--- /dev/null
+From 438274f938e046d33cb0e1230b41da32ffe223e1 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Fri, 2 Dec 2016 21:56:56 +0000
+Subject: [PATCH] * libtiff/tif_read.c, libtiff/tiffiop.h: fix uint32 overflow
+ in TIFFReadEncodedStrip() that caused an integer division by zero. Reported
+ by Agostino Sarubbo. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2596
+
+Fixes CVE-2016-10266
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_read.c | 2 +-
+ libtiff/tiffiop.h | 4 ++++
+ 2 files changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
+index c26c55f4..52bbf507 100644
+--- a/libtiff/tif_read.c
++++ b/libtiff/tif_read.c
+@@ -346,7 +346,7 @@ TIFFReadEncodedStrip(TIFF* tif, uint32 strip, void* buf, tmsize_t size)
+ rowsperstrip=td->td_rowsperstrip;
+ if (rowsperstrip>td->td_imagelength)
+ rowsperstrip=td->td_imagelength;
+- stripsperplane=((td->td_imagelength+rowsperstrip-1)/rowsperstrip);
++ stripsperplane= TIFFhowmany_32_maxuint_compat(td->td_imagelength, rowsperstrip);
+ stripinplane=(strip%stripsperplane);
+ plane=(uint16)(strip/stripsperplane);
+ rows=td->td_imagelength-stripinplane*rowsperstrip;
+diff --git a/libtiff/tiffiop.h b/libtiff/tiffiop.h
+index ffbb647b..cb59460a 100644
+--- a/libtiff/tiffiop.h
++++ b/libtiff/tiffiop.h
+@@ -250,6 +250,10 @@ struct tiff {
+ #define TIFFhowmany_32(x, y) (((uint32)x < (0xffffffff - (uint32)(y-1))) ? \
+ ((((uint32)(x))+(((uint32)(y))-1))/((uint32)(y))) : \
+ 0U)
++/* Variant of TIFFhowmany_32() that doesn't return 0 if x close to MAXUINT. */
++/* Caution: TIFFhowmany_32_maxuint_compat(x,y)*y might overflow */
++#define TIFFhowmany_32_maxuint_compat(x, y) \
++ (((uint32)(x) / (uint32)(y)) + ((((uint32)(x) % (uint32)(y)) != 0) ? 1 : 0))
+ #define TIFFhowmany8_32(x) (((x)&0x07)?((uint32)(x)>>3)+1:(uint32)(x)>>3)
+ #define TIFFroundup_32(x, y) (TIFFhowmany_32(x,y)*(y))
+ #define TIFFhowmany_64(x, y) ((((uint64)(x))+(((uint64)(y))-1))/((uint64)(y)))
+--
+2.11.0
+
--- /dev/null
+From 43bc256d8ae44b92d2734a3c5bc73957a4d7c1ec Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sat, 3 Dec 2016 11:15:18 +0000
+Subject: [PATCH] * libtiff/tif_ojpeg.c: make OJPEGDecode() early exit in case
+ of failure in OJPEGPreDecode(). This will avoid a divide by zero, and
+ potential other issues. Reported by Agostino Sarubbo. Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2611
+
+Fixes CVE-2016-10267
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_ojpeg.c | 8 ++++++++
+ 1 files changed, 15 insertions(+)
+
+diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
+index 1ccc3f9b..f19e8fd0 100644
+--- a/libtiff/tif_ojpeg.c
++++ b/libtiff/tif_ojpeg.c
+@@ -244,6 +244,7 @@ typedef enum {
+
+ typedef struct {
+ TIFF* tif;
++ int decoder_ok;
+ #ifndef LIBJPEG_ENCAP_EXTERNAL
+ JMP_BUF exit_jmpbuf;
+ #endif
+@@ -722,6 +723,7 @@ OJPEGPreDecode(TIFF* tif, uint16 s)
+ }
+ sp->write_curstrile++;
+ }
++ sp->decoder_ok = 1;
+ return(1);
+ }
+
+@@ -784,8 +786,14 @@ OJPEGPreDecodeSkipScanlines(TIFF* tif)
+ static int
+ OJPEGDecode(TIFF* tif, uint8* buf, tmsize_t cc, uint16 s)
+ {
++ static const char module[]="OJPEGDecode";
+ OJPEGState* sp=(OJPEGState*)tif->tif_data;
+ (void)s;
++ if( !sp->decoder_ok )
++ {
++ TIFFErrorExt(tif->tif_clientdata,module,"Cannot decode: decoder not correctly initialized");
++ return 0;
++ }
+ if (sp->libjpeg_jpeg_query_style==0)
+ {
+ if (OJPEGDecodeRaw(tif,buf,cc)==0)
+--
+2.11.0
+
--- /dev/null
+From 1044b43637fa7f70fb19b93593777b78bd20da86 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Fri, 2 Dec 2016 23:05:51 +0000
+Subject: [PATCH] * libtiff/tif_pixarlog.c, libtiff/tif_luv.c: fix heap-based
+ buffer overflow on generation of PixarLog / LUV compressed files, with
+ ColorMap, TransferFunction attached and nasty plays with bitspersample. The
+ fix for LUV has not been tested, but suffers from the same kind of issue of
+ PixarLog. Reported by Agostino Sarubbo. Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2604
+
+Fixes CVE-2016-10269
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_luv.c | 18 ++++++++++++++----
+ libtiff/tif_pixarlog.c | 17 +++++++++++++++--
+ 2 files changed, 39 insertions(+), 6 deletions(-)
+
+diff --git a/libtiff/tif_luv.c b/libtiff/tif_luv.c
+index f68a9b13..e6783db5 100644
+--- a/libtiff/tif_luv.c
++++ b/libtiff/tif_luv.c
+@@ -158,6 +158,7 @@
+ typedef struct logLuvState LogLuvState;
+
+ struct logLuvState {
++ int encoder_state; /* 1 if encoder correctly initialized */
+ int user_datafmt; /* user data format */
+ int encode_meth; /* encoding method */
+ int pixel_size; /* bytes per pixel */
+@@ -1552,6 +1553,7 @@ LogLuvSetupEncode(TIFF* tif)
+ td->td_photometric, "must be either LogLUV or LogL");
+ break;
+ }
++ sp->encoder_state = 1;
+ return (1);
+ notsupported:
+ TIFFErrorExt(tif->tif_clientdata, module,
+@@ -1563,19 +1565,27 @@ notsupported:
+ static void
+ LogLuvClose(TIFF* tif)
+ {
++ LogLuvState* sp = (LogLuvState*) tif->tif_data;
+ TIFFDirectory *td = &tif->tif_dir;
+
++ assert(sp != 0);
+ /*
+ * For consistency, we always want to write out the same
+ * bitspersample and sampleformat for our TIFF file,
+ * regardless of the data format being used by the application.
+ * Since this routine is called after tags have been set but
+ * before they have been recorded in the file, we reset them here.
++ * Note: this is really a nasty approach. See PixarLogClose
+ */
+- td->td_samplesperpixel =
+- (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3;
+- td->td_bitspersample = 16;
+- td->td_sampleformat = SAMPLEFORMAT_INT;
++ if( sp->encoder_state )
++ {
++ /* See PixarLogClose. Might avoid issues with tags whose size depends
++ * on those below, but not completely sure this is enough. */
++ td->td_samplesperpixel =
++ (td->td_photometric == PHOTOMETRIC_LOGL) ? 1 : 3;
++ td->td_bitspersample = 16;
++ td->td_sampleformat = SAMPLEFORMAT_INT;
++ }
+ }
+
+ static void
+diff --git a/libtiff/tif_pixarlog.c b/libtiff/tif_pixarlog.c
+index d1246c3d..aa99bc92 100644
+--- a/libtiff/tif_pixarlog.c
++++ b/libtiff/tif_pixarlog.c
+@@ -1233,8 +1233,10 @@ PixarLogPostEncode(TIFF* tif)
+ static void
+ PixarLogClose(TIFF* tif)
+ {
++ PixarLogState* sp = (PixarLogState*) tif->tif_data;
+ TIFFDirectory *td = &tif->tif_dir;
+
++ assert(sp != 0);
+ /* In a really sneaky (and really incorrect, and untruthful, and
+ * troublesome, and error-prone) maneuver that completely goes against
+ * the spirit of TIFF, and breaks TIFF, on close, we covertly
+@@ -1243,8 +1245,19 @@ PixarLogClose(TIFF* tif)
+ * readers that don't know about PixarLog, or how to set
+ * the PIXARLOGDATFMT pseudo-tag.
+ */
+- td->td_bitspersample = 8;
+- td->td_sampleformat = SAMPLEFORMAT_UINT;
++
++ if (sp->state&PLSTATE_INIT) {
++ /* We test the state to avoid an issue such as in
++ * http://bugzilla.maptools.org/show_bug.cgi?id=2604
++ * What appends in that case is that the bitspersample is 1 and
++ * a TransferFunction is set. The size of the TransferFunction
++ * depends on 1<<bitspersample. So if we increase it, an access
++ * out of the buffer will happen at directory flushing.
++ * Another option would be to clear those targs.
++ */
++ td->td_bitspersample = 8;
++ td->td_sampleformat = SAMPLEFORMAT_UINT;
++ }
+ }
+
+ static void
+--
+2.11.0
+
--- /dev/null
+From 9a72a69e035ee70ff5c41541c8c61cd97990d018 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Sat, 3 Dec 2016 11:02:15 +0000
+Subject: [PATCH] * libtiff/tif_dirread.c: modify
+ ChopUpSingleUncompressedStrip() to instanciate compute ntrips as
+ TIFFhowmany_32(td->td_imagelength, rowsperstrip), instead of a logic based on
+ the total size of data. Which is faulty is the total size of data is not
+ sufficient to fill the whole image, and thus results in reading outside of
+ the StripByCounts/StripOffsets arrays when using TIFFReadScanline(). Reported
+ by Agostino Sarubbo. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2608.
+
+* libtiff/tif_strip.c: revert the change in TIFFNumberOfStrips() done
+for http://bugzilla.maptools.org/show_bug.cgi?id=2587 / CVE-2016-9273 since
+the above change is a better fix that makes it unnecessary.
+
+Fixes CVE-2016-10270
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_dirread.c | 22 ++++++++++------------
+ libtiff/tif_strip.c | 9 ---------
+ 2 files changed, 25 insertions(+), 21 deletions(-)
+
+diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c
+index 3eec79c9..570d0c32 100644
+--- a/libtiff/tif_dirread.c
++++ b/libtiff/tif_dirread.c
+@@ -5502,8 +5502,7 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
+ uint64 rowblockbytes;
+ uint64 stripbytes;
+ uint32 strip;
+- uint64 nstrips64;
+- uint32 nstrips32;
++ uint32 nstrips;
+ uint32 rowsperstrip;
+ uint64* newcounts;
+ uint64* newoffsets;
+@@ -5534,18 +5533,17 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
+ return;
+
+ /*
+- * never increase the number of strips in an image
++ * never increase the number of rows per strip
+ */
+ if (rowsperstrip >= td->td_rowsperstrip)
+ return;
+- nstrips64 = TIFFhowmany_64(bytecount, stripbytes);
+- if ((nstrips64==0)||(nstrips64>0xFFFFFFFF)) /* something is wonky, do nothing. */
+- return;
+- nstrips32 = (uint32)nstrips64;
++ nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip);
++ if( nstrips == 0 )
++ return;
+
+- newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
++ newcounts = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
+ "for chopped \"StripByteCounts\" array");
+- newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips32, sizeof (uint64),
++ newoffsets = (uint64*) _TIFFCheckMalloc(tif, nstrips, sizeof (uint64),
+ "for chopped \"StripOffsets\" array");
+ if (newcounts == NULL || newoffsets == NULL) {
+ /*
+@@ -5562,18 +5560,18 @@ ChopUpSingleUncompressedStrip(TIFF* tif)
+ * Fill the strip information arrays with new bytecounts and offsets
+ * that reflect the broken-up format.
+ */
+- for (strip = 0; strip < nstrips32; strip++) {
++ for (strip = 0; strip < nstrips; strip++) {
+ if (stripbytes > bytecount)
+ stripbytes = bytecount;
+ newcounts[strip] = stripbytes;
+- newoffsets[strip] = offset;
++ newoffsets[strip] = stripbytes ? offset : 0;
+ offset += stripbytes;
+ bytecount -= stripbytes;
+ }
+ /*
+ * Replace old single strip info with multi-strip info.
+ */
+- td->td_stripsperimage = td->td_nstrips = nstrips32;
++ td->td_stripsperimage = td->td_nstrips = nstrips;
+ TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
+
+ _TIFFfree(td->td_stripbytecount);
+diff --git a/libtiff/tif_strip.c b/libtiff/tif_strip.c
+index 4c46ecf5..1676e47d 100644
+--- a/libtiff/tif_strip.c
++++ b/libtiff/tif_strip.c
+@@ -63,15 +63,6 @@ TIFFNumberOfStrips(TIFF* tif)
+ TIFFDirectory *td = &tif->tif_dir;
+ uint32 nstrips;
+
+- /* If the value was already computed and store in td_nstrips, then return it,
+- since ChopUpSingleUncompressedStrip might have altered and resized the
+- since the td_stripbytecount and td_stripoffset arrays to the new value
+- after the initial affectation of td_nstrips = TIFFNumberOfStrips() in
+- tif_dirread.c ~line 3612.
+- See http://bugzilla.maptools.org/show_bug.cgi?id=2587 */
+- if( td->td_nstrips )
+- return td->td_nstrips;
+-
+ nstrips = (td->td_rowsperstrip == (uint32) -1 ? 1 :
+ TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip));
+ if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
+--
+2.11.0
+
--- /dev/null
+From 5c080298d59efa53264d7248bbe3a04660db6ef7 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Wed, 11 Jan 2017 19:25:44 +0000
+Subject: [PATCH] * tools/tiffcp.c: error out cleanly in cpContig2SeparateByRow
+ and cpSeparate2ContigByRow if BitsPerSample != 8 to avoid heap based
+ overflow. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2656 and
+ http://bugzilla.maptools.org/show_bug.cgi?id=2657
+
+Fixes CVE-2017-5225
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ tools/tiffcp.c | 24 ++++++++++++++++++++++--
+ 1 file changed, 29 insertions(+), 2 deletions(-)
+
+diff --git a/tools/tiffcp.c b/tools/tiffcp.c
+index bdf754c3..8bbcd52f 100644
+--- a/tools/tiffcp.c
++++ b/tools/tiffcp.c
+@@ -591,7 +591,7 @@ static copyFunc pickCopyFunc(TIFF*, TIFF*, uint16, uint16);
+ static int
+ tiffcp(TIFF* in, TIFF* out)
+ {
+- uint16 bitspersample, samplesperpixel = 1;
++ uint16 bitspersample = 1, samplesperpixel = 1;
+ uint16 input_compression, input_photometric = PHOTOMETRIC_MINISBLACK;
+ copyFunc cf;
+ uint32 width, length;
+@@ -1067,6 +1067,16 @@ DECLAREcpFunc(cpContig2SeparateByRow)
+ register uint32 n;
+ uint32 row;
+ tsample_t s;
++ uint16 bps = 0;
++
++ (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
++ if( bps != 8 )
++ {
++ TIFFError(TIFFFileName(in),
++ "Error, can only handle BitsPerSample=8 in %s",
++ "cpContig2SeparateByRow");
++ return 0;
++ }
+
+ inbuf = _TIFFmalloc(scanlinesizein);
+ outbuf = _TIFFmalloc(scanlinesizeout);
+@@ -1120,6 +1130,16 @@ DECLAREcpFunc(cpSeparate2ContigByRow)
+ register uint32 n;
+ uint32 row;
+ tsample_t s;
++ uint16 bps = 0;
++
++ (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps);
++ if( bps != 8 )
++ {
++ TIFFError(TIFFFileName(in),
++ "Error, can only handle BitsPerSample=8 in %s",
++ "cpSeparate2ContigByRow");
++ return 0;
++ }
+
+ inbuf = _TIFFmalloc(scanlinesizein);
+ outbuf = _TIFFmalloc(scanlinesizeout);
+@@ -1784,7 +1804,7 @@ pickCopyFunc(TIFF* in, TIFF* out, uint16 bitspersample, uint16 samplesperpixel)
+ uint32 w, l, tw, tl;
+ int bychunk;
+
+- (void) TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv);
++ (void) TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &shortv);
+ if (shortv != config && bitspersample != 8 && samplesperpixel > 1) {
+ fprintf(stderr,
+ "%s: Cannot handle different planar configuration w/ bits/sample != 8\n",
+--
+2.11.0
+
--- /dev/null
+From 48780b4fcc425cddc4ef8ffdf536f96a0d1b313b Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Wed, 11 Jan 2017 16:38:26 +0000
+Subject: [PATCH] libtiff/tif_getimage.c: add explicit uint32 cast in putagreytile to
+ avoid UndefinedBehaviorSanitizer warning.
+ Patch by Nicolás Peña.
+ Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2658
+
+Fixes CVE-2017-7592
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_getimage.c | 2 +-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
+index fed31f1f..2fa1775c 100644
+--- a/libtiff/tif_getimage.c
++++ b/libtiff/tif_getimage.c
+@@ -1302,7 +1302,7 @@ DECLAREContigPutFunc(putagreytile)
+ while (h-- > 0) {
+ for (x = w; x-- > 0;)
+ {
+- *cp++ = BWmap[*pp][0] & (*(pp+1) << 24 | ~A1);
++ *cp++ = BWmap[*pp][0] & ((uint32)*(pp+1) << 24 | ~A1);
+ pp += samplesperpixel;
+ }
+ cp += toskew;
+--
+2.11.0
+
--- /dev/null
+From d60332057b9575ada4f264489582b13e30137be1 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Wed, 11 Jan 2017 19:02:49 +0000
+Subject: [PATCH] * libtiff/tiffiop.h, tif_unix.c, tif_win32.c, tif_vms.c: add
+ _TIFFcalloc()
+
+* libtiff/tif_read.c: TIFFReadBufferSetup(): use _TIFFcalloc() to zero
+initialize tif_rawdata.
+Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2651
+
+Fixes CVE-2017-7593
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_read.c | 4 +++-
+ libtiff/tif_unix.c | 8 ++++++++
+ libtiff/tif_win32.c | 8 ++++++++
+ libtiff/tiffio.h | 1 +
+ 4 files changed, 36 insertions(+), 1 deletion(-)
+
+diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
+index 277fdd69..4535ccb3 100644
+--- a/libtiff/tif_read.c
++++ b/libtiff/tif_read.c
+@@ -985,7 +985,9 @@ TIFFReadBufferSetup(TIFF* tif, void* bp, tmsize_t size)
+ "Invalid buffer size");
+ return (0);
+ }
+- tif->tif_rawdata = (uint8*) _TIFFmalloc(tif->tif_rawdatasize);
++ /* Initialize to zero to avoid uninitialized buffers in case of */
++ /* short reads (http://bugzilla.maptools.org/show_bug.cgi?id=2651) */
++ tif->tif_rawdata = (uint8*) _TIFFcalloc(1, tif->tif_rawdatasize);
+ tif->tif_flags |= TIFF_MYBUFFER;
+ }
+ if (tif->tif_rawdata == NULL) {
+diff --git a/libtiff/tif_unix.c b/libtiff/tif_unix.c
+index 7c7bc961..89dd32e8 100644
+--- a/libtiff/tif_unix.c
++++ b/libtiff/tif_unix.c
+@@ -316,6 +316,14 @@ _TIFFmalloc(tmsize_t s)
+ return (malloc((size_t) s));
+ }
+
++void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz)
++{
++ if( nmemb == 0 || siz == 0 )
++ return ((void *) NULL);
++
++ return calloc((size_t) nmemb, (size_t)siz);
++}
++
+ void
+ _TIFFfree(void* p)
+ {
+diff --git a/libtiff/tif_win32.c b/libtiff/tif_win32.c
+index d730b3ab..3e9001b7 100644
+--- a/libtiff/tif_win32.c
++++ b/libtiff/tif_win32.c
+@@ -360,6 +360,14 @@ _TIFFmalloc(tmsize_t s)
+ return (malloc((size_t) s));
+ }
+
++void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz)
++{
++ if( nmemb == 0 || siz == 0 )
++ return ((void *) NULL);
++
++ return calloc((size_t) nmemb, (size_t)siz);
++}
++
+ void
+ _TIFFfree(void* p)
+ {
+diff --git a/libtiff/tiffio.h b/libtiff/tiffio.h
+index 732da17f..fbd9171f 100644
+--- a/libtiff/tiffio.h
++++ b/libtiff/tiffio.h
+@@ -293,6 +293,7 @@ extern TIFFCodec* TIFFGetConfiguredCODECs(void);
+ */
+
+ extern void* _TIFFmalloc(tmsize_t s);
++extern void* _TIFFcalloc(tmsize_t nmemb, tmsize_t siz);
+ extern void* _TIFFrealloc(void* p, tmsize_t s);
+ extern void _TIFFmemset(void* p, int v, tmsize_t c);
+ extern void _TIFFmemcpy(void* d, const void* s, tmsize_t c);
+--
+2.11.0
+
--- /dev/null
+From 2ea32f7372b65c24b2816f11c04bf59b5090d05b Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Thu, 12 Jan 2017 19:23:20 +0000
+Subject: [PATCH] * libtiff/tif_ojpeg.c: fix leak in
+ OJPEGReadHeaderInfoSecTablesQTable, OJPEGReadHeaderInfoSecTablesDcTable and
+ OJPEGReadHeaderInfoSecTablesAcTable
+
+Fixes CVE-2017-7594
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_ojpeg.c | 6 ++++++
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
+index b92f0ebd..5f6c684c 100644
+--- a/libtiff/tif_ojpeg.c
++++ b/libtiff/tif_ojpeg.c
+@@ -1790,7 +1790,10 @@ OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif)
+ TIFFSeekFile(tif,sp->qtable_offset[m],SEEK_SET);
+ p=(uint32)TIFFReadFile(tif,&ob[sizeof(uint32)+5],64);
+ if (p!=64)
++ {
++ _TIFFfree(ob);
+ return(0);
++ }
+ sp->qtable[m]=ob;
+ sp->sof_tq[m]=m;
+ }
+@@ -1854,7 +1857,10 @@ OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif)
+ rb[sizeof(uint32)+5+n]=o[n];
+ p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q);
+ if (p!=q)
++ {
++ _TIFFfree(rb);
+ return(0);
++ }
+ sp->dctable[m]=rb;
+ sp->sos_tda[m]=(m<<4);
+ }
+--
+2.11.0
+
--- /dev/null
+From 8283e4d1b7e53340684d12932880cbcbaf23a8c1 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Thu, 12 Jan 2017 17:43:25 +0000
+Subject: [PATCH] libtiff/tif_ojpeg.c: fix leak in
+ OJPEGReadHeaderInfoSecTablesAcTable when read fails.
+ Patch by Nicolás Peña.
+ Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2659
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Fixes CVE-2017-7594
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_ojpeg.c | 3 +++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
+index f19e8fd0..b92f0ebd 100644
+--- a/libtiff/tif_ojpeg.c
++++ b/libtiff/tif_ojpeg.c
+@@ -1918,7 +1918,10 @@ OJPEGReadHeaderInfoSecTablesAcTable(TIFF* tif)
+ rb[sizeof(uint32)+5+n]=o[n];
+ p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q);
+ if (p!=q)
++ {
++ _TIFFfree(rb);
+ return(0);
++ }
+ sp->actable[m]=rb;
+ sp->sos_tda[m]=(sp->sos_tda[m]|m);
+ }
+--
+2.11.0
+
--- /dev/null
+From 47f2fb61a3a64667bce1a8398a8fcb1b348ff122 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Wed, 11 Jan 2017 12:15:01 +0000
+Subject: [PATCH] * libtiff/tif_jpeg.c: avoid integer division by zero in
+ JPEGSetupEncode() when horizontal or vertical sampling is set to 0. Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2653
+
+Fixes CVE-2017-7595
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_jpeg.c | 7 +++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/libtiff/tif_jpeg.c b/libtiff/tif_jpeg.c
+index 38595f98..6c17c388 100644
+--- a/libtiff/tif_jpeg.c
++++ b/libtiff/tif_jpeg.c
+@@ -1626,6 +1626,13 @@ 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);
++ }
++
+ /*
+ * A ReferenceBlackWhite field *must* be present since the
+ * default value is inappropriate for YCbCr. Fill in the
+--
+2.11.0
+
--- /dev/null
+From 3cfd62d77c2a7e147a05bd678524c345fa9c2bb8 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Wed, 11 Jan 2017 13:28:01 +0000
+Subject: [PATCH] * libtiff/tif_dirread.c: avoid division by floating point 0
+ in TIFFReadDirEntryCheckedRational() and TIFFReadDirEntryCheckedSrational(),
+ and return 0 in that case (instead of infinity as before presumably)
+ Apparently some sanitizers do not like those divisions by zero. Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2644
+
+Fixes CVE-2017-7598
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_dirread.c | 10 ++++++++--
+ 1 file changed, 16 insertions(+), 2 deletions(-)
+
+diff --git a/libtiff/tif_dirread.c b/libtiff/tif_dirread.c
+index 570d0c32..8a1e42aa 100644
+--- a/libtiff/tif_dirread.c
++++ b/libtiff/tif_dirread.c
+@@ -2872,7 +2872,10 @@ 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];
+@@ -2900,7 +2903,10 @@ 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];
+--
+2.11.0
+
--- /dev/null
+From 0a76a8c765c7b8327c59646284fa78c3c27e5490 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Wed, 11 Jan 2017 16:13:50 +0000
+Subject: [PATCH] * libtiff/tif_jpeg.c: validate BitsPerSample in
+ JPEGSetupEncode() to avoid undefined behaviour caused by invalid shift
+ exponent. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2648
+
+Fixes CVE-2017-7601
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_jpeg.c | 7 +++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/libtiff/tif_jpeg.c b/libtiff/tif_jpeg.c
+index 6c17c388..192989a9 100644
+--- a/libtiff/tif_jpeg.c
++++ b/libtiff/tif_jpeg.c
+@@ -1632,6 +1632,13 @@ JPEGSetupEncode(TIFF* tif)
+ "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
+--
+2.11.0
+
--- /dev/null
+From 66e7bd59520996740e4df5495a830b42fae48bc4 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Wed, 11 Jan 2017 16:33:34 +0000
+Subject: [PATCH] * libtiff/tif_read.c: avoid potential undefined behaviour on
+ signed integer addition in TIFFReadRawStrip1() in isMapped() case. Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2650
+
+Fixes CVE-2017-7602
+
+Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
+---
+ libtiff/tif_read.c | 27 ++++++++++++++++++---------
+ 1 file changed, 24 insertions(+), 9 deletions(-)
+
+diff --git a/libtiff/tif_read.c b/libtiff/tif_read.c
+index 52bbf507..b7aacbda 100644
+--- a/libtiff/tif_read.c
++++ b/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))
+- n=0;
+- else if ((mb<ma)||(mb<size)||(mb>tif->tif_size))
+- n=tif->tif_size-ma;
+- else
+- n=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( ma > TIFF_TMSIZE_T_MAX - size )
++ {
++ n=0;
++ }
++ else
++ {
++ 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,
+--
+2.11.0
+
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