gnu: libtiff: Fix CVE-2017-{9936,10688}.

* gnu/packages/patches/libtiff-CVE-2017-9936.patch,
gnu/packages/patches/libtiff-CVE-2017-10688.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/image.scm (libtiff-4.0.8)[source]: Use them.

Signed-off-by: Leo Famulari <leo@famulari.name>

1 files changed, 92 insertions, 0 deletions

diff --git a/gnu/packages/patches/libtiff-CVE-2016-10688.patch b/gnu/packages/patches/libtiff-CVE-2016-10688.patch
new file mode 100644
index 0000000000..1630274c61
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-10688.patch
@@ -0,0 +1,92 @@
+Fix CVE-2017-10688:
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2712
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10688
+https://security-tracker.debian.org/tracker/CVE-2017-10688
+
+Patch lifted from upstream source repository (the changes to 'ChangeLog'
+don't apply to the libtiff 4.0.8 release tarball).
+
+3rd party Git reference:
+
+https://github.com/vadz/libtiff/commit/6173a57d39e04d68b139f8c1aa499a24dbe74ba1
+
+2017-06-30  Even Rouault <even.rouault at spatialys.com>
+
+        * libtiff/tif_dirwrite.c: in TIFFWriteDirectoryTagCheckedXXXX()
+        functions associated with LONG8/SLONG8 data type, replace assertion
+that
+        the file is BigTIFF, by a non-fatal error.
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2712
+        Reported by team OWL337
+
+
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1259; previous revision: 1.1258
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_dirwrite.c,v  <-- 
+libtiff/tif_dirwrite.c
+new revision: 1.86; previous revision: 1.85
+
+Index: libtiff/libtiff/tif_dirwrite.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_dirwrite.c,v
+retrieving revision 1.85
+retrieving revision 1.86
+diff -u -r1.85 -r1.86
+--- libtiff/libtiff/tif_dirwrite.c	11 Jan 2017 16:09:02 -0000	1.85
++++ libtiff/libtiff/tif_dirwrite.c	30 Jun 2017 17:29:44 -0000	1.86
+@@ -1,4 +1,4 @@
+-/* $Id: tif_dirwrite.c,v 1.85 2017-01-11 16:09:02 erouault Exp $ */
++/* $Id: tif_dirwrite.c,v 1.86 2017-06-30 17:29:44 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -2111,7 +2111,10 @@
+ {
+ 	uint64 m;
+ 	assert(sizeof(uint64)==8);
+-	assert(tif->tif_flags&TIFF_BIGTIFF);
++	if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
++		TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
++		return(0);
++	}
+ 	m=value;
+ 	if (tif->tif_flags&TIFF_SWAB)
+ 		TIFFSwabLong8(&m);
+@@ -2124,7 +2127,10 @@
+ {
+ 	assert(count<0x20000000);
+ 	assert(sizeof(uint64)==8);
+-	assert(tif->tif_flags&TIFF_BIGTIFF);
++	if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
++		TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","LONG8 not allowed for ClassicTIFF");
++		return(0);
++	}
+ 	if (tif->tif_flags&TIFF_SWAB)
+ 		TIFFSwabArrayOfLong8(value,count);
+ 	return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_LONG8,count,count*8,value));
+@@ -2136,7 +2142,10 @@
+ {
+ 	int64 m;
+ 	assert(sizeof(int64)==8);
+-	assert(tif->tif_flags&TIFF_BIGTIFF);
++	if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
++		TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","SLONG8 not allowed for ClassicTIFF");
++		return(0);
++	}
+ 	m=value;
+ 	if (tif->tif_flags&TIFF_SWAB)
+ 		TIFFSwabLong8((uint64*)(&m));
+@@ -2149,7 +2158,10 @@
+ {
+ 	assert(count<0x20000000);
+ 	assert(sizeof(int64)==8);
+-	assert(tif->tif_flags&TIFF_BIGTIFF);
++	if( !(tif->tif_flags&TIFF_BIGTIFF) ) {
++		TIFFErrorExt(tif->tif_clientdata,"TIFFWriteDirectoryTagCheckedLong8","SLONG8 not allowed for ClassicTIFF");
++		return(0);
++	}
+ 	if (tif->tif_flags&TIFF_SWAB)
+ 		TIFFSwabArrayOfLong8((uint64*)value,count);
+ 	return(TIFFWriteDirectoryTagData(tif,ndir,dir,tag,TIFF_SLONG8,count,count*8,value));