrep=
ort.cgi?bug=3D840451
[1]: http://git.savannah.gnu.org/cgit=
/ghostscript.git/tree/psi/zht2.c

WDYT?  Perhaps a new release incorporating the fix=
es is in order?

FYI, I ported the upstream patches to GNU ghostscrip=
t for GNU Guix.
You can find them here:

http:/=
/git.savannah.gnu.org/cgit/guix.git/commit/?id=3D1de17a648fa631f0074d315b=
fff0716220ce4880

      Mark


--------------ED9478D3860690CE1DCD96E6-- --ws44giSFH3wAfhu4HsjITiiRCBbJ1U8WU-- --xDCbhA718IPxKSsTJXM7I4gM4h8xDWpqm Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQI0BAEBCgAeBQJYA0WCFxxkaWRpZXJAZmFtaWxsZS1saW5rLmZyAAoJELN7uGQS fYWjWe4QAIv+qJXpRMyUe4MFWRHBRvunW7XtN+/vKUuUgjp+U9JoLopUiUSNSmui wA0DGERYESRnOVE7970VSQLJwDAQaauYwo1MfnsVNlJnANv2+z7/RFVX2FLs78jm nAb0+FsulNTyXQB2yDDGaRGdlaLJzqdV9t6EbMbalXDgr/1ycfmmue3778ZcygvK o2PKkVwnpVFGkd/87n9qIWbgSClkzF7KVUF+BcF3HXbn9GxJqpRbYs4/2rfNH+g+ 9l8dMYq8RRIzqVRQEvJ7OSK4Fi0TScAKOpWyTTy7Lo+lwJ4BgKiaX6T0XLOxjTN4 HPZoO/nH+kXnkwc942PyT0igP7b8eAyyheKXgpambC0/yBjNld/Khr8onjwK6EPW QJ1vfDG4iNa97SVsjqCSYOHGxJt+AHp4euEhwQHBD9ZlR2yjwI1raT0ymooH9Gyn eFSrYiELRIs67U3T7xo69LnVmtCTjWx/wYaNIh0+C8McsA0jPAc26eKlgsTH0eeL yiK/t3ye9NT0QcrbQ65BmMWToNK6HnsfF68V8BhXCSj8P9Ygj+2O2SBJ3sVeOsVR A680CzD8FcsUTG54EKiNo4QQOkLwCwZgcJCsgemTMVsa+HHW/o2ckzHfs4S0V/Wn unia7I0krHq9MvabQrnEEzeVz8GBbFettGIRVRSTVcXXTkMSt7pu =51wy -----END PGP SIGNATURE----- --xDCbhA718IPxKSsTJXM7I4gM4h8xDWpqm--