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|
diff --git a/third_party/libtiff/tif_dir.c b/third_party/libtiff/tif_dir.c
index 81b849374..72148411f 100644
--- a/third_party/libtiff/tif_dir.c
+++ b/third_party/libtiff/tif_dir.c
@@ -31,6 +31,7 @@
* (and also some miscellaneous stuff)
*/
#include "tiffiop.h"
+#include <float.h>
/*
* These are used in the backwards compatibility code...
@@ -154,6 +155,15 @@ bad:
return (0);
}
+static float TIFFClampDoubleToFloat( double val )
+{
+ if( val > FLT_MAX )
+ return FLT_MAX;
+ if( val < -FLT_MAX )
+ return -FLT_MAX;
+ return (float)val;
+}
+
static int
_TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
{
@@ -312,13 +322,13 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
dblval = va_arg(ap, double);
if( dblval < 0 )
goto badvaluedouble;
- td->td_xresolution = (float) dblval;
+ td->td_xresolution = TIFFClampDoubleToFloat( dblval );
break;
case TIFFTAG_YRESOLUTION:
dblval = va_arg(ap, double);
if( dblval < 0 )
goto badvaluedouble;
- td->td_yresolution = (float) dblval;
+ td->td_yresolution = TIFFClampDoubleToFloat( dblval );
break;
case TIFFTAG_PLANARCONFIG:
v = (uint16) va_arg(ap, uint16_vap);
@@ -327,10 +337,10 @@ _TIFFVSetField(TIFF* tif, uint32 tag, va_list ap)
td->td_planarconfig = (uint16) v;
break;
case TIFFTAG_XPOSITION:
- td->td_xposition = (float) va_arg(ap, double);
+ td->td_xposition = TIFFClampDoubleToFloat( va_arg(ap, double) );
break;
case TIFFTAG_YPOSITION:
- td->td_yposition = (float) va_arg(ap, double);
+ td->td_yposition = TIFFClampDoubleToFloat( va_arg(ap, double) );
break;
case TIFFTAG_RESOLUTIONUNIT:
v = (uint16) va_arg(ap, uint16_vap);
diff --git a/third_party/libtiff/tif_dirread.c b/third_party/libtiff/tif_dirread.c
index 7dbcf6d86..0926e1625 100644
--- a/third_party/libtiff/tif_dirread.c
+++ b/third_party/libtiff/tif_dirread.c
@@ -40,6 +40,7 @@
*/
#include "tiffiop.h"
+#include <float.h>
#define IGNORE 0 /* tag placeholder used below */
#define FAILED_FII ((uint32) -1)
@@ -2405,7 +2406,14 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryFloatArray(TIFF* tif, TIFFDirEnt
ma=(double*)origdata;
mb=data;
for (n=0; n<count; n++)
- *mb++=(float)(*ma++);
+ {
+ double val = *ma++;
+ if( val > FLT_MAX )
+ val = FLT_MAX;
+ else if( val < -FLT_MAX )
+ val = -FLT_MAX;
+ *mb++=(float)val;
+ }
}
break;
}
@@ -2871,7 +2879,10 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedRational(TIFF* tif, TIFFD
m.l = direntry->tdir_offset.toff_long8;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong(m.i,2);
- if (m.i[0]==0)
+ /* Not completely sure what we should do when m.i[1]==0, but some */
+ /* sanitizers do not like division by 0.0: */
+ /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */
+ if (m.i[0]==0 || m.i[1]==0)
*value=0.0;
else
*value=(double)m.i[0]/(double)m.i[1];
@@ -2899,7 +2910,10 @@ static enum TIFFReadDirEntryErr TIFFReadDirEntryCheckedSrational(TIFF* tif, TIFF
m.l=direntry->tdir_offset.toff_long8;
if (tif->tif_flags&TIFF_SWAB)
TIFFSwabArrayOfLong(m.i,2);
- if ((int32)m.i[0]==0)
+ /* Not completely sure what we should do when m.i[1]==0, but some */
+ /* sanitizers do not like division by 0.0: */
+ /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */
+ if ((int32)m.i[0]==0 || m.i[1]==0)
*value=0.0;
else
*value=(double)((int32)m.i[0])/(double)m.i[1];
diff --git a/third_party/libtiff/tif_dirwrite.c b/third_party/libtiff/tif_dirwrite.c
index d34f6f611..f4d8034ec 100644
--- a/third_party/libtiff/tif_dirwrite.c
+++ b/third_party/libtiff/tif_dirwrite.c
@@ -30,6 +30,7 @@
* Directory Write Support Routines.
*/
#include "tiffiop.h"
+#include <float.h>
#ifdef HAVE_IEEEFP
#define TIFFCvtNativeToIEEEFloat(tif, n, fp)
@@ -939,6 +940,69 @@ bad:
return(0);
}
+static float TIFFClampDoubleToFloat( double val )
+{
+ if( val > FLT_MAX )
+ return FLT_MAX;
+ if( val < -FLT_MAX )
+ return -FLT_MAX;
+ return (float)val;
+}
+
+static int8 TIFFClampDoubleToInt8( double val )
+{
+ if( val > 127 )
+ return 127;
+ if( val < -128 || val != val )
+ return -128;
+ return (int8)val;
+}
+
+static int16 TIFFClampDoubleToInt16( double val )
+{
+ if( val > 32767 )
+ return 32767;
+ if( val < -32768 || val != val )
+ return -32768;
+ return (int16)val;
+}
+
+static int32 TIFFClampDoubleToInt32( double val )
+{
+ if( val > 0x7FFFFFFF )
+ return 0x7FFFFFFF;
+ if( val < -0x7FFFFFFF-1 || val != val )
+ return -0x7FFFFFFF-1;
+ return (int32)val;
+}
+
+static uint8 TIFFClampDoubleToUInt8( double val )
+{
+ if( val < 0 )
+ return 0;
+ if( val > 255 || val != val )
+ return 255;
+ return (uint8)val;
+}
+
+static uint16 TIFFClampDoubleToUInt16( double val )
+{
+ if( val < 0 )
+ return 0;
+ if( val > 65535 || val != val )
+ return 65535;
+ return (uint16)val;
+}
+
+static uint32 TIFFClampDoubleToUInt32( double val )
+{
+ if( val < 0 )
+ return 0;
+ if( val > 0xFFFFFFFFU || val != val )
+ return 0xFFFFFFFFU;
+ return (uint32)val;
+}
+
static int
TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, uint32 count, double* value)
{
@@ -959,7 +1023,7 @@ TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* di
if (tif->tif_dir.td_bitspersample<=32)
{
for (i = 0; i < count; ++i)
- ((float*)conv)[i] = (float)value[i];
+ ((float*)conv)[i] = TIFFClampDoubleToFloat(value[i]);
ok = TIFFWriteDirectoryTagFloatArray(tif,ndir,dir,tag,count,(float*)conv);
}
else
@@ -971,19 +1035,19 @@ TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* di
if (tif->tif_dir.td_bitspersample<=8)
{
for (i = 0; i < count; ++i)
- ((int8*)conv)[i] = (int8)value[i];
+ ((int8*)conv)[i] = TIFFClampDoubleToInt8(value[i]);
ok = TIFFWriteDirectoryTagSbyteArray(tif,ndir,dir,tag,count,(int8*)conv);
}
else if (tif->tif_dir.td_bitspersample<=16)
{
for (i = 0; i < count; ++i)
- ((int16*)conv)[i] = (int16)value[i];
+ ((int16*)conv)[i] = TIFFClampDoubleToInt16(value[i]);
ok = TIFFWriteDirectoryTagSshortArray(tif,ndir,dir,tag,count,(int16*)conv);
}
else
{
for (i = 0; i < count; ++i)
- ((int32*)conv)[i] = (int32)value[i];
+ ((int32*)conv)[i] = TIFFClampDoubleToInt32(value[i]);
ok = TIFFWriteDirectoryTagSlongArray(tif,ndir,dir,tag,count,(int32*)conv);
}
break;
@@ -991,19 +1055,19 @@ TIFFWriteDirectoryTagSampleformatArray(TIFF* tif, uint32* ndir, TIFFDirEntry* di
if (tif->tif_dir.td_bitspersample<=8)
{
for (i = 0; i < count; ++i)
- ((uint8*)conv)[i] = (uint8)value[i];
+ ((uint8*)conv)[i] = TIFFClampDoubleToUInt8(value[i]);
ok = TIFFWriteDirectoryTagByteArray(tif,ndir,dir,tag,count,(uint8*)conv);
}
else if (tif->tif_dir.td_bitspersample<=16)
{
for (i = 0; i < count; ++i)
- ((uint16*)conv)[i] = (uint16)value[i];
+ ((uint16*)conv)[i] = TIFFClampDoubleToUInt16(value[i]);
ok = TIFFWriteDirectoryTagShortArray(tif,ndir,dir,tag,count,(uint16*)conv);
}
else
{
for (i = 0; i < count; ++i)
- ((uint32*)conv)[i] = (uint32)value[i];
+ ((uint32*)conv)[i] = TIFFClampDoubleToUInt32(value[i]);
ok = TIFFWriteDirectoryTagLongArray(tif,ndir,dir,tag,count,(uint32*)conv);
}
break;
@@ -2094,15 +2158,25 @@ TIFFWriteDirectoryTagCheckedSlong8Array(TIFF* tif, uint32* ndir, TIFFDirEntry* d
static int
TIFFWriteDirectoryTagCheckedRational(TIFF* tif, uint32* ndir, TIFFDirEntry* dir, uint16 tag, double value)
{
+ static const char module[] = "TIFFWriteDirectoryTagCheckedRational";
uint32 m[2];
- assert(value>=0.0);
assert(sizeof(uint32)==4);
- if (value<=0.0)
+ if( value < 0 )
+ {
+ TIFFErrorExt(tif->tif_clientdata,module,"Negative value is illegal");
+ return 0;
+ }
+ else if( value != value )
+ {
+ TIFFErrorExt(tif->tif_clientdata,module,"Not-a-number value is illegal");
+ return 0;
+ }
+ else if (value==0.0)
{
m[0]=0;
m[1]=1;
}
- else if (value==(double)(uint32)value)
+ else if (value <= 0xFFFFFFFFU && value==(double)(uint32)value)
{
m[0]=(uint32)value;
m[1]=1;
@@ -2143,12 +2217,13 @@ TIFFWriteDirectoryTagCheckedRationalArray(TIFF* tif, uint32* ndir, TIFFDirEntry*
}
for (na=value, nb=m, nc=0; nc<count; na++, nb+=2, nc++)
{
- if (*na<=0.0)
+ if (*na<=0.0 || *na != *na)
{
nb[0]=0;
nb[1]=1;
}
- else if (*na==(float)(uint32)(*na))
+ else if (*na >= 0 && *na <= (float)0xFFFFFFFFU &&
+ *na==(float)(uint32)(*na))
{
nb[0]=(uint32)(*na);
nb[1]=1;
diff --git a/third_party/libtiff/tif_jpeg.c b/third_party/libtiff/tif_jpeg.c
index abd0b0aa2..4f154a7c2 100644
--- a/third_party/libtiff/tif_jpeg.c
+++ b/third_party/libtiff/tif_jpeg.c
@@ -1634,6 +1634,20 @@ JPEGSetupEncode(TIFF* tif)
case PHOTOMETRIC_YCBCR:
sp->h_sampling = td->td_ycbcrsubsampling[0];
sp->v_sampling = td->td_ycbcrsubsampling[1];
+ if( sp->h_sampling == 0 || sp->v_sampling == 0 )
+ {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "Invalig horizontal/vertical sampling value");
+ return (0);
+ }
+ if( td->td_bitspersample > 16 )
+ {
+ TIFFErrorExt(tif->tif_clientdata, module,
+ "BitsPerSample %d not allowed for JPEG",
+ td->td_bitspersample);
+ return (0);
+ }
+
/*
* A ReferenceBlackWhite field *must* be present since the
* default value is inappropriate for YCbCr. Fill in the
diff --git a/third_party/libtiff/tif_read.c b/third_party/libtiff/tif_read.c
index 47686a473..c916ac8ac 100644
--- a/third_party/libtiff/tif_read.c
+++ b/third_party/libtiff/tif_read.c
@@ -420,16 +420,25 @@ TIFFReadRawStrip1(TIFF* tif, uint32 strip, void* buf, tmsize_t size,
return ((tmsize_t)(-1));
}
} else {
- tmsize_t ma,mb;
+ tmsize_t ma;
tmsize_t n;
- ma=(tmsize_t)td->td_stripoffset[strip];
- mb=ma+size;
- if ((td->td_stripoffset[strip] > (uint64)TIFF_TMSIZE_T_MAX)||(ma>tif->tif_size))
+ if ((td->td_stripoffset[strip] > (uint64)TIFF_TMSIZE_T_MAX)||
+ ((ma=(tmsize_t)td->td_stripoffset[strip])>tif->tif_size))
+ {
n=0;
- else if ((mb<ma)||(mb<size)||(mb>tif->tif_size))
- n=tif->tif_size-ma;
+ }
+ else if( ma > TIFF_TMSIZE_T_MAX - size )
+ {
+ n=0;
+ }
else
- n=size;
+ {
+ tmsize_t mb=ma+size;
+ if (mb>tif->tif_size)
+ n=tif->tif_size-ma;
+ else
+ n=size;
+ }
if (n!=size) {
#if defined(__WIN32__) && (defined(_MSC_VER) || defined(__MINGW32__))
TIFFErrorExt(tif->tif_clientdata, module,
|
