[pkgsrc/trunk]: pkgsrc/print/mupdf Fix possible heap corruption (via upstream...

[leot <leot%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/4a377b2870ef
branches:  trunk
changeset: 350701:4a377b2870ef
user:      leot <leot%pkgsrc.org@localhost>
date:      Wed Aug 03 08:50:17 2016 +0000

description:
Fix possible heap corruption (via upstream bug 696954).

Bump PKGREVISION

diffstat:

 print/mupdf/Makefile                             |   4 ++--
 print/mupdf/distinfo                             |   3 ++-
 print/mupdf/patches/patch-source_pdf_pdf-shade.c |  15 +++++++++++++++
 3 files changed, 19 insertions(+), 3 deletions(-)

diffs (49 lines):

diff -r ed81311c1e2f -r 4a377b2870ef print/mupdf/Makefile
--- a/print/mupdf/Makefile      Wed Aug 03 04:20:44 2016 +0000
+++ b/print/mupdf/Makefile      Wed Aug 03 08:50:17 2016 +0000
@@ -1,8 +1,8 @@
-# $NetBSD: Makefile,v 1.38 2016/07/22 15:42:38 leot Exp $
+# $NetBSD: Makefile,v 1.39 2016/08/03 08:50:17 leot Exp $
 
 DISTNAME=      mupdf-1.9a-source
 PKGNAME=       ${DISTNAME:S/-source//}
-PKGREVISION=   2
+PKGREVISION=   3
 CATEGORIES=    print
 MASTER_SITES=  http://mupdf.com/downloads/archive/
 
diff -r ed81311c1e2f -r 4a377b2870ef print/mupdf/distinfo
--- a/print/mupdf/distinfo      Wed Aug 03 04:20:44 2016 +0000
+++ b/print/mupdf/distinfo      Wed Aug 03 08:50:17 2016 +0000
@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.26 2016/07/22 15:42:38 leot Exp $
+$NetBSD: distinfo,v 1.27 2016/08/03 08:50:17 leot Exp $
 
 SHA1 (mupdf-1.9a-source.tar.gz) = f2b3c21e5060d6ec56ea0d0c32b0feac7eac0e5f
 RMD160 (mupdf-1.9a-source.tar.gz) = 0cb0d098c603b16be217e42299052a928d95c3fc
@@ -9,5 +9,6 @@
 SHA1 (patch-ac) = 51b62ef8ff3e6c44ad954b2405bd982f9d682d37
 SHA1 (patch-ae) = c6b113818b32cb4470e8549c00a16e0b2f364ede
 SHA1 (patch-source_fitz_load-jpx.c) = cb33828a6ca638c1b61ff017708a41cc586d1b0e
+SHA1 (patch-source_pdf_pdf-shade.c) = 9baba48f468e0827b77c25c05b226c763cf4975f
 SHA1 (patch-source_pdf_pdf-xref.c) = 406c7a664b7171eb5ca7c5a09aac6be549a8fbb5
 SHA1 (patch-thirdparty_mujs_Makefile) = f1da7cdf2c9e2e4bbac3e80ef486204a39b27e34
diff -r ed81311c1e2f -r 4a377b2870ef print/mupdf/patches/patch-source_pdf_pdf-shade.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/print/mupdf/patches/patch-source_pdf_pdf-shade.c  Wed Aug 03 08:50:17 2016 +0000
@@ -0,0 +1,15 @@
+$NetBSD: patch-source_pdf_pdf-shade.c,v 1.1 2016/08/03 08:50:17 leot Exp $
+
+Fix possible heap corruption vulnerability (via upstream bug 696954).
+
+--- source/pdf/pdf-shade.c.orig        2016-04-21 11:14:32.000000000 +0000
++++ source/pdf/pdf-shade.c
+@@ -206,7 +206,7 @@ pdf_load_mesh_params(fz_context *ctx, pd
+       obj = pdf_dict_get(ctx, dict, PDF_NAME_Decode);
+       if (pdf_array_len(ctx, obj) >= 6)
+       {
+-              n = (pdf_array_len(ctx, obj) - 4) / 2;
++              n = fz_mini(FZ_MAX_COLORS, (pdf_array_len(ctx, obj) - 4) / 2);
+               shade->u.m.x0 = pdf_to_real(ctx, pdf_array_get(ctx, obj, 0));
+               shade->u.m.x1 = pdf_to_real(ctx, pdf_array_get(ctx, obj, 1));
+               shade->u.m.y0 = pdf_to_real(ctx, pdf_array_get(ctx, obj, 2));