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Changes in TIFF v3.9.3
======================
.. table:: References
:widths: auto
====================== ==========================================
Current Version v3.9.3 (:tag:`Release-v3-9-3`)
Previous Version :doc:`v3.9.2 <v3.9.2>`
Master Download Site `<https://download.osgeo.org/libtiff/>`_
Master HTTP Site `<http://www.simplesystems.org/libtiff/>`_
====================== ==========================================
This document describes the changes made to the software between the
*previous* and *current* versions (see above). If you don't
find something listed here, then it was not done in this timeframe, or
it was not considered important enough to be mentioned. The following
information is located here:
Major changes
-------------
* Fixes for :cve:`2010-1411`.
* Various reported bug fixes.
Software configuration changes
------------------------------
* libtool is updated to version 2.2.10.
Library changes
---------------
* Fix a couple of issues that trigger failures in some
cases when using :c:func:`TIFFReadScanline` with JPEG compressed
subsampled ycbcr images.
:bugzilla:`1936`
* Ensure tile and scanline sizes are reset when moving to
new directories.
:bugzilla:`1936`
* Do not generate a ``JPEGTables`` tag when creating the JPEG
TIFF as is is not required in order to prevent it from being
unused and filled with invalid data. (Leave it to be
generated by later activity.)
:bugzilla:`2135`
* Don't return error on badly-terminated MMR strips.
:bugzilla:`2029`
* Have :c:macro:`TIFFTAG_REFERENCEBLACKWHITE` always print 6 floats
instead of ``2*SamplesPerPixel``.
:bugzilla:`2186`
* Ensure that JPEG quality is always set in
:c:func:`JPEGPreEncode`, not just when we want to output local tables.
Otherwise the quality used during compression may not be right
and might not match the tables in the tables tag. This bug
only occurs when seeking between directories in the midst of
writing blocks. :gdal-trac:`3539`
* OJPEG: Report an error and avoid a crash if the input
file is so broken that the strip offsets are not defined.
* Eliminate FAX3 decoder buffer overrun possibility
(:cve:`2010-1411`).
* Restore ``ReferenceBlackWhite`` as a non-custom field. This
avoids a multi-thread reentrancy problem as well as fixing
output of wrong tag value due to redundant definitions for the
same tag in the :c:var:`tiffFieldInfo[]` array. Resolves
:bugzilla:`2185`
Tools changes
-------------
* :program:`tiff2pdf`: Write the JPEG SOI headers into the TIFF strip
data rather than skipping them. This fixes the ability to view in
Acrobat Reader, Evince, and Ghostscript.
:bugzilla:`2135`
* :program:`ppm2tiff`: While case for parsing comment line
requires extra parenthesis to work as expected. Reported by
Thomas Sinclair.
* :program:`tiffcp`: add a new option ``-x`` to force merged tiff
file ``PAGENUMBER`` value in sequence for users who care the page
sequence, this will also prevent :program:`tiff2pdf` from creating pdf file from
the merged tiff file with wrong page sequence.
* :program:`tiffcp`: Applied Tom Lane's patch to reject YCbCr
subsampled data since :program:`tiffcp` currently doesn't support it.
:bugzilla:`2097`
Contributed software changes
----------------------------
* None
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