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>

2 files changed, 139 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));
diff --git a/gnu/packages/patches/libtiff-CVE-2017-9936.patch b/gnu/packages/patches/libtiff-CVE-2017-9936.patch
new file mode 100644
index 0000000000..fbdbcd0f0b
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2017-9936.patch
@@ -0,0 +1,47 @@
+Fix CVE-2017-9936:
+
+http://bugzilla.maptools.org/show_bug.cgi?id=2706
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9936
+https://security-tracker.debian.org/tracker/CVE-2017-9936
+
+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/fe8d7165956b88df4837034a9161dc5fd20cf67a
+
+2017-06-26  Even Rouault <even.rouault at spatialys.com>
+
+        * libtiff/tif_jbig.c: fix memory leak in error code path of
+JBIGDecode()
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2706
+        Reported by team OWL337
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1254; previous revision: 1.1253
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_jbig.c,v  <--  libtiff/tif_jbig.c
+new revision: 1.16; previous revision: 1.15
+
+Index: libtiff/libtiff/tif_jbig.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_jbig.c,v
+retrieving revision 1.15
+retrieving revision 1.16
+diff -u -r1.15 -r1.16
+--- libtiff/libtiff/tif_jbig.c	10 Mar 2010 18:56:48 -0000	1.15
++++ libtiff/libtiff/tif_jbig.c	26 Jun 2017 15:20:00 -0000	1.16
+@@ -1,4 +1,4 @@
+-/* $Id: tif_jbig.c,v 1.15 2010-03-10 18:56:48 bfriesen Exp $ */
++/* $Id: tif_jbig.c,v 1.16 2017-06-26 15:20:00 erouault Exp $ */
+ 
+ /*
+  * Copyright (c) 1988-1997 Sam Leffler
+@@ -94,6 +94,7 @@
+ 			     jbg_strerror(decodeStatus)
+ #endif
+ 			     );
++		jbg_dec_free(&decoder);
+ 		return 0;
+ 	}
+