gnu: libtiff: Add fixes for several CVEs.

* gnu/packages/patches/libtiff-CVE-2012-4564.patch, gnu/packages/patches/libtiff-CVE-2013-1960.patch, gnu/packages/patches/libtiff-CVE-2013-1961.patch, gnu/packages/patches/libtiff-CVE-2013-4231.patch, gnu/packages/patches/libtiff-CVE-2013-4232.patch, gnu/packages/patches/libtiff-CVE-2013-4243.patch, gnu/packages/patches/libtiff-CVE-2013-4244.patch, gnu/packages/patches/libtiff-CVE-2014-8127-pt1.patch, gnu/packages/patches/libtiff-CVE-2014-8127-pt2.patch, gnu/packages/patches/libtiff-CVE-2014-8127-pt3.patch, gnu/packages/patches/libtiff-CVE-2014-8127-pt4.patch, gnu/packages/patches/libtiff-CVE-2014-8128-pt1.patch, gnu/packages/patches/libtiff-CVE-2014-8128-pt2.patch, gnu/packages/patches/libtiff-CVE-2014-8128-pt3.patch, gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch, gnu/packages/patches/libtiff-CVE-2014-8128-pt5.patch, gnu/packages/patches/libtiff-CVE-2014-8129.patch, gnu/packages/patches/libtiff-CVE-2014-9330.patch, gnu/packages/patches/libtiff-CVE-2014-9655.patch: New files. * gnu-system.am (dist_patch_DATA): Add them. * gnu/packages/image.scm (libtiff)[source]: Add patches.
author: Mark H Weaver <mhw@netris.org> 2015-06-16 00:59:15 -0400
committer: Mark H Weaver <mhw@netris.org> 2015-06-16 01:02:01 -0400
commit: 8e28d22c914122aa7bfb70847370d8ae0f070688 (patch)
tree: 14ffa1b7954a3f67c4057bc03ab35c993e98120f /gnu/packages
parent: 7d02724b7bddb4d5e1cc93db99f737baa26840ca (diff)
download: guix-8e28d22c914122aa7bfb70847370d8ae0f070688.tar.gz
20 files changed, 1903 insertions, 1 deletions
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 89590cc5ad..a7483ba94a 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -112,7 +112,26 @@ image files in PBMPLUS PPM/PGM, GIF, BMP, and Targa file formats.")
             (uri (string-append "ftp://ftp.remotesensing.org/pub/libtiff/tiff-"
                    version ".tar.gz"))
             (sha256 (base32
-                     "0wj8d1iwk9vnpax2h29xqc2hwknxg3s0ay2d5pxkg59ihbifn6pa"))))
+                     "0wj8d1iwk9vnpax2h29xqc2hwknxg3s0ay2d5pxkg59ihbifn6pa"))
+            (patches (map search-patch '("libtiff-CVE-2012-4564.patch"
+                                         "libtiff-CVE-2013-1960.patch"
+                                         "libtiff-CVE-2013-1961.patch"
+                                         "libtiff-CVE-2013-4231.patch"
+                                         "libtiff-CVE-2013-4232.patch"
+                                         "libtiff-CVE-2013-4244.patch"
+                                         "libtiff-CVE-2013-4243.patch"
+                                         "libtiff-CVE-2014-9330.patch"
+                                         "libtiff-CVE-2014-8127-pt1.patch"
+                                         "libtiff-CVE-2014-8127-pt2.patch"
+                                         "libtiff-CVE-2014-8127-pt3.patch"
+                                         "libtiff-CVE-2014-8127-pt4.patch"
+                                         "libtiff-CVE-2014-8128-pt1.patch"
+                                         "libtiff-CVE-2014-8128-pt2.patch"
+                                         "libtiff-CVE-2014-8128-pt3.patch"
+                                         "libtiff-CVE-2014-8129.patch"
+                                         "libtiff-CVE-2014-9655.patch"
+                                         "libtiff-CVE-2014-8128-pt4.patch"
+                                         "libtiff-CVE-2014-8128-pt5.patch")))))
    (build-system gnu-build-system)
    (inputs `(("zlib" ,zlib)
              ("libjpeg-8" ,libjpeg-8)))
diff --git a/gnu/packages/patches/libtiff-CVE-2012-4564.patch b/gnu/packages/patches/libtiff-CVE-2012-4564.patch
new file mode 100644
index 0000000000..472f9ca35f
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2012-4564.patch
@@ -0,0 +1,33 @@
+Copied from Debian
+
+Index: tiff-4.0.3/tools/ppm2tiff.c
+===================================================================
+--- tiff-4.0.3.orig/tools/ppm2tiff.c	2013-06-23 10:36:50.779629492 -0400
++++ tiff-4.0.3/tools/ppm2tiff.c	2013-06-23 10:36:50.775629494 -0400
+@@ -89,6 +89,7 @@
+ 	int c;
+ 	extern int optind;
+ 	extern char* optarg;
++	tmsize_t scanline_size;
+ 
+ 	if (argc < 2) {
+ 	    fprintf(stderr, "%s: Too few arguments\n", argv[0]);
+@@ -237,8 +238,16 @@
+ 	}
+ 	if (TIFFScanlineSize(out) > linebytes)
+ 		buf = (unsigned char *)_TIFFmalloc(linebytes);
+-	else
+-		buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
++	else {
++		scanline_size = TIFFScanlineSize(out);
++		if (scanline_size != 0)
++			buf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
++		else {
++			fprintf(stderr, "%s: scanline size overflow\n",infile);
++			(void) TIFFClose(out);
++			exit(-2);
++			}
++		}
+ 	if (resolution > 0) {
+ 		TIFFSetField(out, TIFFTAG_XRESOLUTION, resolution);
+ 		TIFFSetField(out, TIFFTAG_YRESOLUTION, resolution);
diff --git a/gnu/packages/patches/libtiff-CVE-2013-1960.patch b/gnu/packages/patches/libtiff-CVE-2013-1960.patch
new file mode 100644
index 0000000000..341063f25d
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2013-1960.patch
@@ -0,0 +1,148 @@
+Copied from Debian
+
+Index: tiff-4.0.3/tools/tiff2pdf.c
+===================================================================
+--- tiff-4.0.3.orig/tools/tiff2pdf.c	2013-06-23 10:36:50.979629486 -0400
++++ tiff-4.0.3/tools/tiff2pdf.c	2013-06-23 10:36:50.975629486 -0400
+@@ -3341,33 +3341,56 @@
+ 	uint32 height){
+ 
+ 	tsize_t i=0;
+-	uint16 ri =0;
+-	uint16 v_samp=1;
+-	uint16 h_samp=1;
+-	int j=0;
+-	
+-	i++;
+-	
+-	while(i<(*striplength)){
++
++	while (i < *striplength) {
++		tsize_t datalen;
++		uint16 ri;
++		uint16 v_samp;
++		uint16 h_samp;
++		int j;
++		int ncomp;
++
++		/* marker header: one or more FFs */
++		if (strip[i] != 0xff)
++			return(0);
++		i++;
++		while (i < *striplength && strip[i] == 0xff)
++			i++;
++		if (i >= *striplength)
++			return(0);
++		/* SOI is the only pre-SOS marker without a length word */
++		if (strip[i] == 0xd8)
++			datalen = 0;
++		else {
++			if ((*striplength - i) <= 2)
++				return(0);
++			datalen = (strip[i+1] << 8) | strip[i+2];
++			if (datalen < 2 || datalen >= (*striplength - i))
++				return(0);
++		}
+ 		switch( strip[i] ){
+-			case 0xd8:
+-				/* SOI - start of image */
++			case 0xd8:	/* SOI - start of image */
+ 				_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), 2);
+ 				*bufferoffset+=2;
+-				i+=2;
+ 				break;
+-			case 0xc0:
+-			case 0xc1:
+-			case 0xc3:
+-			case 0xc9:
+-			case 0xca:
++			case 0xc0:	/* SOF0 */
++			case 0xc1:	/* SOF1 */
++			case 0xc3:	/* SOF3 */
++			case 0xc9:	/* SOF9 */
++			case 0xca:	/* SOF10 */
+ 				if(no==0){
+-					_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
+-					for(j=0;j<buffer[*bufferoffset+9];j++){
+-						if( (buffer[*bufferoffset+11+(2*j)]>>4) > h_samp) 
+-							h_samp = (buffer[*bufferoffset+11+(2*j)]>>4);
+-						if( (buffer[*bufferoffset+11+(2*j)] & 0x0f) > v_samp) 
+-							v_samp = (buffer[*bufferoffset+11+(2*j)] & 0x0f);
++					_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
++					ncomp = buffer[*bufferoffset+9];
++					if (ncomp < 1 || ncomp > 4)
++						return(0);
++					v_samp=1;
++					h_samp=1;
++					for(j=0;j<ncomp;j++){
++						uint16 samp = buffer[*bufferoffset+11+(3*j)];
++						if( (samp>>4) > h_samp) 
++							h_samp = (samp>>4);
++						if( (samp & 0x0f) > v_samp) 
++							v_samp = (samp & 0x0f);
+ 					}
+ 					v_samp*=8;
+ 					h_samp*=8;
+@@ -3381,45 +3404,43 @@
+                                           (unsigned char) ((height>>8) & 0xff);
+ 					buffer[*bufferoffset+6]=
+                                             (unsigned char) (height & 0xff);
+-					*bufferoffset+=strip[i+2]+2;
+-					i+=strip[i+2]+2;
+-
++					*bufferoffset+=datalen+2;
++					/* insert a DRI marker */
+ 					buffer[(*bufferoffset)++]=0xff;
+ 					buffer[(*bufferoffset)++]=0xdd;
+ 					buffer[(*bufferoffset)++]=0x00;
+ 					buffer[(*bufferoffset)++]=0x04;
+ 					buffer[(*bufferoffset)++]=(ri >> 8) & 0xff;
+ 					buffer[(*bufferoffset)++]= ri & 0xff;
+-				} else {
+-					i+=strip[i+2]+2;
+ 				}
+ 				break;
+-			case 0xc4:
+-			case 0xdb:
+-				_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
+-				*bufferoffset+=strip[i+2]+2;
+-				i+=strip[i+2]+2;
++			case 0xc4: /* DHT */
++			case 0xdb: /* DQT */
++				_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
++				*bufferoffset+=datalen+2;
+ 				break;
+-			case 0xda:
++			case 0xda: /* SOS */
+ 				if(no==0){
+-					_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2);
+-					*bufferoffset+=strip[i+2]+2;
+-					i+=strip[i+2]+2;
++					_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2);
++					*bufferoffset+=datalen+2;
+ 				} else {
+ 					buffer[(*bufferoffset)++]=0xff;
+ 					buffer[(*bufferoffset)++]=
+                                             (unsigned char)(0xd0 | ((no-1)%8));
+-					i+=strip[i+2]+2;
+ 				}
+-				_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), (*striplength)-i-1);
+-				*bufferoffset+=(*striplength)-i-1;
++				i += datalen + 1;
++				/* copy remainder of strip */
++				_TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i]), *striplength - i);
++				*bufferoffset+= *striplength - i;
+ 				return(1);
+ 			default:
+-				i+=strip[i+2]+2;
++				/* ignore any other marker */
++				break;
+ 		}
++		i += datalen + 1;
+ 	}
+-	
+ 
++	/* failed to find SOS marker */
+ 	return(0);
+ }
+ #endif
diff --git a/gnu/packages/patches/libtiff-CVE-2013-1961.patch b/gnu/packages/patches/libtiff-CVE-2013-1961.patch
new file mode 100644
index 0000000000..9c2481ce83
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2013-1961.patch
@@ -0,0 +1,770 @@
+Copied from Debian
+
+Index: tiff-4.0.3/contrib/dbs/xtiff/xtiff.c
+===================================================================
+--- tiff-4.0.3.orig/contrib/dbs/xtiff/xtiff.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/contrib/dbs/xtiff/xtiff.c	2013-06-23 10:36:51.147629484 -0400
+@@ -512,9 +512,9 @@
+     Arg args[1];
+ 
+     if (tfMultiPage)
+-        sprintf(buffer, "%s - page %d", fileName, tfDirectory);
++        snprintf(buffer, sizeof(buffer), "%s - page %d", fileName, tfDirectory);
+     else
+-        strcpy(buffer, fileName);
++        snprintf(buffer, sizeof(buffer), "%s", fileName);
+     XtSetArg(args[0], XtNlabel, buffer);
+     XtSetValues(labelWidget, args, 1);
+ }
+Index: tiff-4.0.3/libtiff/tif_dirinfo.c
+===================================================================
+--- tiff-4.0.3.orig/libtiff/tif_dirinfo.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/libtiff/tif_dirinfo.c	2013-06-23 10:36:51.147629484 -0400
+@@ -711,7 +711,7 @@
+ 	 * note that this name is a special sign to TIFFClose() and
+ 	 * _TIFFSetupFields() to free the field
+ 	 */
+-	sprintf(fld->field_name, "Tag %d", (int) tag);
++	snprintf(fld->field_name, 32, "Tag %d", (int) tag);
+ 
+ 	return fld;    
+ }
+Index: tiff-4.0.3/libtiff/tif_codec.c
+===================================================================
+--- tiff-4.0.3.orig/libtiff/tif_codec.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/libtiff/tif_codec.c	2013-06-23 10:36:51.151629482 -0400
+@@ -108,7 +108,8 @@
+ 	const TIFFCodec* c = TIFFFindCODEC(tif->tif_dir.td_compression);
+         char compression_code[20];
+         
+-        sprintf( compression_code, "%d", tif->tif_dir.td_compression );
++        snprintf(compression_code, sizeof(compression_code), "%d",
++		 tif->tif_dir.td_compression );
+ 	TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
+                      "%s compression support is not configured", 
+                      c ? c->name : compression_code );
+Index: tiff-4.0.3/tools/tiffdither.c
+===================================================================
+--- tiff-4.0.3.orig/tools/tiffdither.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/tools/tiffdither.c	2013-06-23 10:36:51.151629482 -0400
+@@ -260,7 +260,7 @@
+ 		TIFFSetField(out, TIFFTAG_FILLORDER, fillorder);
+ 	else
+ 		CopyField(TIFFTAG_FILLORDER, shortv);
+-	sprintf(thing, "Dithered B&W version of %s", argv[optind]);
++	snprintf(thing, sizeof(thing), "Dithered B&W version of %s", argv[optind]);
+ 	TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, thing);
+ 	CopyField(TIFFTAG_PHOTOMETRIC, shortv);
+ 	CopyField(TIFFTAG_ORIENTATION, shortv);
+Index: tiff-4.0.3/tools/rgb2ycbcr.c
+===================================================================
+--- tiff-4.0.3.orig/tools/rgb2ycbcr.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/tools/rgb2ycbcr.c	2013-06-23 10:36:51.151629482 -0400
+@@ -332,7 +332,8 @@
+ 	TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
+ 	{ char buf[2048];
+ 	  char *cp = strrchr(TIFFFileName(in), '/');
+-	  sprintf(buf, "YCbCr conversion of %s", cp ? cp+1 : TIFFFileName(in));
++	  snprintf(buf, sizeof(buf), "YCbCr conversion of %s",
++		   cp ? cp+1 : TIFFFileName(in));
+ 	  TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, buf);
+ 	}
+ 	TIFFSetField(out, TIFFTAG_SOFTWARE, TIFFGetVersion());
+Index: tiff-4.0.3/tools/tiff2pdf.c
+===================================================================
+--- tiff-4.0.3.orig/tools/tiff2pdf.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/tools/tiff2pdf.c	2013-06-23 10:36:51.151629482 -0400
+@@ -3630,7 +3630,9 @@
+ 	char buffer[16];
+ 	int buflen=0;
+ 	
+-	buflen=sprintf(buffer, "%%PDF-%u.%u ", t2p->pdf_majorversion&0xff, t2p->pdf_minorversion&0xff);
++	buflen = snprintf(buffer, sizeof(buffer), "%%PDF-%u.%u ",
++			  t2p->pdf_majorversion&0xff,
++			  t2p->pdf_minorversion&0xff);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t)"\n%\342\343\317\323\n", 7);
+ 
+@@ -3644,10 +3646,10 @@
+ tsize_t t2p_write_pdf_obj_start(uint32 number, TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 
+-	buflen=sprintf(buffer, "%lu", (unsigned long)number);
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)number);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen );
+ 	written += t2pWriteFile(output, (tdata_t) " 0 obj\n", 7);
+ 
+@@ -3686,13 +3688,13 @@
+ 	written += t2pWriteFile(output, (tdata_t) "/", 1);
+ 	for (i=0;i<namelen;i++){
+ 		if ( ((unsigned char)name[i]) < 0x21){
+-			sprintf(buffer, "#%.2X", name[i]);
++			snprintf(buffer, sizeof(buffer), "#%.2X", name[i]);
+ 			buffer[sizeof(buffer) - 1] = '\0';
+ 			written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 			nextchar=1;
+ 		}
+ 		if ( ((unsigned char)name[i]) > 0x7E){
+-			sprintf(buffer, "#%.2X", name[i]);
++			snprintf(buffer, sizeof(buffer), "#%.2X", name[i]);
+ 			buffer[sizeof(buffer) - 1] = '\0';
+ 			written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 			nextchar=1;
+@@ -3700,57 +3702,57 @@
+ 		if (nextchar==0){
+ 			switch (name[i]){
+ 				case 0x23:
+-					sprintf(buffer, "#%.2X", name[i]);
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]);
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x25:
+-					sprintf(buffer, "#%.2X", name[i]);
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]);
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x28:
+-					sprintf(buffer, "#%.2X", name[i]);
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]);
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x29:
+-					sprintf(buffer, "#%.2X", name[i]); 
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); 
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x2F:
+-					sprintf(buffer, "#%.2X", name[i]); 
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); 
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x3C:
+-					sprintf(buffer, "#%.2X", name[i]); 
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); 
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x3E:
+-					sprintf(buffer, "#%.2X", name[i]);
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]);
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x5B:
+-					sprintf(buffer, "#%.2X", name[i]); 
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); 
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x5D:
+-					sprintf(buffer, "#%.2X", name[i]);
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]);
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x7B:
+-					sprintf(buffer, "#%.2X", name[i]); 
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); 
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+ 				case 0x7D:
+-					sprintf(buffer, "#%.2X", name[i]); 
++					snprintf(buffer, sizeof(buffer), "#%.2X", name[i]); 
+ 					buffer[sizeof(buffer) - 1] = '\0';
+ 					written += t2pWriteFile(output, (tdata_t) buffer, 3);
+ 					break;
+@@ -3865,14 +3867,14 @@
+ tsize_t t2p_write_pdf_stream_dict(tsize_t len, uint32 number, TIFF* output){
+ 	
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 	
+ 	written += t2pWriteFile(output, (tdata_t) "/Length ", 8);
+ 	if(len!=0){
+ 		written += t2p_write_pdf_stream_length(len, output);
+ 	} else {
+-		buflen=sprintf(buffer, "%lu", (unsigned long)number);
++		buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)number);
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " 0 R \n", 6);
+ 	}
+@@ -3913,10 +3915,10 @@
+ tsize_t t2p_write_pdf_stream_length(tsize_t len, TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 
+-	buflen=sprintf(buffer, "%lu", (unsigned long)len);
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)len);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) "\n", 1);
+ 
+@@ -3930,7 +3932,7 @@
+ tsize_t t2p_write_pdf_catalog(T2P* t2p, TIFF* output)
+ {
+ 	tsize_t written = 0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen = 0;
+ 
+ 	written += t2pWriteFile(output, 
+@@ -3969,7 +3971,6 @@
+ 		written += t2p_write_pdf_string(t2p->pdf_datetime, output);
+ 	}
+ 	written += t2pWriteFile(output, (tdata_t) "\n/Producer ", 11);
+-	_TIFFmemset((tdata_t)buffer, 0x00, sizeof(buffer));
+ 	snprintf(buffer, sizeof(buffer), "libtiff / tiff2pdf - %d", TIFFLIB_VERSION);
+ 	written += t2p_write_pdf_string(buffer, output);
+ 	written += t2pWriteFile(output, (tdata_t) "\n", 1);
+@@ -4110,7 +4111,7 @@
+ {
+ 	tsize_t written=0;
+ 	tdir_t i=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 
+ 	int page=0;
+@@ -4118,7 +4119,7 @@
+ 		(tdata_t) "<< \n/Type /Pages \n/Kids [ ", 26);
+ 	page = t2p->pdf_pages+1;
+ 	for (i=0;i<t2p->tiff_pagecount;i++){
+-		buflen=sprintf(buffer, "%d", page);
++		buflen=snprintf(buffer, sizeof(buffer), "%d", page);
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " 0 R ", 5);
+ 		if ( ((i+1)%8)==0 ) {
+@@ -4133,8 +4134,7 @@
+ 		}
+ 	}
+ 	written += t2pWriteFile(output, (tdata_t) "] \n/Count ", 10);
+-	_TIFFmemset(buffer, 0x00, 16);
+-	buflen=sprintf(buffer, "%d", t2p->tiff_pagecount);
++	buflen=snprintf(buffer, sizeof(buffer), "%d", t2p->tiff_pagecount);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) " \n>> \n", 6);
+ 
+@@ -4149,28 +4149,28 @@
+ 
+ 	unsigned int i=0;
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[256];
+ 	int buflen=0;
+ 
+ 	written += t2pWriteFile(output, (tdata_t) "<<\n/Type /Page \n/Parent ", 24);
+-	buflen=sprintf(buffer, "%lu", (unsigned long)t2p->pdf_pages);
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_pages);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) " 0 R \n", 6);
+ 	written += t2pWriteFile(output, (tdata_t) "/MediaBox [", 11); 
+-	buflen=sprintf(buffer, "%.4f",t2p->pdf_mediabox.x1);
++	buflen=snprintf(buffer, sizeof(buffer), "%.4f",t2p->pdf_mediabox.x1);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) " ", 1); 
+-	buflen=sprintf(buffer, "%.4f",t2p->pdf_mediabox.y1);
++	buflen=snprintf(buffer, sizeof(buffer), "%.4f",t2p->pdf_mediabox.y1);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) " ", 1); 
+-	buflen=sprintf(buffer, "%.4f",t2p->pdf_mediabox.x2);
++	buflen=snprintf(buffer, sizeof(buffer), "%.4f",t2p->pdf_mediabox.x2);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) " ", 1); 
+-	buflen=sprintf(buffer, "%.4f",t2p->pdf_mediabox.y2);
++	buflen=snprintf(buffer, sizeof(buffer), "%.4f",t2p->pdf_mediabox.y2);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) "] \n", 3); 
+ 	written += t2pWriteFile(output, (tdata_t) "/Contents ", 10);
+-	buflen=sprintf(buffer, "%lu", (unsigned long)(object + 1));
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)(object + 1));
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) " 0 R \n", 6);
+ 	written += t2pWriteFile(output, (tdata_t) "/Resources << \n", 15);
+@@ -4178,15 +4178,13 @@
+ 		written += t2pWriteFile(output, (tdata_t) "/XObject <<\n", 12);
+ 		for(i=0;i<t2p->tiff_tiles[t2p->pdf_page].tiles_tilecount;i++){
+ 			written += t2pWriteFile(output, (tdata_t) "/Im", 3);
+-			buflen = sprintf(buffer, "%u", t2p->pdf_page+1);
++			buflen = snprintf(buffer, sizeof(buffer), "%u", t2p->pdf_page+1);
+ 			written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 			written += t2pWriteFile(output, (tdata_t) "_", 1);
+-			buflen = sprintf(buffer, "%u", i+1);
++			buflen = snprintf(buffer, sizeof(buffer), "%u", i+1);
+ 			written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 			written += t2pWriteFile(output, (tdata_t) " ", 1);
+-			buflen = sprintf(
+-				buffer, 
+-				"%lu", 
++			buflen = snprintf(buffer, sizeof(buffer), "%lu",
+ 				(unsigned long)(object+3+(2*i)+t2p->tiff_pages[t2p->pdf_page].page_extra)); 
+ 			written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 			written += t2pWriteFile(output, (tdata_t) " 0 R ", 5);
+@@ -4198,12 +4196,10 @@
+ 	} else {
+ 			written += t2pWriteFile(output, (tdata_t) "/XObject <<\n", 12);
+ 			written += t2pWriteFile(output, (tdata_t) "/Im", 3);
+-			buflen = sprintf(buffer, "%u", t2p->pdf_page+1);
++			buflen = snprintf(buffer, sizeof(buffer), "%u", t2p->pdf_page+1);
+ 			written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 			written += t2pWriteFile(output, (tdata_t) " ", 1);
+-			buflen = sprintf(
+-				buffer, 
+-				"%lu", 
++			buflen = snprintf(buffer, sizeof(buffer), "%lu",
+ 				(unsigned long)(object+3+(2*i)+t2p->tiff_pages[t2p->pdf_page].page_extra)); 
+ 			written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 			written += t2pWriteFile(output, (tdata_t) " 0 R ", 5);
+@@ -4212,9 +4208,7 @@
+ 	if(t2p->tiff_transferfunctioncount != 0) {
+ 		written += t2pWriteFile(output, (tdata_t) "/ExtGState <<", 13);
+ 		t2pWriteFile(output, (tdata_t) "/GS1 ", 5);
+-		buflen = sprintf(
+-			buffer, 
+-			"%lu", 
++		buflen = snprintf(buffer, sizeof(buffer), "%lu",
+ 			(unsigned long)(object + 3)); 
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " 0 R ", 5);
+@@ -4587,7 +4581,7 @@
+ 	if(t2p->tiff_tiles[t2p->pdf_page].tiles_tilecount>0){ 
+ 		for(i=0;i<t2p->tiff_tiles[t2p->pdf_page].tiles_tilecount; i++){
+ 			box=t2p->tiff_tiles[t2p->pdf_page].tiles_tiles[i].tile_box;
+-			buflen=sprintf(buffer, 
++			buflen=snprintf(buffer, sizeof(buffer), 
+ 				"q %s %.4f %.4f %.4f %.4f %.4f %.4f cm /Im%d_%ld Do Q\n", 
+ 				t2p->tiff_transferfunctioncount?"/GS1 gs ":"",
+ 				box.mat[0],
+@@ -4602,7 +4596,7 @@
+ 		}
+ 	} else {
+ 		box=t2p->pdf_imagebox;
+-		buflen=sprintf(buffer, 
++		buflen=snprintf(buffer, sizeof(buffer), 
+ 			"q %s %.4f %.4f %.4f %.4f %.4f %.4f cm /Im%d Do Q\n", 
+ 			t2p->tiff_transferfunctioncount?"/GS1 gs ":"",
+ 			box.mat[0],
+@@ -4627,59 +4621,48 @@
+ 												TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 
+ 	written += t2p_write_pdf_stream_dict(0, t2p->pdf_xrefcount+1, output); 
+ 	written += t2pWriteFile(output, 
+ 		(tdata_t) "/Type /XObject \n/Subtype /Image \n/Name /Im", 
+ 		42);
+-	buflen=sprintf(buffer, "%u", t2p->pdf_page+1);
++	buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->pdf_page+1);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	if(tile != 0){
+ 		written += t2pWriteFile(output, (tdata_t) "_", 1);
+-		buflen=sprintf(buffer, "%lu", (unsigned long)tile);
++		buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)tile);
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	}
+ 	written += t2pWriteFile(output, (tdata_t) "\n/Width ", 8);
+-	_TIFFmemset((tdata_t)buffer, 0x00, 16);
+ 	if(tile==0){
+-		buflen=sprintf(buffer, "%lu", (unsigned long)t2p->tiff_width);
++		buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->tiff_width);
+ 	} else {
+ 		if(t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile-1)!=0){
+-			buflen=sprintf(
+-				buffer, 
+-				"%lu", 
++			buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 				(unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilewidth);
+ 		} else {
+-			buflen=sprintf(
+-				buffer, 
+-				"%lu", 
++			buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 				(unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth);
+ 		}
+ 	}
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) "\n/Height ", 9);
+-	_TIFFmemset((tdata_t)buffer, 0x00, 16);
+ 	if(tile==0){
+-		buflen=sprintf(buffer, "%lu", (unsigned long)t2p->tiff_length);
++		buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->tiff_length);
+ 	} else {
+ 		if(t2p_tile_is_bottom_edge(t2p->tiff_tiles[t2p->pdf_page], tile-1)!=0){
+-			buflen=sprintf(
+-				buffer, 
+-				"%lu", 
++			buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 				(unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilelength);
+ 		} else {
+-			buflen=sprintf(
+-				buffer, 
+-				"%lu", 
++			buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 				(unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength);
+ 		}
+ 	}
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) "\n/BitsPerComponent ", 19);
+-	_TIFFmemset((tdata_t)buffer, 0x00, 16);
+-	buflen=sprintf(buffer, "%u", t2p->tiff_bitspersample);
++	buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->tiff_bitspersample);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) "\n/ColorSpace ", 13);
+ 	written += t2p_write_pdf_xobject_cs(t2p, output);
+@@ -4723,11 +4706,10 @@
+ 		t2p->pdf_colorspace ^= T2P_CS_PALETTE;
+ 		written += t2p_write_pdf_xobject_cs(t2p, output);
+ 		t2p->pdf_colorspace |= T2P_CS_PALETTE;
+-		buflen=sprintf(buffer, "%u", (0x0001 << t2p->tiff_bitspersample)-1 );
++		buflen=snprintf(buffer, sizeof(buffer), "%u", (0x0001 << t2p->tiff_bitspersample)-1 );
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " ", 1);
+-		_TIFFmemset(buffer, 0x00, 16);
+-		buflen=sprintf(buffer, "%lu", (unsigned long)t2p->pdf_palettecs ); 
++		buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_palettecs ); 
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " 0 R ]\n", 7);
+ 		return(written);
+@@ -4761,10 +4743,10 @@
+ 			X_W /= Y_W;
+ 			Z_W /= Y_W;
+ 			Y_W = 1.0F;
+-			buflen=sprintf(buffer, "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W);
++			buflen=snprintf(buffer, sizeof(buffer), "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W);
+ 			written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 			written += t2pWriteFile(output, (tdata_t) "/Range ", 7);
+-			buflen=sprintf(buffer, "[%d %d %d %d] \n", 
++			buflen=snprintf(buffer, sizeof(buffer), "[%d %d %d %d] \n", 
+ 				t2p->pdf_labrange[0], 
+ 				t2p->pdf_labrange[1], 
+ 				t2p->pdf_labrange[2], 
+@@ -4780,26 +4762,26 @@
+ tsize_t t2p_write_pdf_transfer(T2P* t2p, TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 
+ 	written += t2pWriteFile(output, (tdata_t) "<< /Type /ExtGState \n/TR ", 25);
+ 	if(t2p->tiff_transferfunctioncount == 1){
+-		buflen=sprintf(buffer, "%lu",
++		buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 			       (unsigned long)(t2p->pdf_xrefcount + 1));
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " 0 R ", 5);
+ 	} else {
+ 		written += t2pWriteFile(output, (tdata_t) "[ ", 2);
+-		buflen=sprintf(buffer, "%lu",
++		buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 			       (unsigned long)(t2p->pdf_xrefcount + 1));
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " 0 R ", 5);
+-		buflen=sprintf(buffer, "%lu",
++		buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 			       (unsigned long)(t2p->pdf_xrefcount + 2));
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " 0 R ", 5);
+-		buflen=sprintf(buffer, "%lu",
++		buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 			       (unsigned long)(t2p->pdf_xrefcount + 3));
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) " 0 R ", 5);
+@@ -4821,7 +4803,7 @@
+ 	written += t2pWriteFile(output, (tdata_t) "/FunctionType 0 \n", 17);
+ 	written += t2pWriteFile(output, (tdata_t) "/Domain [0.0 1.0] \n", 19);
+ 	written += t2pWriteFile(output, (tdata_t) "/Range [0.0 1.0] \n", 18);
+-	buflen=sprintf(buffer, "/Size [%u] \n", (1<<t2p->tiff_bitspersample));
++	buflen=snprintf(buffer, sizeof(buffer), "/Size [%u] \n", (1<<t2p->tiff_bitspersample));
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) "/BitsPerSample 16 \n", 19);
+ 	written += t2p_write_pdf_stream_dict(((tsize_t)1)<<(t2p->tiff_bitspersample+1), 0, output);
+@@ -4848,7 +4830,7 @@
+ tsize_t t2p_write_pdf_xobject_calcs(T2P* t2p, TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[128];
++	char buffer[256];
+ 	int buflen=0;
+ 	
+ 	float X_W=0.0;
+@@ -4916,16 +4898,16 @@
+ 	written += t2pWriteFile(output, (tdata_t) "<< \n", 4);
+ 	if(t2p->pdf_colorspace & T2P_CS_CALGRAY){
+ 		written += t2pWriteFile(output, (tdata_t) "/WhitePoint ", 12);
+-		buflen=sprintf(buffer, "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W);
++		buflen=snprintf(buffer, sizeof(buffer), "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W);
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) "/Gamma 2.2 \n", 12);
+ 	}
+ 	if(t2p->pdf_colorspace & T2P_CS_CALRGB){
+ 		written += t2pWriteFile(output, (tdata_t) "/WhitePoint ", 12);
+-		buflen=sprintf(buffer, "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W);
++		buflen=snprintf(buffer, sizeof(buffer), "[%.4f %.4f %.4f] \n", X_W, Y_W, Z_W);
+ 		written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 		written += t2pWriteFile(output, (tdata_t) "/Matrix ", 8);
+-		buflen=sprintf(buffer, "[%.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f] \n", 
++		buflen=snprintf(buffer, sizeof(buffer), "[%.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f] \n", 
+ 			X_R, Y_R, Z_R, 
+ 			X_G, Y_G, Z_G, 
+ 			X_B, Y_B, Z_B); 
+@@ -4944,11 +4926,11 @@
+ tsize_t t2p_write_pdf_xobject_icccs(T2P* t2p, TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 	
+ 	written += t2pWriteFile(output, (tdata_t) "[/ICCBased ", 11);
+-	buflen=sprintf(buffer, "%lu", (unsigned long)t2p->pdf_icccs);
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_icccs);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) " 0 R] \n", 7);
+ 
+@@ -4958,11 +4940,11 @@
+ tsize_t t2p_write_pdf_xobject_icccs_dict(T2P* t2p, TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 	
+ 	written += t2pWriteFile(output, (tdata_t) "/N ", 3);
+-	buflen=sprintf(buffer, "%u \n", t2p->tiff_samplesperpixel);
++	buflen=snprintf(buffer, sizeof(buffer), "%u \n", t2p->tiff_samplesperpixel);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) "/Alternate ", 11);
+ 	t2p->pdf_colorspace ^= T2P_CS_ICCBASED;
+@@ -5027,7 +5009,7 @@
+ tsize_t t2p_write_pdf_xobject_stream_filter(ttile_t tile, T2P* t2p, TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[16];
++	char buffer[32];
+ 	int buflen=0;
+ 
+ 	if(t2p->pdf_compression==T2P_COMPRESS_NONE){
+@@ -5042,41 +5024,33 @@
+ 			written += t2pWriteFile(output, (tdata_t) "<< /K -1 ", 9);
+ 			if(tile==0){
+ 				written += t2pWriteFile(output, (tdata_t) "/Columns ", 9);
+-				buflen=sprintf(buffer, "%lu",
++				buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 					       (unsigned long)t2p->tiff_width);
+ 				written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				written += t2pWriteFile(output, (tdata_t) " /Rows ", 7);
+-				buflen=sprintf(buffer, "%lu",
++				buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 					       (unsigned long)t2p->tiff_length);
+ 				written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 			} else {
+ 				if(t2p_tile_is_right_edge(t2p->tiff_tiles[t2p->pdf_page], tile-1)==0){
+ 					written += t2pWriteFile(output, (tdata_t) "/Columns ", 9);
+-					buflen=sprintf(
+-						buffer, 
+-						"%lu", 
++					buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 						(unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_tilewidth);
+ 					written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				} else {
+ 					written += t2pWriteFile(output, (tdata_t) "/Columns ", 9);
+-					buflen=sprintf(
+-						buffer, 
+-						"%lu", 
++					buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 						(unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilewidth);
+ 					written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				}
+ 				if(t2p_tile_is_bottom_edge(t2p->tiff_tiles[t2p->pdf_page], tile-1)==0){
+ 					written += t2pWriteFile(output, (tdata_t) " /Rows ", 7);
+-					buflen=sprintf(
+-						buffer, 
+-						"%lu", 
++					buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 						(unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_tilelength);
+ 					written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				} else {
+ 					written += t2pWriteFile(output, (tdata_t) " /Rows ", 7);
+-					buflen=sprintf(
+-						buffer, 
+-						"%lu", 
++					buflen=snprintf(buffer, sizeof(buffer), "%lu",
+ 						(unsigned long)t2p->tiff_tiles[t2p->pdf_page].tiles_edgetilelength);
+ 					written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				}
+@@ -5103,21 +5077,17 @@
+ 			if(t2p->pdf_compressionquality%100){
+ 				written += t2pWriteFile(output, (tdata_t) "/DecodeParms ", 13);
+ 				written += t2pWriteFile(output, (tdata_t) "<< /Predictor ", 14);
+-				_TIFFmemset(buffer, 0x00, 16);
+-				buflen=sprintf(buffer, "%u", t2p->pdf_compressionquality%100);
++				buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->pdf_compressionquality%100);
+ 				written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				written += t2pWriteFile(output, (tdata_t) " /Columns ", 10);
+-				_TIFFmemset(buffer, 0x00, 16);
+-				buflen = sprintf(buffer, "%lu",
++				buflen = snprintf(buffer, sizeof(buffer), "%lu",
+ 						 (unsigned long)t2p->tiff_width);
+ 				written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				written += t2pWriteFile(output, (tdata_t) " /Colors ", 9);
+-				_TIFFmemset(buffer, 0x00, 16);
+-				buflen=sprintf(buffer, "%u", t2p->tiff_samplesperpixel);
++				buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->tiff_samplesperpixel);
+ 				written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				written += t2pWriteFile(output, (tdata_t) " /BitsPerComponent ", 19);
+-				_TIFFmemset(buffer, 0x00, 16);
+-				buflen=sprintf(buffer, "%u", t2p->tiff_bitspersample);
++				buflen=snprintf(buffer, sizeof(buffer), "%u", t2p->tiff_bitspersample);
+ 				written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 				written += t2pWriteFile(output, (tdata_t) ">>\n", 3);
+ 			}
+@@ -5137,16 +5107,16 @@
+ tsize_t t2p_write_pdf_xreftable(T2P* t2p, TIFF* output){
+ 
+ 	tsize_t written=0;
+-	char buffer[21];
++	char buffer[64];
+ 	int buflen=0;
+ 	uint32 i=0;
+ 
+ 	written += t2pWriteFile(output, (tdata_t) "xref\n0 ", 7);
+-	buflen=sprintf(buffer, "%lu", (unsigned long)(t2p->pdf_xrefcount + 1));
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)(t2p->pdf_xrefcount + 1));
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+ 	written += t2pWriteFile(output, (tdata_t) " \n0000000000 65535 f \n", 22);
+ 	for (i=0;i<t2p->pdf_xrefcount;i++){
+-		sprintf(buffer, "%.10lu 00000 n \n",
++		snprintf(buffer, sizeof(buffer), "%.10lu 00000 n \n",
+ 			(unsigned long)t2p->pdf_xrefoffsets[i]);
+ 		written += t2pWriteFile(output, (tdata_t) buffer, 20);
+ 	}
+@@ -5170,17 +5140,14 @@
+ 		snprintf(t2p->pdf_fileid + i, 9, "%.8X", rand());
+ 
+ 	written += t2pWriteFile(output, (tdata_t) "trailer\n<<\n/Size ", 17);
+-	buflen = sprintf(buffer, "%lu", (unsigned long)(t2p->pdf_xrefcount+1));
++	buflen = snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)(t2p->pdf_xrefcount+1));
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+-	_TIFFmemset(buffer, 0x00, 32);	
+ 	written += t2pWriteFile(output, (tdata_t) "\n/Root ", 7);
+-	buflen=sprintf(buffer, "%lu", (unsigned long)t2p->pdf_catalog);
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_catalog);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+-	_TIFFmemset(buffer, 0x00, 32);	
+ 	written += t2pWriteFile(output, (tdata_t) " 0 R \n/Info ", 12);
+-	buflen=sprintf(buffer, "%lu", (unsigned long)t2p->pdf_info);
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_info);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+-	_TIFFmemset(buffer, 0x00, 32);	
+ 	written += t2pWriteFile(output, (tdata_t) " 0 R \n/ID[<", 11);
+ 	written += t2pWriteFile(output, (tdata_t) t2p->pdf_fileid,
+ 				sizeof(t2p->pdf_fileid) - 1);
+@@ -5188,9 +5155,8 @@
+ 	written += t2pWriteFile(output, (tdata_t) t2p->pdf_fileid,
+ 				sizeof(t2p->pdf_fileid) - 1);
+ 	written += t2pWriteFile(output, (tdata_t) ">]\n>>\nstartxref\n", 16);
+-	buflen=sprintf(buffer, "%lu", (unsigned long)t2p->pdf_startxref);
++	buflen=snprintf(buffer, sizeof(buffer), "%lu", (unsigned long)t2p->pdf_startxref);
+ 	written += t2pWriteFile(output, (tdata_t) buffer, buflen);
+-	_TIFFmemset(buffer, 0x00, 32);	
+ 	written += t2pWriteFile(output, (tdata_t) "\n%%EOF\n", 7);
+ 
+ 	return(written);
+Index: tiff-4.0.3/tools/tiff2ps.c
+===================================================================
+--- tiff-4.0.3.orig/tools/tiff2ps.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/tools/tiff2ps.c	2013-06-23 10:36:51.155629481 -0400
+@@ -1781,8 +1781,8 @@
+ 		imageOp = "imagemask";
+ 
+ 	(void)strcpy(im_x, "0");
+-	(void)sprintf(im_y, "%lu", (long) h);
+-	(void)sprintf(im_h, "%lu", (long) h);
++	(void)snprintf(im_y, sizeof(im_y), "%lu", (long) h);
++	(void)snprintf(im_h, sizeof(im_h), "%lu", (long) h);
+ 	tile_width = w;
+ 	tile_height = h;
+ 	if (TIFFIsTiled(tif)) {
+@@ -1803,7 +1803,7 @@
+ 		}
+ 		if (tile_height < h) {
+ 			fputs("/im_y 0 def\n", fd);
+-			(void)sprintf(im_y, "%lu im_y sub", (unsigned long) h);
++			(void)snprintf(im_y, sizeof(im_y), "%lu im_y sub", (unsigned long) h);
+ 		}
+ 	} else {
+ 		repeat_count = tf_numberstrips;
+@@ -1815,7 +1815,7 @@
+ 			fprintf(fd, "/im_h %lu def\n",
+ 			    (unsigned long) tile_height);
+ 			(void)strcpy(im_h, "im_h");
+-			(void)sprintf(im_y, "%lu im_y sub", (unsigned long) h);
++			(void)snprintf(im_y, sizeof(im_y), "%lu im_y sub", (unsigned long) h);
+ 		}
+ 	}
+ 
+Index: tiff-4.0.3/tools/tiffcrop.c
+===================================================================
+--- tiff-4.0.3.orig/tools/tiffcrop.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/tools/tiffcrop.c	2013-06-23 10:36:51.159629481 -0400
+@@ -2077,7 +2077,7 @@
+         return 1;
+         }
+ 
+-      sprintf (filenum, "-%03d%s", findex, export_ext);
++      snprintf(filenum, sizeof(filenum), "-%03d%s", findex, export_ext);
+       filenum[14] = '\0';
+       strncat (exportname, filenum, 15);
+       }
+@@ -2230,8 +2230,8 @@
+ 
+           /* dump.infilename is guaranteed to be NUL termimated and have 20 bytes 
+              fewer than PATH_MAX */ 
+-          memset (temp_filename, '\0', PATH_MAX + 1);              
+-          sprintf (temp_filename, "%s-read-%03d.%s", dump.infilename, dump_images,
++          snprintf(temp_filename, sizeof(temp_filename), "%s-read-%03d.%s",
++		   dump.infilename, dump_images,
+                   (dump.format == DUMP_TEXT) ? "txt" : "raw");
+           if ((dump.infile = fopen(temp_filename, dump.mode)) == NULL)
+             {
+@@ -2249,8 +2249,8 @@
+ 
+           /* dump.outfilename is guaranteed to be NUL termimated and have 20 bytes 
+              fewer than PATH_MAX */ 
+-          memset (temp_filename, '\0', PATH_MAX + 1);              
+-          sprintf (temp_filename, "%s-write-%03d.%s", dump.outfilename, dump_images,
++          snprintf(temp_filename, sizeof(temp_filename), "%s-write-%03d.%s",
++		   dump.outfilename, dump_images,
+                   (dump.format == DUMP_TEXT) ? "txt" : "raw");
+           if ((dump.outfile = fopen(temp_filename, dump.mode)) == NULL)
+             {
+Index: tiff-4.0.3/tools/tiff2bw.c
+===================================================================
+--- tiff-4.0.3.orig/tools/tiff2bw.c	2013-06-23 10:36:51.163629483 -0400
++++ tiff-4.0.3/tools/tiff2bw.c	2013-06-23 10:36:51.159629481 -0400
+@@ -205,7 +205,7 @@
+ 		}
+ 	}
+ 	TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
+-	sprintf(thing, "B&W version of %s", argv[optind]);
++	snprintf(thing, sizeof(thing), "B&W version of %s", argv[optind]);
+ 	TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, thing);
+ 	TIFFSetField(out, TIFFTAG_SOFTWARE, "tiff2bw");
+ 	outbuf = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(out));
diff --git a/gnu/packages/patches/libtiff-CVE-2013-4231.patch b/gnu/packages/patches/libtiff-CVE-2013-4231.patch
new file mode 100644
index 0000000000..c71f7dac2e
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2013-4231.patch
@@ -0,0 +1,19 @@
+Copied from Debian
+
+Description: Buffer overflow in gif2tiff
+Bug: http://bugzilla.maptools.org/show_bug.cgi?id=2450
+Bug-Debian: http://bugs.debian.org/719303
+
+Index: tiff-4.0.3/tools/gif2tiff.c
+===================================================================
+--- tiff-4.0.3.orig/tools/gif2tiff.c	2013-08-22 11:46:11.960846910 -0400
++++ tiff-4.0.3/tools/gif2tiff.c	2013-08-22 11:46:11.956846910 -0400
+@@ -333,6 +333,8 @@
+     int status = 1;
+ 
+     datasize = getc(infile);
++    if (datasize > 12)
++	return 0;
+     clear = 1 << datasize;
+     eoi = clear + 1;
+     avail = clear + 2;
diff --git a/gnu/packages/patches/libtiff-CVE-2013-4232.patch b/gnu/packages/patches/libtiff-CVE-2013-4232.patch
new file mode 100644
index 0000000000..3a92f61fef
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2013-4232.patch
@@ -0,0 +1,20 @@
+Copied from Debian
+
+Description: use after free in tiff2pdf
+Bug: http://bugzilla.maptools.org/show_bug.cgi?id=2449
+Bug-Debian: http://bugs.debian.org/719303
+
+Index: tiff-4.0.3/tools/tiff2pdf.c
+===================================================================
+--- tiff-4.0.3.orig/tools/tiff2pdf.c	2013-08-22 11:46:37.292847242 -0400
++++ tiff-4.0.3/tools/tiff2pdf.c	2013-08-22 11:46:37.292847242 -0400
+@@ -2461,7 +2461,8 @@
+ 					(unsigned long) t2p->tiff_datasize, 
+ 					TIFFFileName(input));
+ 				t2p->t2p_error = T2P_ERR_ERROR;
+-			  _TIFFfree(buffer);
++				_TIFFfree(buffer);
++				return(0);
+ 			} else {
+ 				buffer=samplebuffer;
+ 				t2p->tiff_datasize *= t2p->tiff_samplesperpixel;
diff --git a/gnu/packages/patches/libtiff-CVE-2013-4243.patch b/gnu/packages/patches/libtiff-CVE-2013-4243.patch
new file mode 100644
index 0000000000..a10884cd89
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2013-4243.patch
@@ -0,0 +1,39 @@
+Copied from Debian
+
+Index: tiff/tools/gif2tiff.c
+===================================================================
+--- tiff.orig/tools/gif2tiff.c
++++ tiff/tools/gif2tiff.c
+@@ -280,6 +280,10 @@ readgifimage(char* mode)
+         fprintf(stderr, "no colormap present for image\n");
+         return (0);
+     }
++    if (width == 0 || height == 0) {
++        fprintf(stderr, "Invalid value of width or height\n");
++        return(0);
++    }
+     if ((raster = (unsigned char*) _TIFFmalloc(width*height+EXTRAFUDGE)) == NULL) {
+         fprintf(stderr, "not enough memory for image\n");
+         return (0);
+@@ -404,6 +408,10 @@ process(register int code, unsigned char
+             fprintf(stderr, "bad input: code=%d is larger than clear=%d\n",code, clear);
+             return 0;
+         }
++        if (*fill >= raster + width*height) {
++            fprintf(stderr, "raster full before eoi code\n");
++            return 0;
++        }
+ 	*(*fill)++ = suffix[code];
+ 	firstchar = oldcode = code;
+ 	return 1;
+@@ -434,6 +442,10 @@ process(register int code, unsigned char
+     }
+     oldcode = incode;
+     do {
++        if (*fill >= raster + width*height) {
++            fprintf(stderr, "raster full before eoi code\n");
++            return 0;
++        }
+ 	*(*fill)++ = *--stackp;
+     } while (stackp > stack);
+     return 1;
diff --git a/gnu/packages/patches/libtiff-CVE-2013-4244.patch b/gnu/packages/patches/libtiff-CVE-2013-4244.patch
new file mode 100644
index 0000000000..be9c65c311
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2013-4244.patch
@@ -0,0 +1,20 @@
+Copied from Debian
+
+Description: OOB write in gif2tiff
+Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=996468
+
+Index: tiff-4.0.3/tools/gif2tiff.c
+===================================================================
+--- tiff-4.0.3.orig/tools/gif2tiff.c	2013-08-24 11:17:13.546447901 -0400
++++ tiff-4.0.3/tools/gif2tiff.c	2013-08-24 11:17:13.546447901 -0400
+@@ -400,6 +400,10 @@
+     }
+ 
+     if (oldcode == -1) {
++        if (code >= clear) {
++            fprintf(stderr, "bad input: code=%d is larger than clear=%d\n",code, clear);
++            return 0;
++        }
+ 	*(*fill)++ = suffix[code];
+ 	firstchar = oldcode = code;
+ 	return 1;
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8127-pt1.patch b/gnu/packages/patches/libtiff-CVE-2014-8127-pt1.patch
new file mode 100644
index 0000000000..7f70edb86f
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8127-pt1.patch
@@ -0,0 +1,30 @@
+Copied from Debian
+
+From 0782c759084daaf9e4de7ee6be7543081823455e Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sun, 21 Dec 2014 20:58:29 +0000
+Subject: [PATCH] * tools/tiff2bw.c: when Photometric=RGB, the utility only
+ works if SamplesPerPixel = 3. Enforce that
+ http://bugzilla.maptools.org/show_bug.cgi?id=2485 (CVE-2014-8127)
+
+---
+ ChangeLog       | 6 ++++++
+ tools/tiff2bw.c | 5 +++++
+ 2 files changed, 11 insertions(+)
+
+diff --git a/tools/tiff2bw.c b/tools/tiff2bw.c
+index 22467cd..94b8e31 100644
+--- a/tools/tiff2bw.c
++++ b/tools/tiff2bw.c
+@@ -171,6 +171,11 @@ main(int argc, char* argv[])
+ 		    argv[optind], samplesperpixel);
+ 		return (-1);
+ 	}
++	if( photometric == PHOTOMETRIC_RGB && samplesperpixel != 3) {
++		fprintf(stderr, "%s: Bad samples/pixel %u for PHOTOMETRIC_RGB.\n",
++		    argv[optind], samplesperpixel);
++		return (-1);
++	}
+ 	TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bitspersample);
+ 	if (bitspersample != 8) {
+ 		fprintf(stderr,
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8127-pt2.patch b/gnu/packages/patches/libtiff-CVE-2014-8127-pt2.patch
new file mode 100644
index 0000000000..a177ebfa21
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8127-pt2.patch
@@ -0,0 +1,42 @@
+Copied from Debian
+
+From 3996fa0f84f4a8b7e65fe4b8f0681711022034ea Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sun, 21 Dec 2014 20:04:31 +0000
+Subject: [PATCH] * tools/pal2rgb.c, tools/thumbnail.c: fix crash by disabling
+ TIFFTAG_INKNAMES copying. The right fix would be to properly copy it, but not
+ worth the burden for those esoteric utilities.
+ http://bugzilla.maptools.org/show_bug.cgi?id=2484 (CVE-2014-8127)
+
+---
+ ChangeLog         | 7 +++++++
+ tools/pal2rgb.c   | 2 +-
+ tools/thumbnail.c | 2 +-
+ 3 files changed, 9 insertions(+), 2 deletions(-)
+
+diff --git a/tools/pal2rgb.c b/tools/pal2rgb.c
+index bfe7899..3fc3de3 100644
+--- a/tools/pal2rgb.c
++++ b/tools/pal2rgb.c
+@@ -372,7 +372,7 @@ static struct cpTag {
+     { TIFFTAG_CLEANFAXDATA,		1, TIFF_SHORT },
+     { TIFFTAG_CONSECUTIVEBADFAXLINES,	1, TIFF_LONG },
+     { TIFFTAG_INKSET,			1, TIFF_SHORT },
+-    { TIFFTAG_INKNAMES,			1, TIFF_ASCII },
++    /*{ TIFFTAG_INKNAMES,			1, TIFF_ASCII },*/ /* Needs much more complicated logic. See tiffcp */
+     { TIFFTAG_DOTRANGE,			2, TIFF_SHORT },
+     { TIFFTAG_TARGETPRINTER,		1, TIFF_ASCII },
+     { TIFFTAG_SAMPLEFORMAT,		1, TIFF_SHORT },
+diff --git a/tools/thumbnail.c b/tools/thumbnail.c
+index c50bbff..73f9c34 100644
+--- a/tools/thumbnail.c
++++ b/tools/thumbnail.c
+@@ -257,7 +257,7 @@ static struct cpTag {
+     { TIFFTAG_CLEANFAXDATA,		1, TIFF_SHORT },
+     { TIFFTAG_CONSECUTIVEBADFAXLINES,	1, TIFF_LONG },
+     { TIFFTAG_INKSET,			1, TIFF_SHORT },
+-    { TIFFTAG_INKNAMES,			1, TIFF_ASCII },
++    /*{ TIFFTAG_INKNAMES,			1, TIFF_ASCII },*/ /* Needs much more complicated logic. See tiffcp */
+     { TIFFTAG_DOTRANGE,			2, TIFF_SHORT },
+     { TIFFTAG_TARGETPRINTER,		1, TIFF_ASCII },
+     { TIFFTAG_SAMPLEFORMAT,		1, TIFF_SHORT },
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8127-pt3.patch b/gnu/packages/patches/libtiff-CVE-2014-8127-pt3.patch
new file mode 100644
index 0000000000..b8a3703c4c
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8127-pt3.patch
@@ -0,0 +1,45 @@
+Copied from Debian
+
+From 1f7359b00663804d96c3a102bcb6ead9812c1509 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Tue, 23 Dec 2014 10:15:35 +0000
+Subject: [PATCH] * libtiff/tif_read.c: fix several invalid comparisons of a
+ uint64 value with <= 0 by casting it to int64 first. This solves crashing bug
+ on corrupted images generated by afl.
+
+---
+ ChangeLog          | 6 ++++++
+ libtiff/tif_read.c | 6 +++---
+ 2 files changed, 9 insertions(+), 3 deletions(-)
+
+diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
+index 2ba822a..dfc5b07 100644
+--- a/libtiff/tif_read.c
++++ b/libtiff/tif_read.c
+@@ -458,7 +458,7 @@ TIFFReadRawStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
+ 		return ((tmsize_t)(-1));
+ 	}
+ 	bytecount = td->td_stripbytecount[strip];
+-	if (bytecount <= 0) {
++	if ((int64)bytecount <= 0) {
+ #if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
+ 		TIFFErrorExt(tif->tif_clientdata, module,
+ 			     "%I64u: Invalid strip byte count, strip %lu",
+@@ -498,7 +498,7 @@ TIFFFillStrip(TIFF* tif, uint32 strip)
+ 	if ((tif->tif_flags&TIFF_NOREADRAW)==0)
+ 	{
+ 		uint64 bytecount = td->td_stripbytecount[strip];
+-		if (bytecount <= 0) {
++		if ((int64)bytecount <= 0) {
+ #if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
+ 			TIFFErrorExt(tif->tif_clientdata, module,
+ 				"Invalid strip byte count %I64u, strip %lu",
+@@ -801,7 +801,7 @@ TIFFFillTile(TIFF* tif, uint32 tile)
+ 	if ((tif->tif_flags&TIFF_NOREADRAW)==0)
+ 	{
+ 		uint64 bytecount = td->td_stripbytecount[tile];
+-		if (bytecount <= 0) {
++		if ((int64)bytecount <= 0) {
+ #if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
+ 			TIFFErrorExt(tif->tif_clientdata, module,
+ 				"%I64u: Invalid tile byte count, tile %lu",
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8127-pt4.patch b/gnu/packages/patches/libtiff-CVE-2014-8127-pt4.patch
new file mode 100644
index 0000000000..62d903c650
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8127-pt4.patch
@@ -0,0 +1,295 @@
+Copied from Debian
+
+From 662f74445b2fea2eeb759c6524661118aef567ca Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sun, 21 Dec 2014 15:15:31 +0000
+Subject: [PATCH] Fix various crasher bugs on fuzzed images. *
+ libtiff/tif_dir.c: TIFFSetField(): refuse to set negative values for
+ TIFFTAG_XRESOLUTION and TIFFTAG_YRESOLUTION that cause asserts when writing
+ the directory * libtiff/tif_dirread.c: TIFFReadDirectory(): refuse to read
+ ColorMap or TransferFunction if BitsPerSample has not yet been read,
+ otherwise reading it later will cause user code to crash if BitsPerSample > 1
+ * libtiff/tif_getimage.c: TIFFRGBAImageOK(): return FALSE if LOGLUV with
+ SamplesPerPixel != 3, or if CIELAB with SamplesPerPixel != 3 or BitsPerSample
+ != 8 * libtiff/tif_next.c: in the "run mode", use tilewidth for tiled images
+ instead of imagewidth to avoid crash * tools/bmp2tiff.c: fix crash due to int
+ overflow related to input BMP dimensions * tools/tiff2pdf.c: fix crash due to
+ invalid tile count (should likely be checked by libtiff too). Detect invalid
+ settings of BitsPerSample/SamplesPerPixel for CIELAB / ITULAB *
+ tools/tiffcrop.c: fix crash due to invalid TileWidth/TileHeight *
+ tools/tiffdump.c: fix crash due to overflow of entry count.
+
+---
+ ChangeLog              | 19 +++++++++++++++++++
+ libtiff/tif_dir.c      | 21 +++++++++++++++++++--
+ libtiff/tif_dirread.c  | 17 +++++++++++++++++
+ libtiff/tif_getimage.c | 15 +++++++++++++++
+ libtiff/tif_next.c     |  2 ++
+ tools/bmp2tiff.c       | 15 +++++++++++++++
+ tools/tiff2pdf.c       | 41 +++++++++++++++++++++++++++++++++++++++++
+ tools/tiffcrop.c       |  7 ++++---
+ tools/tiffdump.c       |  9 ++++++---
+ 9 files changed, 138 insertions(+), 8 deletions(-)
+
+diff --git a/libtiff/tif_dir.c b/libtiff/tif_dir.c
+index 98cf66d..ab43a28 100644
+--- a/libtiff/tif_dir.c
++++ b/libtiff/tif_dir.c
+@@ -160,6 +160,7 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
+ 	TIFFDirectory* td = &tif->tif_dir;
+ 	int status = 1;
+ 	uint32 v32, i, v;
++    double dblval;
+ 	char* s;
+ 	const TIFFField *fip = TIFFFindField(tif, tag, TIFF_ANY);
+ 	uint32 standard_tag = tag;
+@@ -284,10 +285,16 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
+ 			setDoubleArrayOneValue(&td->td_smaxsamplevalue, va_arg(ap, double), td->td_samplesperpixel);
+ 		break;
+ 	case TIFFTAG_XRESOLUTION:
+-		td->td_xresolution = (float) va_arg(ap, double);
++        dblval = va_arg(ap, double);
++        if( dblval < 0 )
++            goto badvaluedouble;
++		td->td_xresolution = (float) dblval;
+ 		break;
+ 	case TIFFTAG_YRESOLUTION:
+-		td->td_yresolution = (float) va_arg(ap, double);
++        dblval = va_arg(ap, double);
++        if( dblval < 0 )
++            goto badvaluedouble;
++		td->td_yresolution = (float) dblval;
+ 		break;
+ 	case TIFFTAG_PLANARCONFIG:
+ 		v = (uint16) va_arg(ap, uint16_vap);
+@@ -694,6 +701,16 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
+ 		va_end(ap);
+         }
+ 	return (0);
++badvaluedouble:
++        {
++        const TIFFField* fip=TIFFFieldWithTag(tif,tag);
++        TIFFErrorExt(tif->tif_clientdata, module,
++             "%s: Bad value %f for \"%s\" tag",
++             tif->tif_name, dblval,
++             fip ? fip->field_name : "Unknown");
++        va_end(ap);
++        }
++    return (0);
+ }
+ 
+ /*
+diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c
+index 391c823..f66c9a7 100644
+--- a/libtiff/tif_dirread.c
++++ b/libtiff/tif_dirread.c
+@@ -3430,6 +3430,8 @@ TIFFReadDirectory(TIFF* tif)
+ 	const TIFFField* fip;
+ 	uint32 fii=FAILED_FII;
+         toff_t nextdiroff;
++    int bitspersample_read = FALSE;
++
+ 	tif->tif_diroff=tif->tif_nextdiroff;
+ 	if (!TIFFCheckDirOffset(tif,tif->tif_nextdiroff))
+ 		return 0;           /* last offset or bad offset (IFD looping) */
+@@ -3706,6 +3708,8 @@ TIFFReadDirectory(TIFF* tif)
+ 					}
+ 					if (!TIFFSetField(tif,dp->tdir_tag,value))
+ 						goto bad;
++                    if( dp->tdir_tag == TIFFTAG_BITSPERSAMPLE )
++                        bitspersample_read = TRUE;
+ 				}
+ 				break;
+ 			case TIFFTAG_SMINSAMPLEVALUE:
+@@ -3763,6 +3767,19 @@ TIFFReadDirectory(TIFF* tif)
+ 					uint32 countrequired;
+ 					uint32 incrementpersample;
+ 					uint16* value=NULL;
++                    /* It would be dangerous to instanciate those tag values */
++                    /* since if td_bitspersample has not yet been read (due to */
++                    /* unordered tags), it could be read afterwards with a */
++                    /* values greater than the default one (1), which may cause */
++                    /* crashes in user code */
++                    if( !bitspersample_read )
++                    {
++                        fip = TIFFFieldWithTag(tif,dp->tdir_tag);
++                        TIFFWarningExt(tif->tif_clientdata,module,
++                                       "Ignoring %s since BitsPerSample tag not found",
++                                       fip ? fip->field_name : "unknown tagname");
++                        continue;
++                    }
+ 					countpersample=(1L<<tif->tif_dir.td_bitspersample);
+ 					if ((dp->tdir_tag==TIFFTAG_TRANSFERFUNCTION)&&(dp->tdir_count==(uint64)countpersample))
+ 					{
+diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
+index 074d32a..396ad08 100644
+--- a/libtiff/tif_getimage.c
++++ b/libtiff/tif_getimage.c
+@@ -182,8 +182,23 @@ TIFFRGBAImageOK(TIFF* tif, char emsg[1024])
+ 				    "Planarconfiguration", td->td_planarconfig);
+ 				return (0);
+ 			}
++			if( td->td_samplesperpixel != 3 )
++            {
++                sprintf(emsg,
++                        "Sorry, can not handle image with %s=%d",
++                        "Samples/pixel", td->td_samplesperpixel);
++                return 0;
++            }
+ 			break;
+ 		case PHOTOMETRIC_CIELAB:
++            if( td->td_samplesperpixel != 3 || td->td_bitspersample != 8 )
++            {
++                sprintf(emsg,
++                        "Sorry, can not handle image with %s=%d and %s=%d",
++                        "Samples/pixel", td->td_samplesperpixel,
++                        "Bits/sample", td->td_bitspersample);
++                return 0;
++            }
+ 			break;
+ 		default:
+ 			sprintf(emsg, "Sorry, can not handle image with %s=%d",
+diff --git a/libtiff/tif_next.c b/libtiff/tif_next.c
+index 55e2537..a53c716 100644
+--- a/libtiff/tif_next.c
++++ b/libtiff/tif_next.c
+@@ -102,6 +102,8 @@ NeXTDecode(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s)
+ 		default: {
+ 			uint32 npixels = 0, grey;
+ 			uint32 imagewidth = tif->tif_dir.td_imagewidth;
++            if( isTiled(tif) )
++                imagewidth = tif->tif_dir.td_tilewidth;
+ 
+ 			/*
+ 			 * The scanline is composed of a sequence of constant
+diff --git a/tools/tiff2pdf.c b/tools/tiff2pdf.c
+index dfda963..f202b41 100644
+--- a/tools/tiff2pdf.c
++++ b/tools/tiff2pdf.c
+@@ -1167,6 +1167,15 @@ void t2p_read_tiff_init(T2P* t2p, TIFF* input){
+ 		if( (TIFFGetField(input, TIFFTAG_PLANARCONFIG, &xuint16) != 0)
+ 			&& (xuint16 == PLANARCONFIG_SEPARATE ) ){
+ 				TIFFGetField(input, TIFFTAG_SAMPLESPERPIXEL, &xuint16);
++                if( (t2p->tiff_tiles[i].tiles_tilecount % xuint16) != 0 )
++                {
++                    TIFFError(
++                        TIFF2PDF_MODULE, 
++                        "Invalid tile count, %s", 
++                        TIFFFileName(input));
++                    t2p->t2p_error = T2P_ERR_ERROR;
++                    return;
++                }
+ 				t2p->tiff_tiles[i].tiles_tilecount/= xuint16;
+ 		}
+ 		if( t2p->tiff_tiles[i].tiles_tilecount > 0){
+@@ -1552,6 +1561,22 @@ void t2p_read_tiff_data(T2P* t2p, TIFF* input){
+ #endif
+ 			break;
+ 		case PHOTOMETRIC_CIELAB:
++            if( t2p->tiff_samplesperpixel != 3){
++                TIFFError(
++                    TIFF2PDF_MODULE, 
++                    "Unsupported samplesperpixel = %d for CIELAB", 
++                    t2p->tiff_samplesperpixel);
++                t2p->t2p_error = T2P_ERR_ERROR;
++                return;
++            }
++            if( t2p->tiff_bitspersample != 8){
++                TIFFError(
++                    TIFF2PDF_MODULE, 
++                    "Invalid bitspersample = %d for CIELAB", 
++                    t2p->tiff_bitspersample);
++                t2p->t2p_error = T2P_ERR_ERROR;
++                return;
++            }
+ 			t2p->pdf_labrange[0]= -127;
+ 			t2p->pdf_labrange[1]= 127;
+ 			t2p->pdf_labrange[2]= -127;
+@@ -1567,6 +1592,22 @@ void t2p_read_tiff_data(T2P* t2p, TIFF* input){
+ 			t2p->pdf_colorspace=T2P_CS_LAB;
+ 			break;
+ 		case PHOTOMETRIC_ITULAB:
++            if( t2p->tiff_samplesperpixel != 3){
++                TIFFError(
++                    TIFF2PDF_MODULE, 
++                    "Unsupported samplesperpixel = %d for ITULAB", 
++                    t2p->tiff_samplesperpixel);
++                t2p->t2p_error = T2P_ERR_ERROR;
++                return;
++            }
++            if( t2p->tiff_bitspersample != 8){
++                TIFFError(
++                    TIFF2PDF_MODULE, 
++                    "Invalid bitspersample = %d for ITULAB", 
++                    t2p->tiff_bitspersample);
++                t2p->t2p_error = T2P_ERR_ERROR;
++                return;
++            }
+ 			t2p->pdf_labrange[0]=-85;
+ 			t2p->pdf_labrange[1]=85;
+ 			t2p->pdf_labrange[2]=-75;
+diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
+index f5530bb..4088463 100644
+--- a/tools/tiffcrop.c
++++ b/tools/tiffcrop.c
+@@ -1205,9 +1205,10 @@ static int writeBufferToContigTiles (TIFF* out, uint8* buf, uint32 imagelength,
+   tsize_t tilesize = TIFFTileSize(out);
+   unsigned char *tilebuf = NULL;
+ 
+-  TIFFGetField(out, TIFFTAG_TILELENGTH, &tl);
+-  TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw);
+-  TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps);
++  if( !TIFFGetField(out, TIFFTAG_TILELENGTH, &tl) ||
++      !TIFFGetField(out, TIFFTAG_TILEWIDTH, &tw) ||
++      !TIFFGetField(out, TIFFTAG_BITSPERSAMPLE, &bps) )
++      return 1;
+ 
+   tile_buffsize = tilesize;
+   if (tilesize < (tsize_t)(tl * tile_rowsize))
+diff --git a/tools/tiffdump.c b/tools/tiffdump.c
+index cf5d62f..8247765 100644
+--- a/tools/tiffdump.c
++++ b/tools/tiffdump.c
+@@ -374,6 +374,8 @@ ReadDirectory(int fd, unsigned int ix, uint64 off)
+ 		void* datamem;
+ 		uint64 dataoffset;
+ 		int datatruncated;
++        int datasizeoverflow;
++
+ 		tag = *(uint16*)dp;
+ 		if (swabflag)
+ 			TIFFSwabShort(&tag);
+@@ -412,13 +414,14 @@ ReadDirectory(int fd, unsigned int ix, uint64 off)
+ 		else
+ 			typewidth = datawidth[type];
+ 		datasize = count*typewidth;
++        datasizeoverflow = (typewidth > 0 && datasize / typewidth != count);
+ 		datafits = 1;
+ 		datamem = dp;
+ 		dataoffset = 0;
+ 		datatruncated = 0;
+ 		if (!bigtiff)
+ 		{
+-			if (datasize>4)
++			if (datasizeoverflow || datasize>4)
+ 			{
+ 				uint32 dataoffset32;
+ 				datafits = 0;
+@@ -432,7 +435,7 @@ ReadDirectory(int fd, unsigned int ix, uint64 off)
+ 		}
+ 		else
+ 		{
+-			if (datasize>8)
++			if (datasizeoverflow || datasize>8)
+ 			{
+ 				datafits = 0;
+ 				datamem = NULL;
+@@ -442,7 +445,7 @@ ReadDirectory(int fd, unsigned int ix, uint64 off)
+ 			}
+ 			dp += sizeof(uint64);
+ 		}
+-		if (datasize>0x10000)
++		if (datasizeoverflow || datasize>0x10000)
+ 		{
+ 			datatruncated = 1;
+ 			count = 0x10000/typewidth;
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8128-pt1.patch b/gnu/packages/patches/libtiff-CVE-2014-8128-pt1.patch
new file mode 100644
index 0000000000..fda018b7bb
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8128-pt1.patch
@@ -0,0 +1,32 @@
+Copied from Debian
+
+From 3206e0c752a62da1ae606867113ed3bf9bf73306 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sun, 21 Dec 2014 19:53:59 +0000
+Subject: [PATCH] * tools/thumbnail.c: fix out-of-buffer write
+ http://bugzilla.maptools.org/show_bug.cgi?id=2489 (CVE-2014-8128)
+
+---
+ ChangeLog         | 5 +++++
+ tools/thumbnail.c | 8 +++++++-
+ 2 files changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/tools/thumbnail.c b/tools/thumbnail.c
+index fab63f6..c50bbff 100644
+--- a/tools/thumbnail.c
++++ b/tools/thumbnail.c
+@@ -568,7 +568,13 @@ setImage1(const uint8* br, uint32 rw, uint32 rh)
+ 	    err -= limit;
+ 	    sy++;
+ 	    if (err >= limit)
+-		rows[nrows++] = br + bpr*sy;
++		{
++			/* We should perhaps error loudly, but I can't make sense of that */
++			/* code... */
++			if( nrows == 256 )
++				break;
++			rows[nrows++] = br + bpr*sy;
++		}
+ 	}
+ 	setrow(row, nrows, rows);
+ 	row += tnw;
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8128-pt2.patch b/gnu/packages/patches/libtiff-CVE-2014-8128-pt2.patch
new file mode 100644
index 0000000000..6f9ef85d14
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8128-pt2.patch
@@ -0,0 +1,83 @@
+Copied from Debian
+
+From 8b6e80fca434525497e5a31c3309a3bab5b3c1c8 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sun, 21 Dec 2014 18:52:42 +0000
+Subject: [PATCH] * tools/thumbnail.c, tools/tiffcmp.c: only read/write
+ TIFFTAG_GROUP3OPTIONS or TIFFTAG_GROUP4OPTIONS if compression is
+ COMPRESSION_CCITTFAX3 or COMPRESSION_CCITTFAX4
+ http://bugzilla.maptools.org/show_bug.cgi?id=2493 (CVE-2014-8128)
+
+---
+ ChangeLog         |  7 +++++++
+ tools/thumbnail.c | 21 ++++++++++++++++++++-
+ tools/tiffcmp.c   | 17 +++++++++++++++--
+ 3 files changed, 42 insertions(+), 3 deletions(-)
+
+diff --git a/tools/thumbnail.c b/tools/thumbnail.c
+index a98a881..fab63f6 100644
+--- a/tools/thumbnail.c
++++ b/tools/thumbnail.c
+@@ -274,7 +274,26 @@ cpTags(TIFF* in, TIFF* out)
+ {
+     struct cpTag *p;
+     for (p = tags; p < &tags[NTAGS]; p++)
+-	cpTag(in, out, p->tag, p->count, p->type);
++	{
++		/* Horrible: but TIFFGetField() expects 2 arguments to be passed */
++		/* if we request a tag that is defined in a codec, but that codec */
++		/* isn't used */
++		if( p->tag == TIFFTAG_GROUP3OPTIONS )
++		{
++			uint16 compression;
++			if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) ||
++				compression != COMPRESSION_CCITTFAX3 )
++				continue;
++		}
++		if( p->tag == TIFFTAG_GROUP4OPTIONS )
++		{
++			uint16 compression;
++			if( !TIFFGetField(in, TIFFTAG_COMPRESSION, &compression) ||
++				compression != COMPRESSION_CCITTFAX4 )
++				continue;
++		}
++		cpTag(in, out, p->tag, p->count, p->type);
++	}
+ }
+ #undef NTAGS
+ 
+diff --git a/tools/tiffcmp.c b/tools/tiffcmp.c
+index 508a461..d6392af 100644
+--- a/tools/tiffcmp.c
++++ b/tools/tiffcmp.c
+@@ -260,6 +260,7 @@ tiffcmp(TIFF* tif1, TIFF* tif2)
+ static int
+ cmptags(TIFF* tif1, TIFF* tif2)
+ {
++	uint16 compression1, compression2;
+ 	CmpLongField(TIFFTAG_SUBFILETYPE,	"SubFileType");
+ 	CmpLongField(TIFFTAG_IMAGEWIDTH,	"ImageWidth");
+ 	CmpLongField(TIFFTAG_IMAGELENGTH,	"ImageLength");
+@@ -276,8 +277,20 @@ cmptags(TIFF* tif1, TIFF* tif2)
+ 	CmpShortField(TIFFTAG_SAMPLEFORMAT,	"SampleFormat");
+ 	CmpFloatField(TIFFTAG_XRESOLUTION,	"XResolution");
+ 	CmpFloatField(TIFFTAG_YRESOLUTION,	"YResolution");
+-	CmpLongField(TIFFTAG_GROUP3OPTIONS,	"Group3Options");
+-	CmpLongField(TIFFTAG_GROUP4OPTIONS,	"Group4Options");
++	if( TIFFGetField(tif1, TIFFTAG_COMPRESSION, &compression1) &&
++		compression1 == COMPRESSION_CCITTFAX3 &&
++		TIFFGetField(tif2, TIFFTAG_COMPRESSION, &compression2) &&
++		compression2 == COMPRESSION_CCITTFAX3 )
++	{
++		CmpLongField(TIFFTAG_GROUP3OPTIONS,	"Group3Options");
++	}
++	if( TIFFGetField(tif1, TIFFTAG_COMPRESSION, &compression1) &&
++		compression1 == COMPRESSION_CCITTFAX4 &&
++		TIFFGetField(tif2, TIFFTAG_COMPRESSION, &compression2) &&
++		compression2 == COMPRESSION_CCITTFAX4 )
++	{
++		CmpLongField(TIFFTAG_GROUP4OPTIONS,	"Group4Options");
++	}
+ 	CmpShortField(TIFFTAG_RESOLUTIONUNIT,	"ResolutionUnit");
+ 	CmpShortField(TIFFTAG_PLANARCONFIG,	"PlanarConfiguration");
+ 	CmpLongField(TIFFTAG_ROWSPERSTRIP,	"RowsPerStrip");
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8128-pt3.patch b/gnu/packages/patches/libtiff-CVE-2014-8128-pt3.patch
new file mode 100644
index 0000000000..200af0ef8b
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8128-pt3.patch
@@ -0,0 +1,34 @@
+Copied from Debian
+
+From 266bc48054b018a2f1d74562aa48eb2f509436d5 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sun, 21 Dec 2014 17:36:36 +0000
+Subject: [PATCH] * tools/tiff2pdf.c: check return code of TIFFGetField() when
+ reading TIFFTAG_SAMPLESPERPIXEL
+
+---
+ ChangeLog        |  5 +++++
+ tools/tiff2pdf.c | 10 +++++++++-
+ 2 files changed, 14 insertions(+), 1 deletion(-)
+
+Index: tiff-4.0.3/tools/tiff2pdf.c
+===================================================================
+--- tiff-4.0.3.orig/tools/tiff2pdf.c
++++ tiff-4.0.3/tools/tiff2pdf.c
+@@ -1164,7 +1164,15 @@ void t2p_read_tiff_init(T2P* t2p, TIFF*
+ 			t2p->tiff_pages[i].page_tilecount;
+ 		if( (TIFFGetField(input, TIFFTAG_PLANARCONFIG, &xuint16) != 0)
+ 			&& (xuint16 == PLANARCONFIG_SEPARATE ) ){
+-				TIFFGetField(input, TIFFTAG_SAMPLESPERPIXEL, &xuint16);
++				if( !TIFFGetField(input, TIFFTAG_SAMPLESPERPIXEL, &xuint16) )
++				{
++					TIFFError(
++                        TIFF2PDF_MODULE, 
++                        "Missing SamplesPerPixel, %s", 
++                        TIFFFileName(input));
++                    t2p->t2p_error = T2P_ERR_ERROR;
++                    return;
++				}
+                 if( (t2p->tiff_tiles[i].tiles_tilecount % xuint16) != 0 )
+                 {
+                     TIFFError(
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch b/gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch
new file mode 100644
index 0000000000..fda4045504
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch
@@ -0,0 +1,77 @@
+Copied from Debian
+
+Picked from CVE: diff -u -r1.14 -r1.15
+http://bugzilla.maptools.org/show_bug.cgi?id=2501
+
+Author: Even Rouault <even.rouault@spatialys.com>
+
+--- tiff-4.0.3.orig/tools/tiffdither.c
++++ tiff-4.0.3/tools/tiffdither.c
+@@ -39,6 +39,7 @@
+ #endif
+ 
+ #include "tiffio.h"
++#include "tiffiop.h"
+ 
+ #define	streq(a,b)	(strcmp(a,b) == 0)
+ #define	strneq(a,b,n)	(strncmp(a,b,n) == 0)
+@@ -56,7 +57,7 @@ static	void usage(void);
+  * Floyd-Steinberg error propragation with threshold.
+  * This code is stolen from tiffmedian.
+  */
+-static void
++static int
+ fsdither(TIFF* in, TIFF* out)
+ {
+ 	unsigned char *outline, *inputline, *inptr;
+@@ -68,14 +69,19 @@ fsdither(TIFF* in, TIFF* out)
+ 	int lastline, lastpixel;
+ 	int bit;
+ 	tsize_t outlinesize;
++	int errcode = 0;
+ 
+ 	imax = imagelength - 1;
+ 	jmax = imagewidth - 1;
+ 	inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in));
+-	thisline = (short *)_TIFFmalloc(imagewidth * sizeof (short));
+-	nextline = (short *)_TIFFmalloc(imagewidth * sizeof (short));
++	thisline = (short *)_TIFFmalloc(TIFFSafeMultiply(tmsize_t, imagewidth, sizeof (short)));
++	nextline = (short *)_TIFFmalloc(TIFFSafeMultiply(tmsize_t, imagewidth, sizeof (short)));
+ 	outlinesize = TIFFScanlineSize(out);
+ 	outline = (unsigned char *) _TIFFmalloc(outlinesize);
++	if (! (inputline && thisline && nextline && outline)) {
++	    fprintf(stderr, "Out of memory.\n");
++	    goto skip_on_error;
++	}
+ 
+ 	/*
+ 	 * Get first line
+@@ -93,7 +99,7 @@ fsdither(TIFF* in, TIFF* out)
+ 		nextline = tmpptr;
+ 		lastline = (i == imax);
+ 		if (TIFFReadScanline(in, inputline, i, 0) <= 0)
+-			break;
++			goto skip_on_error;
+ 		inptr = inputline;
+ 		nextptr = nextline;
+ 		for (j = 0; j < imagewidth; ++j)
+@@ -131,13 +137,18 @@ fsdither(TIFF* in, TIFF* out)
+ 			}
+ 		}
+ 		if (TIFFWriteScanline(out, outline, i-1, 0) < 0)
+-			break;
++			goto skip_on_error;
+ 	}
++	goto exit_label;
++
+   skip_on_error:
++	errcode = 1;
++  exit_label:
+ 	_TIFFfree(inputline);
+ 	_TIFFfree(thisline);
+ 	_TIFFfree(nextline);
+ 	_TIFFfree(outline);
++	return errcode;
+ }
+ 
+ static	uint16 compression = COMPRESSION_PACKBITS;
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8128-pt5.patch b/gnu/packages/patches/libtiff-CVE-2014-8128-pt5.patch
new file mode 100644
index 0000000000..a555a18747
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8128-pt5.patch
@@ -0,0 +1,16 @@
+Copied from Debian
+
+Patches by Petr Gajdos (pgajdos@suse.cz) from
+http://bugzilla.maptools.org/show_bug.cgi?id=2499
+
+--- tiff-4.0.3.orig/libtiff/tif_dirinfo.c
++++ tiff-4.0.3/libtiff/tif_dirinfo.c
+@@ -141,6 +141,8 @@ tiffFields[] = {
+ 	{ TIFFTAG_FAXDCS, -1, -1, TIFF_ASCII, 0, TIFF_SETGET_ASCII, TIFF_SETGET_ASCII, FIELD_CUSTOM, TRUE, FALSE, "FaxDcs", NULL },
+ 	{ TIFFTAG_STONITS, 1, 1, TIFF_DOUBLE, 0, TIFF_SETGET_DOUBLE, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "StoNits", NULL },
+ 	{ TIFFTAG_INTEROPERABILITYIFD, 1, 1, TIFF_IFD8, 0, TIFF_SETGET_UNDEFINED, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "InteroperabilityIFDOffset", NULL },
++	{ TIFFTAG_CONSECUTIVEBADFAXLINES, 1, 1, TIFF_LONG, 0, TIFF_SETGET_UINT32, TIFF_SETGET_UINT32, FIELD_CUSTOM, TRUE, FALSE, "ConsecutiveBadFaxLines", NULL },
++        { TIFFTAG_PREDICTOR, 1, 1, TIFF_SHORT, 0, TIFF_SETGET_UINT16, TIFF_SETGET_UINT16, FIELD_CUSTOM, FALSE, FALSE, "Predictor", NULL },
+ 	/* begin DNG tags */
+ 	{ TIFFTAG_DNGVERSION, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DNGVersion", NULL },
+ 	{ TIFFTAG_DNGBACKWARDVERSION, 4, 4, TIFF_BYTE, 0, TIFF_SETGET_C0_UINT8, TIFF_SETGET_UNDEFINED, FIELD_CUSTOM, 0, 0, "DNGBackwardVersion", NULL },
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8129.patch b/gnu/packages/patches/libtiff-CVE-2014-8129.patch
new file mode 100644
index 0000000000..091ec8f573
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-8129.patch
@@ -0,0 +1,45 @@
+Copied from Debian
+
+From cd82b5267ad4c10eb91e4ee8a716a81362cf851c Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sun, 21 Dec 2014 18:07:48 +0000
+Subject: [PATCH] * libtiff/tif_next.c: check that BitsPerSample = 2. Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2487 (CVE-2014-8129)
+
+---
+ ChangeLog          |  5 +++++
+ libtiff/tif_next.c | 17 +++++++++++++++++
+ 2 files changed, 22 insertions(+)
+
+diff --git a/libtiff/tif_next.c b/libtiff/tif_next.c
+index a53c716..d834196 100644
+--- a/libtiff/tif_next.c
++++ b/libtiff/tif_next.c
+@@ -141,10 +141,27 @@ NeXTDecode(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s)
+ 	return (0);
+ }
+ 
++static int
++NeXTPreDecode(TIFF* tif, uint16 s)
++{
++	static const char module[] = "NeXTPreDecode";
++	TIFFDirectory *td = &tif->tif_dir;
++	(void)s;
++
++	if( td->td_bitspersample != 2 )
++	{
++		TIFFErrorExt(tif->tif_clientdata, module, "Unsupported BitsPerSample = %d",
++					 td->td_bitspersample);
++		return (0);
++	}
++	return (1);
++}
++	
+ int
+ TIFFInitNeXT(TIFF* tif, int scheme)
+ {
+ 	(void) scheme;
++	tif->tif_predecode = NeXTPreDecode;  
+ 	tif->tif_decoderow = NeXTDecode;  
+ 	tif->tif_decodestrip = NeXTDecode;  
+ 	tif->tif_decodetile = NeXTDecode;
diff --git a/gnu/packages/patches/libtiff-CVE-2014-9330.patch b/gnu/packages/patches/libtiff-CVE-2014-9330.patch
new file mode 100644
index 0000000000..c3c5fc0367
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-9330.patch
@@ -0,0 +1,47 @@
+Copied from Debian
+
+Description: CVE-2014-9330
+ Integer overflow in bmp2tiff
+Origin: upstream, http://bugzilla.maptools.org/show_bug.cgi?id=2494
+Bug: http://bugzilla.maptools.org/show_bug.cgi?id=2494
+Bug-Debian: http://bugs.debian.org/773987
+
+Index: tiff/tools/bmp2tiff.c
+===================================================================
+--- tiff.orig/tools/bmp2tiff.c
++++ tiff/tools/bmp2tiff.c
+@@ -1,4 +1,4 @@
+-/* $Id: bmp2tiff.c,v 1.23 2010-03-10 18:56:49 bfriesen Exp $
++/* $Id: bmp2tiff.c,v 1.24 2014-12-21 15:15:32 erouault Exp $
+  *
+  * Project:  libtiff tools
+  * Purpose:  Convert Windows BMP files in TIFF.
+@@ -403,6 +403,13 @@ main(int argc, char* argv[])
+ 
+ 		width = info_hdr.iWidth;
+ 		length = (info_hdr.iHeight > 0) ? info_hdr.iHeight : -info_hdr.iHeight;
++        if( width <= 0 || length <= 0 )
++        {
++            TIFFError(infilename,
++                  "Invalid dimensions of BMP file" );
++            close(fd);
++            return -1;
++        }
+ 
+ 		switch (info_hdr.iBitCount)
+ 		{
+@@ -593,6 +600,14 @@ main(int argc, char* argv[])
+ 
+ 			compr_size = file_hdr.iSize - file_hdr.iOffBits;
+ 			uncompr_size = width * length;
++            /* Detect int overflow */
++            if( uncompr_size / width != length )
++            {
++                TIFFError(infilename,
++                    "Invalid dimensions of BMP file" );
++                close(fd);
++                return -1;
++            }
+ 			comprbuf = (unsigned char *) _TIFFmalloc( compr_size );
+ 			if (!comprbuf) {
+ 				TIFFError(infilename,
diff --git a/gnu/packages/patches/libtiff-CVE-2014-9655.patch b/gnu/packages/patches/libtiff-CVE-2014-9655.patch
new file mode 100644
index 0000000000..065804d03a
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2014-9655.patch
@@ -0,0 +1,88 @@
+Copied from Debian
+
+From 40a5955cbf0df62b1f9e9bd7d9657b0070725d19 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Mon, 29 Dec 2014 12:09:11 +0000
+Subject: [PATCH] * libtiff/tif_next.c: add new tests to check that we don't
+ read outside of the compressed input stream buffer.
+
+* libtiff/tif_getimage.c: in OJPEG case, fix checks on strile width/height
+---
+ ChangeLog              |  9 +++++++++
+ libtiff/tif_getimage.c | 12 +++++++-----
+ libtiff/tif_next.c     |  4 +++-
+ 3 files changed, 19 insertions(+), 6 deletions(-)
+
+diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
+index a4f46d9..3ad8ee7 100644
+--- a/libtiff/tif_getimage.c
++++ b/libtiff/tif_getimage.c
+@@ -1871,7 +1871,7 @@ DECLAREContigPutFunc(putcontig8bitYCbCr42tile)
+ 
+     (void) y;
+     fromskew = (fromskew * 10) / 4;
+-    if ((h & 3) == 0 && (w & 1) == 0) {
++    if ((w & 3) == 0 && (h & 1) == 0) {
+         for (; h >= 2; h -= 2) {
+             x = w>>2;
+             do {
+@@ -1948,7 +1948,7 @@ DECLAREContigPutFunc(putcontig8bitYCbCr41tile)
+     /* XXX adjust fromskew */
+     do {
+ 	x = w>>2;
+-	do {
++	while(x>0) {
+ 	    int32 Cb = pp[4];
+ 	    int32 Cr = pp[5];
+ 
+@@ -1959,7 +1959,8 @@ DECLAREContigPutFunc(putcontig8bitYCbCr41tile)
+ 
+ 	    cp += 4;
+ 	    pp += 6;
+-	} while (--x);
++		x--;
++	}
+ 
+         if( (w&3) != 0 )
+         {
+@@ -2050,7 +2051,7 @@ DECLAREContigPutFunc(putcontig8bitYCbCr21tile)
+ 	fromskew = (fromskew * 4) / 2;
+ 	do {
+ 		x = w>>1;
+-		do {
++		while(x>0) {
+ 			int32 Cb = pp[2];
+ 			int32 Cr = pp[3];
+ 
+@@ -2059,7 +2060,8 @@ DECLAREContigPutFunc(putcontig8bitYCbCr21tile)
+ 
+ 			cp += 2;
+ 			pp += 4;
+-		} while (--x);
++			x --;
++		}
+ 
+ 		if( (w&1) != 0 )
+ 		{
+diff --git a/libtiff/tif_next.c b/libtiff/tif_next.c
+index d834196..dd669cc 100644
+--- a/libtiff/tif_next.c
++++ b/libtiff/tif_next.c
+@@ -71,7 +71,7 @@ NeXTDecode(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s)
+ 		TIFFErrorExt(tif->tif_clientdata, module, "Fractional scanlines cannot be read");
+ 		return (0);
+ 	}
+-	for (row = buf; occ > 0; occ -= scanline, row += scanline) {
++	for (row = buf; cc > 0 && occ > 0; occ -= scanline, row += scanline) {
+ 		n = *bp++, cc--;
+ 		switch (n) {
+ 		case LITERALROW:
+@@ -90,6 +90,8 @@ NeXTDecode(TIFF* tif, uint8* buf, tmsize_t occ, uint16 s)
+ 			 * The scanline has a literal span that begins at some
+ 			 * offset.
+ 			 */
++			if( cc < 4 )
++				goto bad;
+ 			off = (bp[0] * 256) + bp[1];
+ 			n = (bp[2] * 256) + bp[3];
+ 			if (cc < 4+n || off+n > scanline)
author	Mark H Weaver <mhw@netris.org>	2015-06-16 00:59:15 -0400
committer	Mark H Weaver <mhw@netris.org>	2015-06-16 01:02:01 -0400
commit	8e28d22c914122aa7bfb70847370d8ae0f070688 (patch)
tree	14ffa1b7954a3f67c4057bc03ab35c993e98120f /gnu/packages
parent	7d02724b7bddb4d5e1cc93db99f737baa26840ca (diff)
download	guix-8e28d22c914122aa7bfb70847370d8ae0f070688.tar.gz