gnu: libtiff: Fix CVE-2016-{10092,10093,10094} and others.

* gnu/packages/patches/libtiff-CVE-2016-10092.patch,
gnu/packages/patches/libtiff-CVE-2016-10093.patch,
gnu/packages/patches/libtiff-CVE-2016-10094.patch,
gnu/packages/patches/libtiff-assertion-failure.patch,
gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch,
gnu/packages/patches/libtiff-divide-by-zero-tiffcp.patch,
gnu/packages/patches/libtiff-divide-by-zero-tiffcrop.patch,
gnu/packages/patches/libtiff-divide-by-zero.patch,
gnu/packages/patches/libtiff-heap-overflow-pixarlog-luv.patch,
gnu/packages/patches/libtiff-heap-overflow-tif-dirread.patch,
gnu/packages/patches/libtiff-heap-overflow-tiffcp.patch,
gnu/packages/patches/libtiff-heap-overflow-tiffcrop.patch,
gnu/packages/patches/libtiff-invalid-read.patch,
gnu/packages/patches/libtiff-null-dereference.patch,
gnu/packages/patches/libtiff-tiffcp-underflow.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/image.scm (libtiff)[replacement]: New field.
(libtiff/fixed): New variable.

16 files changed, 1041 insertions, 0 deletions

diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 4e40533a21..a9bbf192cc 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -8,6 +8,7 @@
 ;;; Copyright © 2015 Amirouche Boubekki <amirouche@hypermove.net>
 ;;; Copyright © 2014 John Darrington <jmd@gnu.org>
 ;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
+;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2016 Eric Bavier <bavier@member.fsf.org>
@@ -258,6 +259,7 @@ extracting icontainer icon files.")
 (define-public libtiff
   (package
    (name "libtiff")
+   (replacement libtiff/fixed)
    (version "4.0.7")
    (source (origin
             (method url-fetch)
@@ -290,6 +292,28 @@ collection of tools for doing simple manipulations of TIFF images.")
                                   "See COPYRIGHT in the distribution."))
    (home-page "http://www.simplesystems.org/libtiff/")))
 
+(define libtiff/fixed
+  (package
+    (inherit libtiff)
+    (source
+      (origin
+        (inherit (package-source libtiff))
+        (patches (search-patches "libtiff-heap-overflow-tiffcp.patch"
+                                 "libtiff-null-dereference.patch"
+                                 "libtiff-heap-overflow-tif-dirread.patch"
+                                 "libtiff-heap-overflow-pixarlog-luv.patch"
+                                 "libtiff-divide-by-zero.patch"
+                                 "libtiff-divide-by-zero-ojpeg.patch"
+                                 "libtiff-tiffcp-underflow.patch"
+                                 "libtiff-invalid-read.patch"
+                                 "libtiff-CVE-2016-10092.patch"
+                                 "libtiff-heap-overflow-tiffcrop.patch"
+                                 "libtiff-divide-by-zero-tiffcrop.patch"
+                                 "libtiff-CVE-2016-10093.patch"
+                                 "libtiff-divide-by-zero-tiffcp.patch"
+                                 "libtiff-assertion-failure.patch"
+                                 "libtiff-CVE-2016-10094.patch"))))))
+
 (define-public libwmf
   (package
     (name "libwmf")
diff --git a/gnu/packages/patches/libtiff-CVE-2016-10092.patch b/gnu/packages/patches/libtiff-CVE-2016-10092.patch
new file mode 100644
index 0000000000..d5fd796169
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-10092.patch
@@ -0,0 +1,42 @@
+Fix CVE-2016-10092:
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2620
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10092
+https://security-tracker.debian.org/tracker/CVE-2016-10092
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcrop.c: fix readContigStripsIntoBuffer() in -i (ignore)
+	mode so that the output buffer is correctly incremented to avoid write
+	outside bounds.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2620
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1178; previous revision: 1.1177
+/cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v  <--  tools/tiffcrop.c
+new revision: 1.47; previous revision: 1.46
+
+Index: libtiff/tools/tiffcrop.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v
+retrieving revision 1.46
+retrieving revision 1.47
+diff -u -r1.46 -r1.47
+--- libtiff/tools/tiffcrop.c	18 Nov 2016 14:58:46 -0000	1.46
++++ libtiff/tools/tiffcrop.c	3 Dec 2016 11:35:56 -0000	1.47
+@@ -1,4 +1,4 @@
+-/* $Id: tiffcrop.c,v 1.46 2016-11-18 14:58:46 erouault Exp $ */
++/* $Id: tiffcrop.c,v 1.47 2016-12-03 11:35:56 erouault Exp $ */
+ 
+ /* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
+  * the image data through additional options listed below
+@@ -3698,7 +3698,7 @@
+                                   (unsigned long) strip, (unsigned long)rows);
+                         return 0;
+                 }
+-                bufp += bytes_read;
++                bufp += stripsize;
+         }
+ 
+         return 1;
diff --git a/gnu/packages/patches/libtiff-CVE-2016-10093.patch b/gnu/packages/patches/libtiff-CVE-2016-10093.patch
new file mode 100644
index 0000000000..5897ec1029
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-10093.patch
@@ -0,0 +1,53 @@
+Fix CVE-2016-10093:
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2610
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10093
+https://security-tracker.debian.org/tracker/CVE-2016-10093
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcp.c: fix uint32 underflow/overflow that can cause
+	heap-based buffer overflow.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2610
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1187; previous revision: 1.1186
+/cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v  <--  tools/tiffcp.c
+new revision: 1.59; previous revision: 1.58
+
+Index: libtiff/tools/tiffcp.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v
+retrieving revision 1.58
+retrieving revision 1.59
+diff -u -r1.58 -r1.59
+--- libtiff/tools/tiffcp.c	3 Dec 2016 15:44:15 -0000	1.58
++++ libtiff/tools/tiffcp.c	3 Dec 2016 16:40:01 -0000	1.59
+@@ -1163,7 +1163,7 @@
+ 
+ static void
+ cpStripToTile(uint8* out, uint8* in,
+-    uint32 rows, uint32 cols, int outskew, int inskew)
++    uint32 rows, uint32 cols, int outskew, int64 inskew)
+ {
+ 	while (rows-- > 0) {
+ 		uint32 j = cols;
+@@ -1320,7 +1320,7 @@
+ 	tdata_t tilebuf;
+ 	uint32 imagew = TIFFScanlineSize(in);
+ 	uint32 tilew  = TIFFTileRowSize(in);
+-	int iskew = imagew - tilew;
++	int64 iskew = (int64)imagew - (int64)tilew;
+ 	uint8* bufp = (uint8*) buf;
+ 	uint32 tw, tl;
+ 	uint32 row;
+@@ -1348,7 +1348,7 @@
+ 				status = 0;
+ 				goto done;
+ 			}
+-			if (colb + tilew > imagew) {
++			if (colb > iskew) {
+ 				uint32 width = imagew - colb;
+ 				uint32 oskew = tilew - width;
+ 				cpStripToTile(bufp + colb,
diff --git a/gnu/packages/patches/libtiff-CVE-2016-10094.patch b/gnu/packages/patches/libtiff-CVE-2016-10094.patch
new file mode 100644
index 0000000000..9018773565
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-10094.patch
@@ -0,0 +1,34 @@
+Fix CVE-2016-10094:
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2640
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10094
+https://security-tracker.debian.org/tracker/CVE-2016-10094
+
+2016-12-20 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiff2pdf.c: avoid potential heap-based overflow in
+        t2p_readwrite_pdf_image_tile().
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2640
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1199; previous revision: 1.1198
+/cvs/maptools/cvsroot/libtiff/tools/tiff2pdf.c,v  <--  tools/tiff2pdf.c
+new revision: 1.101; previous revision: 1.100
+
+Index: libtiff/tools/tiff2pdf.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiff2pdf.c,v
+retrieving revision 1.100
+retrieving revision 1.101
+diff -u -r1.100 -r1.101
+--- libtiff/tools/tiff2pdf.c	20 Dec 2016 17:24:35 -0000	1.100
++++ libtiff/tools/tiff2pdf.c	20 Dec 2016 17:28:17 -0000	1.101
+@@ -2895,7 +2895,7 @@
+ 				return(0);
+ 			}
+ 			if(TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt) != 0) {
+-				if (count >= 4) {
++				if (count > 4) {
+                                         int retTIFFReadRawTile;
+                     /* Ignore EOI marker of JpegTables */
+ 					_TIFFmemcpy(buffer, jpt, count - 2);
diff --git a/gnu/packages/patches/libtiff-assertion-failure.patch b/gnu/packages/patches/libtiff-assertion-failure.patch
new file mode 100644
index 0000000000..ef747fbdd7
--- /dev/null
+++ b/gnu/packages/patches/libtiff-assertion-failure.patch
@@ -0,0 +1,60 @@
+Fix assertion failure in readSeparateTilesIntoBuffer():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2605
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcp.c: replace assert( (bps % 8) == 0 ) by a non assert
+check.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2605
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1188; previous revision: 1.1187
+/cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v  <--  tools/tiffcp.c
+new revision: 1.60; previous revision: 1.59
+
+Index: libtiff/tools/tiffcp.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v
+retrieving revision 1.59
+retrieving revision 1.60
+diff -u -r1.59 -r1.60
+--- libtiff/tools/tiffcp.c	3 Dec 2016 16:40:01 -0000	1.59
++++ libtiff/tools/tiffcp.c	3 Dec 2016 16:50:02 -0000	1.60
+@@ -45,7 +45,6 @@
+ #include <string.h>
+ 
+ #include <ctype.h>
+-#include <assert.h>
+ 
+ #ifdef HAVE_UNISTD_H
+ # include <unistd.h>
+@@ -1393,7 +1392,12 @@
+             status = 0;
+             goto done;
+         }
+-	assert( bps % 8 == 0 );
++        if( (bps % 8) != 0 )
++        {
++            TIFFError(TIFFFileName(in), "Error, cannot handle BitsPerSample that is not a multiple of 8");
++            status = 0;
++            goto done;
++        }
+ 	bytes_per_sample = bps/8;
+ 
+ 	for (row = 0; row < imagelength; row += tl) {
+@@ -1584,7 +1588,12 @@
+             _TIFFfree(obuf);
+             return 0;
+         }
+-	assert( bps % 8 == 0 );
++        if( (bps % 8) != 0 )
++        {
++            TIFFError(TIFFFileName(out), "Error, cannot handle BitsPerSample that is not a multiple of 8");
++            _TIFFfree(obuf);
++            return 0;
++        }
+ 	bytes_per_sample = bps/8;
+ 
+ 	for (row = 0; row < imagelength; row += tl) {
diff --git a/gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch b/gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch
new file mode 100644
index 0000000000..2a96b68521
--- /dev/null
+++ b/gnu/packages/patches/libtiff-divide-by-zero-ojpeg.patch
@@ -0,0 +1,63 @@
+Fix divide-by-zero in OJPEGDecodeRaw():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2611
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * libtiff/tif_ojpeg.c: make OJPEGDecode() early exit in case of failure
+in
+        OJPEGPreDecode(). This will avoid a divide by zero, and potential other
+issues.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2611
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1177; previous revision: 1.1176
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_ojpeg.c,v  <--  libtiff/tif_ojpeg.c
+new revision: 1.66; previous revision: 1.65
+
+Index: libtiff/libtiff/tif_ojpeg.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_ojpeg.c,v
+retrieving revision 1.65
+retrieving revision 1.66
+diff -u -r1.65 -r1.66
+--- libtiff/libtiff/tif_ojpeg.c	4 Sep 2016 21:32:56 -0000	1.65
++++ libtiff/libtiff/tif_ojpeg.c	3 Dec 2016 11:15:18 -0000	1.66
+@@ -1,4 +1,4 @@
+-/* $Id: tif_ojpeg.c,v 1.65 2016-09-04 21:32:56 erouault Exp $ */
++/* $Id: tif_ojpeg.c,v 1.66 2016-12-03 11:15:18 erouault Exp $ */
+ 
+ /* WARNING: The type of JPEG encapsulation defined by the TIFF Version 6.0
+    specification is now totally obsolete and deprecated for new applications and
+@@ -244,6 +244,7 @@
+ 
+ typedef struct {
+ 	TIFF* tif;
++        int decoder_ok;
+ 	#ifndef LIBJPEG_ENCAP_EXTERNAL
+ 	JMP_BUF exit_jmpbuf;
+ 	#endif
+@@ -722,6 +723,7 @@
+ 		}
+ 		sp->write_curstrile++;
+ 	}
++	sp->decoder_ok = 1;
+ 	return(1);
+ }
+ 
+@@ -784,8 +786,14 @@
+ static int
+ OJPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s)
+ {
++        static const char module[]="OJPEGDecode";
+ 	OJPEGState* sp=(OJPEGState*)tif->tif_data;
+ 	(void)s;
++        if( !sp->decoder_ok )
++        {
++            TIFFErrorExt(tif->tif_clientdata,module,"Cannot decode: decoder not correctly initialized");
++            return 0;
++        }
+ 	if (sp->libjpeg_jpeg_query_style==0)
+ 	{
+ 		if (OJPEGDecodeRaw(tif,buf,cc)==0)
diff --git a/gnu/packages/patches/libtiff-divide-by-zero-tiffcp.patch b/gnu/packages/patches/libtiff-divide-by-zero-tiffcp.patch
new file mode 100644
index 0000000000..d3f1c2b60e
--- /dev/null
+++ b/gnu/packages/patches/libtiff-divide-by-zero-tiffcp.patch
@@ -0,0 +1,104 @@
+Fix two divide-by-zero bugs in readSeparateTilesIntoBuffer():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2597
+http://bugzilla.maptools.org/show_bug.cgi?id=2607
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcp.c: avoid potential division by zero is BitsPerSamples
+tag is
+        missing.
+        Reported by Agostino sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2597
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1183; previous revision: 1.1182
+/cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v  <--  tools/tiffcp.c
+new revision: 1.57; previous revision: 1.56
+
+Index: libtiff/tools/tiffcp.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v
+retrieving revision 1.56
+retrieving revision 1.57
+diff -u -r1.56 -r1.57
+--- libtiff/tools/tiffcp.c	2 Dec 2016 22:13:32 -0000	1.56
++++ libtiff/tools/tiffcp.c	3 Dec 2016 14:42:40 -0000	1.57
+@@ -1,4 +1,4 @@
+-/* $Id: tiffcp.c,v 1.56 2016-12-02 22:13:32 erouault Exp $ */
++/* $Id: tiffcp.c,v 1.57 2016-12-03 14:42:40 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -1378,7 +1378,7 @@
+ 	uint8* bufp = (uint8*) buf;
+ 	uint32 tw, tl;
+ 	uint32 row;
+-	uint16 bps, bytes_per_sample;
++	uint16 bps = 0, bytes_per_sample;
+ 
+ 	tilebuf = _TIFFmalloc(tilesize);
+ 	if (tilebuf == 0)
+@@ -1387,6 +1387,12 @@
+ 	(void) TIFFGetField(in, TIFFTAG_TILEWIDTH, &tw);
+ 	(void) TIFFGetField(in, TIFFTAG_TILELENGTH, &tl);
+ 	(void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
++        if( bps == 0 )
++        {
++            TIFFError(TIFFFileName(in), "Error, cannot read BitsPerSample");
++            status = 0;
++            goto done;
++        }
+ 	assert( bps % 8 == 0 );
+ 	bytes_per_sample = bps/8;
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcp.c: avoid potential division by zero is BitsPerSamples
+tag is
+        missing.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2607
+
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1186; previous revision: 1.1185
+/cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v  <--  tools/tiffcp.c
+new revision: 1.58; previous revision: 1.57
+ 
+Index: libtiff/tools/tiffcp.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v
+retrieving revision 1.57
+retrieving revision 1.58
+diff -u -r1.57 -r1.58
+--- libtiff/tools/tiffcp.c	3 Dec 2016 14:42:40 -0000	1.57
++++ libtiff/tools/tiffcp.c	3 Dec 2016 15:44:15 -0000	1.58
+@@ -1,4 +1,4 @@
+-/* $Id: tiffcp.c,v 1.57 2016-12-03 14:42:40 erouault Exp $ */
++/* $Id: tiffcp.c,v 1.58 2016-12-03 15:44:15 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -1569,7 +1569,7 @@
+ 	uint8* bufp = (uint8*) buf;
+ 	uint32 tl, tw;
+ 	uint32 row;
+-	uint16 bps, bytes_per_sample;
++	uint16 bps = 0, bytes_per_sample;
+ 
+ 	obuf = _TIFFmalloc(TIFFTileSize(out));
+ 	if (obuf == NULL)
+@@ -1578,6 +1578,12 @@
+ 	(void) TIFFGetField(out, TIFFTAG_TILELENGTH, &tl);
+ 	(void) TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw);
+ 	(void) TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps);
++        if( bps == 0 )
++        {
++            TIFFError(TIFFFileName(out), "Error, cannot read BitsPerSample");
++            _TIFFfree(obuf);
++            return 0;
++        }
+ 	assert( bps % 8 == 0 );
+ 	bytes_per_sample = bps/8;
+ 
diff --git a/gnu/packages/patches/libtiff-divide-by-zero-tiffcrop.patch b/gnu/packages/patches/libtiff-divide-by-zero-tiffcrop.patch
new file mode 100644
index 0000000000..823293f1cf
--- /dev/null
+++ b/gnu/packages/patches/libtiff-divide-by-zero-tiffcrop.patch
@@ -0,0 +1,57 @@
+Fix divide-by-zero in readSeparateStripsIntoBuffer():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2619
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcrop.c: fix integer division by zero when BitsPerSample is
+missing.
+        Reported by Agostina Sarubo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2619
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1180; previous revision: 1.1179
+/cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v  <--  tools/tiffcrop.c
+new revision: 1.49; previous revision: 1.48
+
+Index: libtiff/tools/tiffcrop.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v
+retrieving revision 1.48
+retrieving revision 1.49
+diff -u -r1.48 -r1.49
+--- libtiff/tools/tiffcrop.c	3 Dec 2016 12:19:32 -0000	1.48
++++ libtiff/tools/tiffcrop.c	3 Dec 2016 13:00:04 -0000	1.49
+@@ -1,4 +1,4 @@
+-/* $Id: tiffcrop.c,v 1.48 2016-12-03 12:19:32 erouault Exp $ */
++/* $Id: tiffcrop.c,v 1.49 2016-12-03 13:00:04 erouault Exp $ */
+ 
+ /* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
+  * the image data through additional options listed below
+@@ -1164,7 +1164,7 @@
+   tdata_t  obuf;
+ 
+   (void) TIFFGetFieldDefaulted(out, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
+-  (void) TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps);
++  (void) TIFFGetFieldDefaulted(out, TIFFTAG_BITSPERSAMPLE, &bps);
+   bytes_per_sample = (bps + 7) / 8;
+   if( width == 0 ||
+       (uint32)bps * (uint32)spp > TIFF_UINT32_MAX / width ||
+@@ -4760,7 +4760,7 @@
+   int i, bytes_per_sample, bytes_per_pixel, shift_width, result = 1;
+   uint32 j;
+   int32  bytes_read = 0;
+-  uint16 bps, planar;
++  uint16 bps = 0, planar;
+   uint32 nstrips;
+   uint32 strips_per_sample;
+   uint32 src_rowsize, dst_rowsize, rows_processed, rps;
+@@ -4780,7 +4780,7 @@
+     }
+ 
+   memset (srcbuffs, '\0', sizeof(srcbuffs));
+-  TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
++  TIFFGetFieldDefaulted(in, TIFFTAG_BITSPERSAMPLE, &bps);
+   TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &planar);
+   TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &rps);
+   if (rps > length)
diff --git a/gnu/packages/patches/libtiff-divide-by-zero.patch b/gnu/packages/patches/libtiff-divide-by-zero.patch
new file mode 100644
index 0000000000..6dbd4666cd
--- /dev/null
+++ b/gnu/packages/patches/libtiff-divide-by-zero.patch
@@ -0,0 +1,67 @@
+Fix an integer overflow in TIFFReadEncodedStrip() that led to division-by-zero:
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2596
+
+2016-12-02 Even Rouault <even.rouault at spatialys.com>
+
+        * libtiff/tif_read.c, libtiff/tiffiop.h: fix uint32 overflow in
+        TIFFReadEncodedStrip() that caused an integer division by zero.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2596
+
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1173; previous revision: 1.1172
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_read.c,v  <--  libtiff/tif_read.c
+new revision: 1.50; previous revision: 1.49
+/cvs/maptools/cvsroot/libtiff/libtiff/tiffiop.h,v  <--  libtiff/tiffiop.h
+new revision: 1.90; previous revision: 1.89
+
+Index: libtiff/libtiff/tif_read.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_read.c,v
+retrieving revision 1.49
+retrieving revision 1.50
+diff -u -r1.49 -r1.50
+--- libtiff/libtiff/tif_read.c	10 Jul 2016 18:00:21 -0000	1.49
++++ libtiff/libtiff/tif_read.c	2 Dec 2016 21:56:56 -0000	1.50
+@@ -1,4 +1,4 @@
+-/* $Id: tif_read.c,v 1.49 2016-07-10 18:00:21 erouault Exp $ */
++/* $Id: tif_read.c,v 1.50 2016-12-02 21:56:56 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -346,7 +346,7 @@
+ 	rowsperstrip=td->td_rowsperstrip;
+ 	if (rowsperstrip>td->td_imagelength)
+ 		rowsperstrip=td->td_imagelength;
+-	stripsperplane=((td->td_imagelength+rowsperstrip-1)/rowsperstrip);
++	stripsperplane= TIFFhowmany_32_maxuint_compat(td->td_imagelength, rowsperstrip);
+ 	stripinplane=(strip%stripsperplane);
+ 	plane=(uint16)(strip/stripsperplane);
+ 	rows=td->td_imagelength-stripinplane*rowsperstrip;
+Index: libtiff/libtiff/tiffiop.h
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tiffiop.h,v
+retrieving revision 1.89
+retrieving revision 1.90
+diff -u -r1.89 -r1.90
+--- libtiff/libtiff/tiffiop.h	23 Jan 2016 21:20:34 -0000	1.89
++++ libtiff/libtiff/tiffiop.h	2 Dec 2016 21:56:56 -0000	1.90
+@@ -1,4 +1,4 @@
+-/* $Id: tiffiop.h,v 1.89 2016-01-23 21:20:34 erouault Exp $ */
++/* $Id: tiffiop.h,v 1.90 2016-12-02 21:56:56 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -250,6 +250,10 @@
+ #define TIFFhowmany_32(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \
+ 			   ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \
+ 			   0U)
++/* Variant of TIFFhowmany_32() that doesn't return 0 if x close to MAXUINT. */
++/* Caution: TIFFhowmany_32_maxuint_compat(x,y)*y might overflow */
++#define TIFFhowmany_32_maxuint_compat(x, y) \
++			   (((uint32)(x) / (uint32)(y)) + ((((uint32)(x) % (uint32)(y)) != 0) ? 1 : 0))
+ #define TIFFhowmany8_32(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3)
+ #define TIFFroundup_32(x, y) (TIFFhowmany_32(x,y)*(y))
+ #define TIFFhowmany_64(x, y) ((((uint64)(x))+(((uint64)(y))-1))/((uint64)(y)))
diff --git a/gnu/packages/patches/libtiff-heap-overflow-pixarlog-luv.patch b/gnu/packages/patches/libtiff-heap-overflow-pixarlog-luv.patch
new file mode 100644
index 0000000000..2d5e23586d
--- /dev/null
+++ b/gnu/packages/patches/libtiff-heap-overflow-pixarlog-luv.patch
@@ -0,0 +1,131 @@
+Fix heap-based buffer overflow in _TIFFmemcpy():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2604
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * libtiff/tif_pixarlog.c, libtiff/tif_luv.c: fix heap-based buffer
+        overflow on generation of PixarLog / LUV compressed files, with
+        ColorMap, TransferFunction attached and nasty plays with bitspersample.
+        The fix for LUV has not been tested, but suffers from the same kind
+        of issue of PixarLog.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2604
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1175; previous revision: 1.1174
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_luv.c,v  <--  libtiff/tif_luv.c
+new revision: 1.44; previous revision: 1.43
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_pixarlog.c,v  <-- 
+libtiff/tif_pixarlog.c
+new revision: 1.49; previous revision: 1.48
+
+Index: libtiff/libtiff/tif_luv.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_luv.c,v
+retrieving revision 1.43
+retrieving revision 1.44
+diff -u -r1.43 -r1.44
+--- libtiff/libtiff/tif_luv.c	4 Sep 2016 21:32:56 -0000	1.43
++++ libtiff/libtiff/tif_luv.c	2 Dec 2016 23:05:51 -0000	1.44
+@@ -1,4 +1,4 @@
+-/* $Id: tif_luv.c,v 1.43 2016-09-04 21:32:56 erouault Exp $ */
++/* $Id: tif_luv.c,v 1.44 2016-12-02 23:05:51 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1997 Greg Ward Larson
+@@ -158,6 +158,7 @@
+ typedef struct logLuvState LogLuvState;
+ 
+ struct logLuvState {
++        int                     encoder_state;  /* 1 if encoder correctly initialized */
+ 	int                     user_datafmt;   /* user data format */
+ 	int                     encode_meth;    /* encoding method */
+ 	int                     pixel_size;     /* bytes per pixel */
+@@ -1552,6 +1553,7 @@
+ 		    td->td_photometric, "must be either LogLUV or LogL");
+ 		break;
+ 	}
++	sp->encoder_state = 1;
+ 	return (1);
+ notsupported:
+ 	TIFFErrorExt(tif->tif_clientdata, module,
+@@ -1563,19 +1565,27 @@
+ static void
+ LogLuvClose(TIFF* tif)
+ {
++        LogLuvState* sp = (LogLuvState*) tif->tif_data;
+ 	TIFFDirectory *td = &tif->tif_dir;
+ 
++	assert(sp != 0);
+ 	/*
+ 	 * For consistency, we always want to write out the same
+ 	 * bitspersample and sampleformat for our TIFF file,
+ 	 * regardless of the data format being used by the application.
+ 	 * Since this routine is called after tags have been set but
+ 	 * before they have been recorded in the file, we reset them here.
++         * Note: this is really a nasty approach. See PixarLogClose
+ 	 */
+-	td->td_samplesperpixel =
+-	    (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3;
+-	td->td_bitspersample = 16;
+-	td->td_sampleformat = SAMPLEFORMAT_INT;
++        if( sp->encoder_state )
++        {
++            /* See PixarLogClose. Might avoid issues with tags whose size depends
++             * on those below, but not completely sure this is enough. */
++            td->td_samplesperpixel =
++                (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3;
++            td->td_bitspersample = 16;
++            td->td_sampleformat = SAMPLEFORMAT_INT;
++        }
+ }
+ 
+ static void
+Index: libtiff/libtiff/tif_pixarlog.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_pixarlog.c,v
+retrieving revision 1.48
+retrieving revision 1.49
+diff -u -r1.48 -r1.49
+--- libtiff/libtiff/tif_pixarlog.c	23 Sep 2016 22:12:18 -0000	1.48
++++ libtiff/libtiff/tif_pixarlog.c	2 Dec 2016 23:05:51 -0000	1.49
+@@ -1,4 +1,4 @@
+-/* $Id: tif_pixarlog.c,v 1.48 2016-09-23 22:12:18 erouault Exp $ */
++/* $Id: tif_pixarlog.c,v 1.49 2016-12-02 23:05:51 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1996-1997 Sam Leffler
+@@ -1233,8 +1233,10 @@
+ static void
+ PixarLogClose(TIFF* tif)
+ {
++        PixarLogState* sp = (PixarLogState*) tif->tif_data;
+ 	TIFFDirectory *td = &tif->tif_dir;
+ 
++	assert(sp != 0);
+ 	/* In a really sneaky (and really incorrect, and untruthful, and
+ 	 * troublesome, and error-prone) maneuver that completely goes against
+ 	 * the spirit of TIFF, and breaks TIFF, on close, we covertly
+@@ -1243,8 +1245,19 @@
+ 	 * readers that don't know about PixarLog, or how to set
+ 	 * the PIXARLOGDATFMT pseudo-tag.
+ 	 */
+-	td->td_bitspersample = 8;
+-	td->td_sampleformat = SAMPLEFORMAT_UINT;
++
++        if (sp->state&PLSTATE_INIT) {
++            /* We test the state to avoid an issue such as in
++             * http://bugzilla.maptools.org/show_bug.cgi?id=2604
++             * What appends in that case is that the bitspersample is 1 and
++             * a TransferFunction is set. The size of the TransferFunction
++             * depends on 1<<bitspersample. So if we increase it, an access
++             * out of the buffer will happen at directory flushing.
++             * Another option would be to clear those targs. 
++             */
++            td->td_bitspersample = 8;
++            td->td_sampleformat = SAMPLEFORMAT_UINT;
++        }
+ }
+ 
+ static void
diff --git a/gnu/packages/patches/libtiff-heap-overflow-tif-dirread.patch b/gnu/packages/patches/libtiff-heap-overflow-tif-dirread.patch
new file mode 100644
index 0000000000..68889b121b
--- /dev/null
+++ b/gnu/packages/patches/libtiff-heap-overflow-tif-dirread.patch
@@ -0,0 +1,132 @@
+Fix heap-based buffer overflow in TIFFFillStrip():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2608
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * libtiff/tif_dirread.c: modify ChopUpSingleUncompressedStrip() to
+        instanciate compute ntrips as TIFFhowmany_32(td->td_imagelength,
+rowsperstrip),
+        instead of a logic based on the total size of data. Which is faulty is
+        the total size of data is not sufficient to fill the whole image, and
+thus
+        results in reading outside of the StripByCounts/StripOffsets arrays
+when
+        using TIFFReadScanline().
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2608.
+
+        * libtiff/tif_strip.c: revert the change in TIFFNumberOfStrips() done
+        for http://bugzilla.maptools.org/show_bug.cgi?id=2587 / CVE-2016-9273
+since
+        the above change is a better fix that makes it unnecessary.
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1176; previous revision: 1.1175
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_dirread.c,v  <-- 
+libtiff/tif_dirread.c
+new revision: 1.205; previous revision: 1.204
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_strip.c,v  <--  libtiff/tif_strip.c
+new revision: 1.38; previous revision: 1.37
+
+Index: libtiff/libtiff/tif_dirread.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_dirread.c,v
+retrieving revision 1.204
+retrieving revision 1.205
+diff -u -r1.204 -r1.205
+--- libtiff/libtiff/tif_dirread.c	16 Nov 2016 15:14:15 -0000	1.204
++++ libtiff/libtiff/tif_dirread.c	3 Dec 2016 11:02:15 -0000	1.205
+@@ -1,4 +1,4 @@
+-/* $Id: tif_dirread.c,v 1.204 2016-11-16 15:14:15 erouault Exp $ */
++/* $Id: tif_dirread.c,v 1.205 2016-12-03 11:02:15 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -5502,8 +5502,7 @@
+ 	uint64 rowblockbytes;
+ 	uint64 stripbytes;
+ 	uint32 strip;
+-	uint64 nstrips64;
+-	uint32 nstrips32;
++	uint32 nstrips;
+ 	uint32 rowsperstrip;
+ 	uint64* newcounts;
+ 	uint64* newoffsets;
+@@ -5534,18 +5533,17 @@
+ 	    return;
+ 
+ 	/*
+-	 * never increase the number of strips in an image
++	 * never increase the number of rows per strip
+ 	 */
+ 	if (rowsperstrip >= td->td_rowsperstrip)
+ 		return;
+-	nstrips64 = TIFFhowmany_64(bytecount, stripbytes);
+-	if ((nstrips64==0)||(nstrips64>0xFFFFFFFF)) /* something is wonky, do nothing. */
+-	    return;
+-	nstrips32 = (uint32)nstrips64;
++        nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip);
++        if( nstrips == 0 )
++            return;
+ 
+-	newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
++	newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
+ 				"for chopped \"StripByteCounts\" array");
+-	newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
++	newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
+ 				"for chopped \"StripOffsets\" array");
+ 	if (newcounts == NULL || newoffsets == NULL) {
+ 		/*
+@@ -5562,18 +5560,18 @@
+ 	 * Fill the strip information arrays with new bytecounts and offsets
+ 	 * that reflect the broken-up format.
+ 	 */
+-	for (strip = 0; strip < nstrips32; strip++) {
++	for (strip = 0; strip < nstrips; strip++) {
+ 		if (stripbytes > bytecount)
+ 			stripbytes = bytecount;
+ 		newcounts[strip] = stripbytes;
+-		newoffsets[strip] = offset;
++		newoffsets[strip] = stripbytes ? offset : 0;
+ 		offset += stripbytes;
+ 		bytecount -= stripbytes;
+ 	}
+ 	/*
+ 	 * Replace old single strip info with multi-strip info.
+ 	 */
+-	td->td_stripsperimage = td->td_nstrips = nstrips32;
++	td->td_stripsperimage = td->td_nstrips = nstrips;
+ 	TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+ 
+ 	_TIFFfree(td->td_stripbytecount);
+Index: libtiff/libtiff/tif_strip.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_strip.c,v
+retrieving revision 1.37
+retrieving revision 1.38
+diff -u -r1.37 -r1.38
+--- libtiff/libtiff/tif_strip.c	9 Nov 2016 23:00:49 -0000	1.37
++++ libtiff/libtiff/tif_strip.c	3 Dec 2016 11:02:15 -0000	1.38
+@@ -1,4 +1,4 @@
+-/* $Id: tif_strip.c,v 1.37 2016-11-09 23:00:49 erouault Exp $ */
++/* $Id: tif_strip.c,v 1.38 2016-12-03 11:02:15 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1991-1997 Sam Leffler
+@@ -63,15 +63,6 @@
+ 	TIFFDirectory *td = &tif->tif_dir;
+ 	uint32 nstrips;
+ 
+-    /* If the value was already computed and store in td_nstrips, then return it,
+-       since ChopUpSingleUncompressedStrip might have altered and resized the
+-       since the td_stripbytecount and td_stripoffset arrays to the new value
+-       after the initial affectation of td_nstrips = TIFFNumberOfStrips() in
+-       tif_dirread.c ~line 3612.
+-       See http://bugzilla.maptools.org/show_bug.cgi?id=2587 */
+-    if( td->td_nstrips )
+-        return td->td_nstrips;
+-
+ 	nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 :
+ 	     TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip));
+ 	if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
diff --git a/gnu/packages/patches/libtiff-heap-overflow-tiffcp.patch b/gnu/packages/patches/libtiff-heap-overflow-tiffcp.patch
new file mode 100644
index 0000000000..f0fef08bf3
--- /dev/null
+++ b/gnu/packages/patches/libtiff-heap-overflow-tiffcp.patch
@@ -0,0 +1,67 @@
+Fix heap buffer overflow in tiffcp when parsing number of inks:
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2599
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tif_dir.c: when TIFFGetField(, TIFFTAG_NUMBEROFINKS, ) is
+called,
+        limit the return number of inks to SamplesPerPixel, so that code that
+parses
+        ink names doesn't go past the end of the buffer.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2599
+
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1184; previous revision: 1.1183
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_dir.c,v  <--  libtiff/tif_dir.c
+new revision: 1.128; previous revision: 1.127
+
+Index: libtiff/libtiff/tif_dir.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_dir.c,v
+retrieving revision 1.127
+retrieving revision 1.128
+diff -u -r1.127 -r1.128
+--- libtiff/libtiff/tif_dir.c	25 Oct 2016 21:35:15 -0000	1.127
++++ libtiff/libtiff/tif_dir.c	3 Dec 2016 15:30:31 -0000	1.128
+@@ -1,4 +1,4 @@
+-/* $Id: tif_dir.c,v 1.127 2016-10-25 21:35:15 erouault Exp $ */
++/* $Id: tif_dir.c,v 1.128 2016-12-03 15:30:31 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -854,6 +854,32 @@
+ 	if( fip == NULL ) /* cannot happen since TIFFGetField() already checks it */
+ 	    return 0;
+ 	
++        if( tag == TIFFTAG_NUMBEROFINKS )
++        {
++            int i;
++            for (i = 0; i < td->td_customValueCount; i++) {
++                uint16 val;
++                TIFFTagValue *tv = td->td_customValues + i;
++                if (tv->info->field_tag != tag)
++                    continue;
++                val = *(uint16 *)tv->value;
++                /* Truncate to SamplesPerPixel, since the */
++                /* setting code for INKNAMES assume that there are SamplesPerPixel */
++                /* inknames. */
++                /* Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2599 */
++                if( val > td->td_samplesperpixel )
++                {
++                    TIFFWarningExt(tif->tif_clientdata,"_TIFFVGetField",
++                                   "Truncating NumberOfInks from %u to %u",
++                                   val, td->td_samplesperpixel);
++                    val = td->td_samplesperpixel;
++                }
++                *va_arg(ap, uint16*) = val;
++                return 1;
++            }
++            return 0;
++        }
++
+ 	/*
+ 	 * We want to force the custom code to be used for custom
+ 	 * fields even if the tag happens to match a well known 
diff --git a/gnu/packages/patches/libtiff-heap-overflow-tiffcrop.patch b/gnu/packages/patches/libtiff-heap-overflow-tiffcrop.patch
new file mode 100644
index 0000000000..8166c55758
--- /dev/null
+++ b/gnu/packages/patches/libtiff-heap-overflow-tiffcrop.patch
@@ -0,0 +1,60 @@
+Fix heap-based buffer overflow in combineSeparateSamples16bits():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2621
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcrop.c: add 3 extra bytes at end of strip buffer in
+        readSeparateStripsIntoBuffer() to avoid read outside of heap allocated
+buffer.
+        Reported by Agostina Sarubo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2621
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1179; previous revision: 1.1178
+/cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v  <--  tools/tiffcrop.c
+new revision: 1.48; previous revision: 1.47
+
+Index: libtiff/tools/tiffcrop.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcrop.c,v
+retrieving revision 1.47
+retrieving revision 1.48
+diff -u -r1.47 -r1.48
+--- libtiff/tools/tiffcrop.c	3 Dec 2016 11:35:56 -0000	1.47
++++ libtiff/tools/tiffcrop.c	3 Dec 2016 12:19:32 -0000	1.48
+@@ -1,4 +1,4 @@
+-/* $Id: tiffcrop.c,v 1.47 2016-12-03 11:35:56 erouault Exp $ */
++/* $Id: tiffcrop.c,v 1.48 2016-12-03 12:19:32 erouault Exp $ */
+ 
+ /* tiffcrop.c -- a port of tiffcp.c extended to include manipulations of
+  * the image data through additional options listed below
+@@ -4815,10 +4815,17 @@
+   nstrips = TIFFNumberOfStrips(in);
+   strips_per_sample = nstrips /spp;
+ 
++  /* Add 3 padding bytes for combineSeparateSamples32bits */
++  if( (size_t) stripsize > 0xFFFFFFFFU - 3U )
++  {
++      TIFFError("readSeparateStripsIntoBuffer", "Integer overflow when calculating buffer size.");
++      exit(-1);
++  }
++
+   for (s = 0; (s < spp) && (s < MAX_SAMPLES); s++)
+     {
+     srcbuffs[s] = NULL;
+-    buff = _TIFFmalloc(stripsize);
++    buff = _TIFFmalloc(stripsize + 3);
+     if (!buff)
+       {
+       TIFFError ("readSeparateStripsIntoBuffer", 
+@@ -4827,6 +4834,9 @@
+         _TIFFfree (srcbuffs[i]);
+       return 0;
+       }
++    buff[stripsize] = 0;
++    buff[stripsize+1] = 0;
++    buff[stripsize+2] = 0;
+     srcbuffs[s] = buff;
+     }
+ 
diff --git a/gnu/packages/patches/libtiff-invalid-read.patch b/gnu/packages/patches/libtiff-invalid-read.patch
new file mode 100644
index 0000000000..92742d8757
--- /dev/null
+++ b/gnu/packages/patches/libtiff-invalid-read.patch
@@ -0,0 +1,64 @@
+Fix invalid read in t2p_writeproc():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2639
+
+2016-12-20 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiff2pdf.c: avoid potential invalid memory read in
+        t2p_writeproc.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2639
+
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1198; previous revision: 1.1197
+/cvs/maptools/cvsroot/libtiff/tools/tiff2pdf.c,v  <--  tools/tiff2pdf.c
+new revision: 1.100; previous revision: 1.99
+
+Index: libtiff/tools/tiff2pdf.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiff2pdf.c,v
+retrieving revision 1.99
+retrieving revision 1.100
+diff -u -r1.99 -r1.100
+--- libtiff/tools/tiff2pdf.c	20 Dec 2016 17:13:26 -0000	1.99
++++ libtiff/tools/tiff2pdf.c	20 Dec 2016 17:24:35 -0000	1.100
+@@ -2896,6 +2896,7 @@
+ 			}
+ 			if(TIFFGetField(input, TIFFTAG_JPEGTABLES, &count, &jpt) != 0) {
+ 				if (count >= 4) {
++                                        int retTIFFReadRawTile;
+                     /* Ignore EOI marker of JpegTables */
+ 					_TIFFmemcpy(buffer, jpt, count - 2);
+ 					bufferoffset += count - 2;
+@@ -2903,22 +2904,23 @@
+ 					table_end[0] = buffer[bufferoffset-2];
+ 					table_end[1] = buffer[bufferoffset-1];
+ 					xuint32 = bufferoffset;
+-                    bufferoffset -= 2;
+-					bufferoffset += TIFFReadRawTile(
++                                        bufferoffset -= 2;
++                                        retTIFFReadRawTile= TIFFReadRawTile(
+ 						input, 
+ 						tile, 
+ 						(tdata_t) &(((unsigned char*)buffer)[bufferoffset]), 
+ 						-1);
++                                        if( retTIFFReadRawTile < 0 )
++                                        {
++                                            _TIFFfree(buffer);
++                                            t2p->t2p_error = T2P_ERR_ERROR;
++                                            return(0);
++                                        }
++					bufferoffset += retTIFFReadRawTile;
+                     /* Overwrite SOI marker of image scan with previously */
+                     /* saved end of JpegTables */
+ 					buffer[xuint32-2]=table_end[0];
+ 					buffer[xuint32-1]=table_end[1];
+-				} else {
+-					bufferoffset += TIFFReadRawTile(
+-						input, 
+-						tile, 
+-						(tdata_t) &(((unsigned char*)buffer)[bufferoffset]), 
+-						-1);
+ 				}
+ 			}
+ 			t2pWriteFile(output, (tdata_t) buffer, bufferoffset);
diff --git a/gnu/packages/patches/libtiff-null-dereference.patch b/gnu/packages/patches/libtiff-null-dereference.patch
new file mode 100644
index 0000000000..8c6345b804
--- /dev/null
+++ b/gnu/packages/patches/libtiff-null-dereference.patch
@@ -0,0 +1,42 @@
+Fix NULL pointer dereference in TIFFReadRawData():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2594
+
+
+2016-12-03 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffinfo.c: fix null pointer dereference in -r mode when
+        * the
+image has
+        no StripByteCount tag.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2594
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1182; previous revision: 1.1181
+/cvs/maptools/cvsroot/libtiff/tools/tiffinfo.c,v  <--  tools/tiffinfo.c
+new revision: 1.26; previous revision: 1.25
+
+Index: libtiff/tools/tiffinfo.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffinfo.c,v
+retrieving revision 1.25
+retrieving revision 1.26
+diff -u -r1.25 -r1.26
+--- libtiff/tools/tiffinfo.c	12 Nov 2016 20:06:05 -0000	1.25
++++ libtiff/tools/tiffinfo.c	3 Dec 2016 14:18:49 -0000	1.26
+@@ -1,4 +1,4 @@
+-/* $Id: tiffinfo.c,v 1.25 2016-11-12 20:06:05 bfriesen Exp $ */
++/* $Id: tiffinfo.c,v 1.26 2016-12-03 14:18:49 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -417,7 +417,7 @@
+ 	uint64* stripbc=NULL;
+ 
+ 	TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &stripbc);
+-	if (nstrips > 0) {
++	if (stripbc != NULL && nstrips > 0) {
+ 		uint32 bufsize = (uint32) stripbc[0];
+ 		tdata_t buf = _TIFFmalloc(bufsize);
+ 		tstrip_t s;
diff --git a/gnu/packages/patches/libtiff-tiffcp-underflow.patch b/gnu/packages/patches/libtiff-tiffcp-underflow.patch
new file mode 100644
index 0000000000..5615cbb3e1
--- /dev/null
+++ b/gnu/packages/patches/libtiff-tiffcp-underflow.patch
@@ -0,0 +1,41 @@
+Fix a integer underflow in tiffcp that led to heap overflows in
+TIFFReverseBits():
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2598
+
+2016-12-02 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcp.c: avoid uint32 underflow in cpDecodedStrips that 
+        can cause various issues, such as buffer overflows in the library.
+        Reported by Agostino Sarubbo.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2598
+
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1174; previous revision: 1.1173
+/cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v  <--  tools/tiffcp.c
+new revision: 1.56; previous revision: 1.55
+
+Index: libtiff/tools/tiffcp.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v
+retrieving revision 1.55
+retrieving revision 1.56
+diff -u -r1.55 -r1.56
+--- libtiff/tools/tiffcp.c	8 Oct 2016 15:54:57 -0000	1.55
++++ libtiff/tools/tiffcp.c	2 Dec 2016 22:13:32 -0000	1.56
+@@ -1,4 +1,4 @@
+-/* $Id: tiffcp.c,v 1.55 2016-10-08 15:54:57 erouault Exp $ */
++/* $Id: tiffcp.c,v 1.56 2016-12-02 22:13:32 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -985,7 +985,7 @@
+ 		tstrip_t s, ns = TIFFNumberOfStrips(in);
+ 		uint32 row = 0;
+ 		_TIFFmemset(buf, 0, stripsize);
+-		for (s = 0; s < ns; s++) {
++		for (s = 0; s < ns && row < imagelength; s++) {
+ 			tsize_t cc = (row + rowsperstrip > imagelength) ?
+ 			    TIFFVStripSize(in, imagelength - row) : stripsize;
+ 			if (TIFFReadEncodedStrip(in, s, buf, cc) < 0