Changes in TIFF v4.5.0¶
| Current Version | v4.5.0 (tag v4.5.0) | 
| Previous Version | |
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This document provides a summary of significant changes made to the
software between the previous and current versions (see
above). A fully-detailed change summary is provided by the ChangeLog file
included in the release package and by the Git commit history:
Major changes¶
- Whole code base reformatting of .c/.h files using new .clang-format format 
- Documentation changed from static HTML and man pages to Restructured Text (rst). HTML and man pages are now build artifacts. 
Software configuration changes¶
- SONAME version bumped to 6 due to changes in symbol versioning. 
- autoconf/cmake: detect (not yet released) libjpeg-turbo 2.2 to take into its capability of handling both 8-bit JPEG and 12-bit JPEG in a single build. 
- autoconf/cmake: detect sphinx-build to build HTML and man pages 
- CMakeLists.txt: fix warning with -Wdev 
- CMake: correctly set default value of 'lzma' option when liblzma is detected (issue #482) 
- CMake: Moved linking of CMath::CMath into CMath_LIBRARY check. 
- Fix CMake build to be compatible with FetchContent. 
- cmake: Correct duplicate definition of _CRT_SECURE_NO_WARNINGS (issue #443) 
- cmake: Fixes for Visual Studio 2022. 
- Adds Requires.private generation so that pkg-config can correctly find the dependencies of libtiff. 
- Fix dependency on libm on Android 
- cmake: libtiffxx is static on win32 
- Fix build in tif_lzw.c 
- CMake: Add options for disabling tools, tests, contrib and docs. 
Library changes¶
New/improved functionalities:
- Addition of an open option concept with the new functions - TIFFOpenExt(),- TIFFOpenWExt(),- TIFFFdOpenExt(),- TIFFClientOpenExt(),- TIFFOpenOptionsAlloc(),- TIFFOpenOptionsFree()
- Leveraging above mentioned open option concept, addition of a new capability to limit the size of a single dynamic memory allocation done by the library with - TIFFOpenOptionsSetMaxSingleMemAlloc()
- Leveraging above mentioned open option concept, addition of a new capability to specify per-TIFF handle re-entrant error and warning callbacks with - TIFFOpenOptionsSetErrorHandlerExtR()and- TIFFOpenOptionsSetWarningHandlerExtR()
- Related to IFD-Loop detection refactoring, the number of IFDs that libtiff can browse through has been extended from 65535 to 1048576. This value is a build-time setting that can be configured with CMake's TIFF_MAX_DIR_COUNT variable or autoconf's --with-max-dir-count option. 
API/ABI breaks:
- tdir_t type updated to uint32_t. This type is now used for the return value of - TIFFCurrentDirectory()and- TIFFNumberOfDirectories(), and as the argument of- TIFFSetDirectory()and- TIFFUnlinkDirectory()
Bug fixes:
- TIFFWriteRawStrip(): restore capabilities to append data in the current strip (issue #489) 
- _TIFFReadEncodedTileAndAllocBuffer(): avoid excessive memory allocation on broken files (issue #479) 
- TIFFReadRGBATileExt(): fix (unsigned) integer overflow on strips/tiles > 2 GB (oss-fuzz #53137) 
- Replace sprintf calls with snprintf to fix warnings on macOS 13 SDK 
- Added warning messages for FIELD_IGNORE tags for writing and for TIFF_SETGET_UNDEFINED for reading added. (issue #438) 
- tif_dirinfo.c: fix TIFFTAG_CLIPPATH tag declaration (issue #439) 
- tif_dirinfo.c: fix TIFFTAG_COMPRESSION and _BITSPERSAMPLE tag declaration (issue #364) 
- Revised handling of TIFFTAG_INKNAMES and related TIFFTAG_NUMBEROFINKS value (issue #149, issue #150, issue #152, issue #168, issue #250, issue #269,:issue:398, CVE-2022-3599, issue #456) 
- TIFFAdvanceDirectory(): fix unsigned-integer-overflow in mapped case (oss-fuzz #52309) 
- Improved/fixes IFD-Loop Handling (issue #455). 
- Update getimage to support large raster images. 
- Presetting of default tag values extended (e.g. PlanarConfig). (issue #449) 
- Deal with RichTIFFIPTC tag written with LONG type (issue #225) 
- TIFFSetValue(): Writing IFD8 & LONG8 tags to ClassicTIFF corrected (issue #442) 
- tif_jpeg.c: allow to pass -DEXPECTED_JPEG_LIB_VERSION=number to do optional compile-time version check 
- TIFFReadFromUserBuffer(): fix clearing of TIFF_CODERSETUP flag that could cause issues with reading JPEG compressed files 
- _TIFFCheckFieldIsValidForCodec(): return FALSE when passed a codec-specific tag and the codec is not configured (issue #433, issue #486, CVE-2022-34526) 
- Add basic 16 bit cielab support. 
- WEBP codec: avoid temporary buffer and memcpy() on whole tile/strip decoding 
- tif_predict.c: make horAcc8() work with icc (ICC) 2021.6.0 20220226 -O2 
Tools changes¶
New/improved functionality:
- tiffinfo: Updated to parse through SubIFDs and show their tags. 
Bug fixes:
- tiffcrop: add check if (bps != 1) in writeSingleSection() (issue #169) 
- tiffcrop: Fix too many 'mode' options on command line (issue #470 and issue #450) 
- tiffcrop: Fix memory allocation to require a larger buffer (issue #271, issue #381, issue #386, issue #388, issue #389, issue #435, CVE-2022-3570, CVE-2022-3598) 
- tiffcrop: disable incompatibility of -Z, -X, -Y, -z options with any PAGE_MODE_x option (issue #411, CVE-2022-3627, issue #413, CVE-2022-3597, issue #426, CVE-2022-3626) 
- tiffcrop: -S option mutually exclusive (issue #349, issue #414, issue #422, issue #423, issue #424) 
- tiffcrop: fix floating-point exception (issue #415, issue #427, issue #428, CVE-2022-2056, CVE-2022-2057, CVE-2022-2058) 
- tiff2pdf: Don't try to seek into stdout (issue #441) 
- tiffinfo: update curdir from uint16_t to tdir_t for more than 64k IFD handling. 
Contributed software changes¶
None