gnu: libtiff: Fix CVE-2017-5225.

* gnu/packages/patches/libtiff-CVE-2017-5225.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/image.scm (libtiff/fixed)[source]: Use it.

3 files changed, 89 insertions, 1 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index d321824ece..3d8e462d63 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -689,6 +689,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/libtiff-CVE-2016-10092.patch		\
   %D%/packages/patches/libtiff-CVE-2016-10093.patch		\
   %D%/packages/patches/libtiff-CVE-2016-10094.patch		\
+  %D%/packages/patches/libtiff-CVE-2017-5225.patch		\
   %D%/packages/patches/libtiff-assertion-failure.patch		\
   %D%/packages/patches/libtiff-divide-by-zero-ojpeg.patch	\
   %D%/packages/patches/libtiff-divide-by-zero-tiffcp.patch	\
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index a9bbf192cc..637819947c 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -312,7 +312,8 @@ collection of tools for doing simple manipulations of TIFF images.")
                                  "libtiff-CVE-2016-10093.patch"
                                  "libtiff-divide-by-zero-tiffcp.patch"
                                  "libtiff-assertion-failure.patch"
-                                 "libtiff-CVE-2016-10094.patch"))))))
+                                 "libtiff-CVE-2016-10094.patch"
+                                 "libtiff-CVE-2017-5225.patch"))))))
 
 (define-public libwmf
   (package
diff --git a/gnu/packages/patches/libtiff-CVE-2017-5225.patch b/gnu/packages/patches/libtiff-CVE-2017-5225.patch
new file mode 100644
index 0000000000..3158b49360
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2017-5225.patch
@@ -0,0 +1,86 @@
+Fix CVE-2017-5225 (Heap based buffer overflow in tools/tiffcp):
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2656
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5225
+https://security-tracker.debian.org/tracker/CVE-2017-5225
+
+2017-01-11 Even Rouault <even.rouault at spatialys.com>
+
+        * tools/tiffcp.c: error out cleanly in cpContig2SeparateByRow and
+        cpSeparate2ContigByRow if BitsPerSample != 8 to avoid heap based
+overflow.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2656 and
+        http://bugzilla.maptools.org/show_bug.cgi?id=2657
+
+
+less C/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1210; previous revision: 1.1209
+/cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v  <--  tools/tiffcp.c
+new revision: 1.61; previous revision: 1.60
+
+Index: libtiff/tools/tiffcp.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/tools/tiffcp.c,v
+retrieving revision 1.60
+retrieving revision 1.61
+diff -u -r1.60 -r1.61
+--- libtiff/tools/tiffcp.c	3 Dec 2016 16:50:02 -0000	1.60
++++ libtiff/tools/tiffcp.c	11 Jan 2017 19:26:14 -0000	1.61
+#@@ -1,4 +1,4 @@
+#-/* $Id: tiffcp.c,v 1.60 2016-12-03 16:50:02 erouault Exp $ */
+#+/* $Id: tiffcp.c,v 1.61 2017-01-11 19:26:14 erouault Exp $ */
+# 
+# /*
+#  * Copyright (c) 1988-1997 Sam Leffler
+@@ -591,7 +591,7 @@
+ static int
+ tiffcp(TIFF* in, TIFF* out)
+ {
+-	uint16 bitspersample, samplesperpixel = 1;
++	uint16 bitspersample = 1, samplesperpixel = 1;
+ 	uint16 input_compression, input_photometric = PHOTOMETRIC_MINISBLACK;
+ 	copyFunc cf;
+ 	uint32 width, length;
+@@ -1067,6 +1067,16 @@
+ 	register uint32 n;
+ 	uint32 row;
+ 	tsample_t s;
++        uint16 bps = 0;
++
++        (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
++        if( bps != 8 )
++        {
++            TIFFError(TIFFFileName(in),
++                      "Error, can only handle BitsPerSample=8 in %s",
++                      "cpContig2SeparateByRow");
++            return 0;
++        }
+ 
+ 	inbuf = _TIFFmalloc(scanlinesizein);
+ 	outbuf = _TIFFmalloc(scanlinesizeout);
+@@ -1120,6 +1130,16 @@
+ 	register uint32 n;
+ 	uint32 row;
+ 	tsample_t s;
++        uint16 bps = 0;
++
++        (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
++        if( bps != 8 )
++        {
++            TIFFError(TIFFFileName(in),
++                      "Error, can only handle BitsPerSample=8 in %s",
++                      "cpSeparate2ContigByRow");
++            return 0;
++        }
+ 
+ 	inbuf = _TIFFmalloc(scanlinesizein);
+ 	outbuf = _TIFFmalloc(scanlinesizeout);
+@@ -1784,7 +1804,7 @@
+ 	uint32 w, l, tw, tl;
+ 	int bychunk;
+ 
+-	(void) TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv);
++	(void) TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &shortv);
+ 	if (shortv != config && bitspersample != 8 && samplesperpixel > 1) {
+ 		fprintf(stderr,
+ 		    "%s: Cannot handle different planar configuration w/ bits/sample != 8\n",