Re: ghostscript vulnerabilities
Didier Link <[email protected]> Sun, 6 Nov 2016 19:34:55 +0100
| Newsgroups | gmane.comp.gnu.guix.devel,gmane.comp.printing.ghostscript.bugs |
|---|---|
| Message-ID | <[email protected]> |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --B1LSHF5sRuuNr3PxPvrDngDGVva1WDGrC Content-Type: multipart/mixed; boundary="ii2Q4fcS4QtmBp3ScxGWcoJIS1wnaeQtk" From: Didier Link <[email protected]> To: [email protected] Cc: Alex Vong <[email protected]>, Mark H Weaver <[email protected]>, =?UTF-8?Q?Ludovic_Court=c3=a8s?= <[email protected]>, [email protected] Message-ID: <[email protected]> Subject: Re: ghostscript vulnerabilities References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> In-Reply-To: <[email protected]> --ii2Q4fcS4QtmBp3ScxGWcoJIS1wnaeQtk Content-Type: multipart/alternative; boundary="------------B9CE162A6AB66FFCA20AA20D" This is a multi-part message in MIME format. --------------B9CE162A6AB66FFCA20AA20D Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Le 16/10/2016 =C3=A0 17:47, Alex Vong a =C3=A9crit : > Hello, > > I notice the patch for CVE-2016-7977[0] handles the problem differently= > than GNU Ghostscript[1] does. Maybe you can take a look at it. > > [0]: http://git.ghostscript.com/?p=3Dghostpdl.git;a=3Dcommitdiff;h=3D8a= bd22010eb4db0fb1b10e430d5f5d83e015ef70 > [1]: http://git.savannah.gnu.org/cgit/ghostscript.git/tree/psi/zfile.c > > Thanks, > Alex Hello, I've just released a gnu-ghostscript point release with the CVE patches adapted by Mark (really thanks !!!). For the CVE-2016-7977 I've see that the file concerned was modified in later release of gpl-ghostscript, I will see in later release of gnu version ;) Best regards Didier > > Didier Link <[email protected]> writes: > >> 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 : >> >> [email protected] (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 <[email protected]> skribis: >> >> Salvatore Bonaccorso <[email protected]> writes: >> >> ---------------------------------------------------------------------= ---- >> =20 >> Debian Security Advisory DSA-3691-1 security@debian.= org >> https://www.debian.org/security/ Salvatore Bonacco= rso >> October 12, 2016 https://www.debian.org/security/= faq >> ----------------------------------------------------------------------= --- >> >> Package : ghostscript >> CVE ID : CVE-2013-5653 CVE-2016-7976 CVE-2016-7977 CVE-2016-79= 78=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 arbitra= ry >> code or information disclosure if a specially crafted Postscript file = 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=3D1de17a648fa631f= 0074d315bfff0716220ce4880 >> >> Mark --------------B9CE162A6AB66FFCA20AA20D Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html> <head> <meta http-equiv=3D"content-type" content=3D"text/html; charset=3Dutf= -8"> </head> <body bgcolor=3D"#FFFFFF" text=3D"#000000"> <div class=3D"moz-cite-prefix">Le 16/10/2016 =C3=A0 17:47, Alex Vong = a =C3=A9crit=C2=A0:<br> </div> <blockquote class=3D" cite" id=3D"mid_87twcc5m90_fsf_gmail_com" cite=3D"mid:[email protected]" type=3D"cite"> <pre wrap=3D"">Hello, I notice the patch for CVE-2016-7977[0] handles the problem differently than GNU Ghostscript[1] does. Maybe you can take a look at it. [0]: <a class=3D"moz-txt-link-freetext" href=3D"http://git.ghostscript.co= m/?p=3Dghostpdl.git;a=3Dcommitdiff;h=3D8abd22010eb4db0fb1b10e430d5f5d83e0= 15ef70">http://git.ghostscript.com/?p=3Dghostpdl.git;a=3Dcommitdiff;h=3D8= abd22010eb4db0fb1b10e430d5f5d83e015ef70</a> [1]: <a class=3D"moz-txt-link-freetext" href=3D"http://git.savannah.gnu.o= rg/cgit/ghostscript.git/tree/psi/zfile.c">http://git.savannah.gnu.org/cgi= t/ghostscript.git/tree/psi/zfile.c</a> Thanks, Alex</pre> </blockquote> <br> Hello,<br> <br> I've just released a gnu-ghostscript point release with the CVE patches adapted by Mark (really thanks !!!).<br> <br> For the CVE-2016-7977 I've see that the file concerned was modified in later release of gpl-ghostscript, I will see in later release of gnu version ;)<br> <br> Best regards<br> <br> Didier<br> <br> <blockquote class=3D" cite" id=3D"mid_87twcc5m90_fsf_gmail_com" cite=3D"mid:[email protected]" type=3D"cite"> <pre wrap=3D""> Didier Link <a class=3D"moz-txt-link-rfc2396E" href=3D"mailto:didier@fami= lle-link.fr"><[email protected]></a> writes: </pre> <blockquote class=3D" cite" id=3D"Cite_9616606" type=3D"cite"> <pre wrap=3D"">Hello all I will review the Mark's patches and apply them for a security release ne= xt week. Thanks for your help ! Best regards Didier Le 15/10/2016 =C3=A0 09:36, Mark H Weaver a =C3=A9crit : <a class=3D"moz-txt-link-abbreviated" href=3D"mailto:[email protected]">ludo@= gnu.org</a> (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 <a class=3D"moz-txt-link-rfc2396E" href=3D"mailto:alexvong1995@= gmail.com"><[email protected]></a> skribis: Salvatore Bonaccorso <a class=3D"moz-txt-link-rfc2396E" href=3D"mailto:c= [email protected]"><[email protected]></a> writes: ------------------------------------------------------------------------= - =20 Debian Security Advisory DSA-3691-1 <a class=3D"moz-txt= -link-abbreviated" href=3D"mailto:[email protected]">[email protected]= g</a> <a class=3D"moz-txt-link-freetext" href=3D"https://www.debian.org/securit= y/">https://www.debian.org/security/</a> Salvatore Bo= naccorso October 12, 2016 <a class=3D"moz-txt-link-freetext" = href=3D"https://www.debian.org/security/faq">https://www.debian.org/secur= ity/faq</a> -------------------------------------------------------------------------= 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 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]: <a class=3D"moz-txt-link-freetext" href=3D"https://bugs.debian.org/c= gi-bin/bugreport.cgi?bug=3D840451">https://bugs.debian.org/cgi-bin/bugrep= ort.cgi?bug=3D840451</a> [1]: <a class=3D"moz-txt-link-freetext" href=3D"http://git.savannah.gnu.o= rg/cgit/ghostscript.git/tree/psi/zht2.c">http://git.savannah.gnu.org/cgit= /ghostscript.git/tree/psi/zht2.c</a> 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: <a class=3D"moz-txt-link-freetext" href=3D"http://git.savannah.gnu.org/cg= it/guix.git/commit/?id=3D1de17a648fa631f0074d315bfff0716220ce4880">http:/= /git.savannah.gnu.org/cgit/guix.git/commit/?id=3D1de17a648fa631f0074d315b= fff0716220ce4880</a> Mark </pre> </blockquote> </blockquote> <p><br> </p> </body> </html> --------------B9CE162A6AB66FFCA20AA20D-- --ii2Q4fcS4QtmBp3ScxGWcoJIS1wnaeQtk-- --B1LSHF5sRuuNr3PxPvrDngDGVva1WDGrC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQI0BAEBCgAeBQJYH3fVFxxkaWRpZXJAZmFtaWxsZS1saW5rLmZyAAoJELN7uGQS fYWjOo0QAIokYNA+eswGclQjtqx4M0JQ9gXUWWj5IoIrCEiizyGvgHt7RQASW/Kg zaAnNJ6CXwwn+IxEnf4zsl2qRxp17i9MDjBNG6EjBusXZKINsx0hHI8lDNSqSK0Y 4LoBCeqvJxTp4eRecMMACiyPftx3Gzo72ITwSedFNbpXw1D7sqUCiZByRqHqnbF6 GuI4IeU3ccA7UYGpCKp/nTy5nc+oiKUmUbBQsC19wRj0OvFQteUzEVas8IlE9PIH 8qGt+iKLtPg9a79UVWTA88XWCfM7HqBNyU8RkyOnOGdosO+D5yhx4O/DnqLQpwch UgdsxgYj+rWMRb5sCqnv/RVWAccwNwNWbTWSUULvncE5n/3VUmmg/5fND2X/odaV W53QNjR0bZHdiCrkZ/9v0dICr2r6NWK9lEFptbbBu0lRgfe9XuUpYk4FiyUxUbRS hrt9rXz4DyPgAJQXMLHEuXCApDxLRFOX2CIbMaW5csTkcODsqSjPYAoXP3llRwW0 dmjOrj62qwG/zYI4j9jp+Z3PqibzaaaETTr7dGg2urSXCWzZGnAZzONNmzyNpx/x cHqnobow948MRAnjT1zhPpkibYL1pLft8WFU6SD1uERAv1NLh/x49FSE2j4QUt6T CYGzVbZ9p+XUXyMwXSNHCRwguQJGFfWJ8cCS/8Ie2RunjCZgppOO =dIga -----END PGP SIGNATURE----- --B1LSHF5sRuuNr3PxPvrDngDGVva1WDGrC--