* libtiff 4.0.7 released.

* configure.ac: Update for 4.0.7 release.

* tools/tiffdump.c (ReadDirectory): Remove uint32 cast to
_TIFFmalloc() argument which resulted in Coverity report. Added
more mutiplication overflow checks.

Assign CVE numbers

* tools/tiffcrop.c: Fix memory leak in (recent) error code path.
Fixes Coverity 1394415.

* libtiff/tif_getimage.c: Fix some benign warnings which appear in
64-bit compilation under Microsoft Visual Studio of the form
"Arithmetic overflow: 32-bit value is shifted, then cast to 64-bit
valu

* libtiff/tif_getimage.c: Fix some benign warnings which appear in
64-bit compilation under Microsoft Visual Studio of the form
"Arithmetic overflow: 32-bit value is shifted, then cast to 64-bit
value. Results might not be an expected value.". Problem was
reported on November 16, 2016 on the tiff mailing list.

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* libtiff/tif_dirread.c: in TIFFFetchNormalTag(), do not dereference
NULL pointer when values of tags with TIFF_SETGET_C16_ASCII / TIFF_SETGET_C32_ASCII
access are 0-byte arrays.
Fixes http://bugzill

* libtiff/tif_dirread.c: in TIFFFetchNormalTag(), do not dereference
NULL pointer when values of tags with TIFF_SETGET_C16_ASCII / TIFF_SETGET_C32_ASCII
access are 0-byte arrays.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2593 (regression introduced
by previous fix done on 2016-11-11 for CVE-2016-9297).
Reported by Henri Salo.

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Assign CVE-2016-9297 number

* tools/tiffinfo.c (TIFFReadContigTileData): Fix signed/unsigned
comparison warning.
(TIFFReadSeparateTileData): Fix signed/unsigned comparison
warning.

* tools/tiffcrop.c (readContigTilesIntoBuffer): Fix
signed/unsigned comparison warning.

* html/v4.0.7.html: Add a file to document the pending 4.0.7
release.

* tools/tiff2pdf.c: avoid undefined behaviour related to overlapping
of source and destination buffer in memcpy() call in
t2p_sample_rgbaa_to_rgb()
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=

* tools/tiff2pdf.c: avoid undefined behaviour related to overlapping
of source and destination buffer in memcpy() call in
t2p_sample_rgbaa_to_rgb()
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2577

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* tools/tiff2pdf.c: fix potential integer overflows on 32 bit builds
in t2p_read_tiff_size()
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2576

Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2587 (CVE-2016-9273)

* libtiff/tif_aux.c: fix crash in TIFFVGetFieldDefaulted()
when requesting Predictor tag and that the zip/lzw codec is not
configured.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2591

* libtiff/tif_dirread.c: in TIFFFetchNormalTag(), make sure that
values of tags with TIFF_SETGET_C16_ASCII / TIFF_SETGET_C32_ASCII
access are null terminated, to avoid potential read outside buffer
i

* libtiff/tif_dirread.c: in TIFFFetchNormalTag(), make sure that
values of tags with TIFF_SETGET_C16_ASCII / TIFF_SETGET_C32_ASCII
access are null terminated, to avoid potential read outside buffer
in _TIFFPrintField().
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2590

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* libtiff/tif_dirread.c: reject images with OJPEG compression that
have no TileOffsets/StripOffsets tag, when OJPEG compression is
disabled. Prevent null pointer dereference in TIFFReadRawStrip1()
an

* libtiff/tif_dirread.c: reject images with OJPEG compression that
have no TileOffsets/StripOffsets tag, when OJPEG compression is
disabled. Prevent null pointer dereference in TIFFReadRawStrip1()
and other functions that expect td_stripbytecount to be non NULL.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2585

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* tools/tiffcrop.c: fix multiple uint32 overflows in
writeBufferToSeparateStrips(), writeBufferToContigTiles() and
writeBufferToSeparateTiles() that could cause heap buffer overflows.
Reported by Hen

* tools/tiffcrop.c: fix multiple uint32 overflows in
writeBufferToSeparateStrips(), writeBufferToContigTiles() and
writeBufferToSeparateTiles() that could cause heap buffer overflows.
Reported by Henri Salo from Nixu Corporation.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2592

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* libtiff/tif_strip.c: make TIFFNumberOfStrips() return the td->td_nstrips
value when it is non-zero, instead of recomputing it. This is needed in
TIFF_STRIPCHOP mode where td_nstrips is modified. Fi

* libtiff/tif_strip.c: make TIFFNumberOfStrips() return the td->td_nstrips
value when it is non-zero, instead of recomputing it. This is needed in
TIFF_STRIPCHOP mode where td_nstrips is modified. Fixes a read outsize of
array in tiffsplit (or other utilities using TIFFNumberOfStrips()).
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2587

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* libtiff/tif_predic.c: fix memory leaks in error code paths added in
previous commit (fix for MSVR 35105)

* libtiff/tif_predict.h, libtiff/tif_predict.c:
Replace assertions by runtime checks to avoid assertions in debug mode,
or buffer overflows in release mode. Can happen when dealing with
unusual tile

* libtiff/tif_predict.h, libtiff/tif_predict.c:
Replace assertions by runtime checks to avoid assertions in debug mode,
or buffer overflows in release mode. Can happen when dealing with
unusual tile size like YCbCr with subsampling. Reported as MSVR 35105
by Axel Souchet & Vishal Chauhan from the MSRC Vulnerabilities & Mitigations
team.

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* tools/fax2tiff.c: fix segfault when specifying -r without
argument. Patch by Yuriy M. Kaminskiy.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2572

Fixing last ChangeLog entry

* libtiff/tif_dir.c: discard values of SMinSampleValue and
SMaxSampleValue when they have been read and the value of
SamplesPerPixel is changed afterwards (like when reading a
OJPEG compressed image

* libtiff/tif_dir.c: discard values of SMinSampleValue and
SMaxSampleValue when they have been read and the value of
SamplesPerPixel is changed afterwards (like when reading a
OJPEG compressed image with a missing SamplesPerPixel tag,
and whose photometric is RGB or YCbCr, forcing SamplesPerPixel
being 3). Otherwise when rewriting the directory (for example
with tiffset, we will expect 3 values whereas the array had been
allocated with just one), thus causing a out of bound read access.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2500
(CVE-2014-8127, duplicate: CVE-2016-3658)

* libtiff/tif_write.c: avoid null pointer dereference on td_stripoffset
when writing directory, if FIELD_STRIPOFFSETS was artificially set
for a hack case in OJPEG case.
Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2500
(CVE-2014-8127, duplicate: CVE-2016-3658)

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* tools/tiffinfo.c: fix out-of-bound read on some tiled images.
(http://bugzilla.maptools.org/show_bug.cgi?id=2517)

* libtiff/tif_compress.c: make TIFFNoDecode() return 0 to indicate an
error and ma

* tools/tiffinfo.c: fix out-of-bound read on some tiled images.
(http://bugzilla.maptools.org/show_bug.cgi?id=2517)

* libtiff/tif_compress.c: make TIFFNoDecode() return 0 to indicate an
error and make upper level read routines treat it accordingly.
(linked to the test case of http://bugzilla.maptools.org/show_bug.cgi?id=2517)

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* tools/tiffcrop.c: fix out-of-bound read of up to 3 bytes in
readContigTilesIntoBuffer(). Reported as MSVR 35092 by Axel Souchet
& Vishal Chauhan from the MSRC Vulnerabilities & Mitigations team.