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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.
master
Mark H Weaver 2015-06-16 00:59:15 -04:00
parent 7d02724b7b
commit 8e28d22c91
21 changed files with 1922 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
gnu-system.am
View File

@ -472,6 +472,25 @@ dist_patch_DATA = \
gnu/packages/patches/liboop-mips64-deplibs-fix.patch \
gnu/packages/patches/libmad-mips-newgcc.patch \
gnu/packages/patches/libtheora-config-guess.patch \
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 \
gnu/packages/patches/libtool-skip-tests2.patch \
gnu/packages/patches/libssh-CVE-2014-0017.patch \
gnu/packages/patches/libvpx-fix-armhf-link.patch \

21
gnu/packages/image.scm
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@ -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)))

33
gnu/packages/patches/libtiff-CVE-2012-4564.patch Normal file
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@ -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);

148
gnu/packages/patches/libtiff-CVE-2013-1960.patch Normal file
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@ -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

770
gnu/packages/patches/libtiff-CVE-2013-1961.patch Normal file
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@ -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));

19
gnu/packages/patches/libtiff-CVE-2013-4231.patch Normal file
View File

@ -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;

20
gnu/packages/patches/libtiff-CVE-2013-4232.patch Normal file
View File

@ -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;

39
gnu/packages/patches/libtiff-CVE-2013-4243.patch Normal file
View File

@ -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;

20
gnu/packages/patches/libtiff-CVE-2013-4244.patch Normal file
View File

@ -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;

30
gnu/packages/patches/libtiff-CVE-2014-8127-pt1.patch Normal file
View File

@ -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,

42
gnu/packages/patches/libtiff-CVE-2014-8127-pt2.patch Normal file
View File

@ -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 },

45
gnu/packages/patches/libtiff-CVE-2014-8127-pt3.patch Normal file
View File

@ -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",

295
gnu/packages/patches/libtiff-CVE-2014-8127-pt4.patch Normal file
View File

@ -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;

32
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@ -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;

83
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@ -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");

34
gnu/packages/patches/libtiff-CVE-2014-8128-pt3.patch Normal file
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@ -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(

77
gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch Normal file
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@ -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;

16
gnu/packages/patches/libtiff-CVE-2014-8128-pt5.patch Normal file
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@ -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 },

45
gnu/packages/patches/libtiff-CVE-2014-8129.patch Normal file
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@ -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;

47
gnu/packages/patches/libtiff-CVE-2014-9330.patch Normal file
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@ -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,

88
gnu/packages/patches/libtiff-CVE-2014-9655.patch Normal file
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@ -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)