CVE-2025-8534

A vulnerability classified as problematic was found in libtiff 4.6.0. This vulnerability affects the function PS_Lvl2page of the file tools/tiff2ps.c of the component tiff2ps. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The name of the patch is 6ba36f159fd396ad11bf6b7874554197736ecc8b. It is recommended to apply a patch to fix this issue. One of the maintainers explains, that "[t]his error only occurs if DEFER_STRILE_LOAD (defer-strile-load:BOOL=ON) or TIFFOpen( .. "rD") option is used."

A vulnerability classified as problematic was found in libtiff 4.6.0. This vulnerability affects the function PS_Lvl2page of the file tools/tiff2ps.c of the component tiff2ps. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The name of the patch is 6ba36f159fd396ad11bf6b7874554197736ecc8b. It is recommended to apply a patch to fix this issue. One of the maintainers explains, that "[t]his error only occurs if DEFER_STRILE_LOAD (defer-strile-load:BOOL=ON) or TIFFOpen( .. "rD") option is used."

This provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.And contains command-line programs for manipulating TIFF format image files using the libtiff library.

Security Fix(es):

LibTIFF is a library for reading and writing TIFF (label image file format) files that are open source. This library contains some command-line tools for handling TIFF files. There is a security vulnerability in the 4.6.0 version of LibTIFF, which originates from the dereference of the null pointer of the function PS_Lvl2page in the file tools/tiff2ps.c.(CVE-2025-8534)

A vulnerability was found in LibTIFF up to 4.5.1 (Image Processing Software). It has been rated as critical.Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Impacted is confidentiality, integrity, and availability.Applying the patch 8a7a48d7a645992ca83062b3a1873c951661e2b3 is able to eliminate this problem. The bugfix is ready for download at gitlab.com.(CVE-2025-8851)

This provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.And contains command-line programs for manipulating TIFF format image files using the libtiff library.

Security Fix(es):

LibTIFF is a library for reading and writing TIFF (label image file format) files that are open source. This library contains some command-line tools for handling TIFF files. There is a security vulnerability in the 4.6.0 version of LibTIFF, which originates from the dereference of the null pointer of the function PS_Lvl2page in the file tools/tiff2ps.c.(CVE-2025-8534)

This provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.And contains command-line programs for manipulating TIFF format image files using the libtiff library.

Security Fix(es):

LibTIFF is a library for reading and writing TIFF (label image file format) files that are open source. This library contains some command-line tools for handling TIFF files. There is a security vulnerability in the 4.6.0 version of LibTIFF, which originates from the dereference of the null pointer of the function PS_Lvl2page in the file tools/tiff2ps.c.(CVE-2025-8534)

This provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.And contains command-line programs for manipulating TIFF format image files using the libtiff library.

Security Fix(es):

LibTIFF is a library for reading and writing TIFF (label image file format) files that are open source. This library contains some command-line tools for handling TIFF files. There is a security vulnerability in the 4.6.0 version of LibTIFF, which originates from the dereference of the null pointer of the function PS_Lvl2page in the file tools/tiff2ps.c.(CVE-2025-8534)

This provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.And contains command-line programs for manipulating TIFF format image files using the libtiff library.

Security Fix(es):

LibTIFF is a library for reading and writing TIFF (label image file format) files that are open source. This library contains some command-line tools for handling TIFF files. There is a security vulnerability in the 4.6.0 version of LibTIFF, which originates from the dereference of the null pointer of the function PS_Lvl2page in the file tools/tiff2ps.c.(CVE-2025-8534)

This provides support for the Tag Image File Format (TIFF), a widely used format for storing image data. The latest version of the TIFF specification is available on-line in several different formats.And contains command-line programs for manipulating TIFF format image files using the libtiff library.

Security Fix(es):

A vulnerability classified as problematic was found in libtiff 4.6.0 (Image Processing Software).The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.As an impact it is known to affect availability.It is possible to download the exploit at drive.google.com. It is declared as proof-of-concept. One of the maintainers explains, that "[t]his error only occurs if DEFER_STRILE_LOAD (defer-strile-load:BOOL=ON) or TIFFOpen( .. "rD") option is used."Applying the patch 6ba36f159fd396ad11bf6b7874554197736ecc8b is able to eliminate this problem. The bugfix is ready for download at gitlab.com.(CVE-2025-8534)

A vulnerability was found in LibTIFF up to 4.5.1 (Image Processing Software). It has been rated as critical.Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Impacted is confidentiality, integrity, and availability.Applying the patch 8a7a48d7a645992ca83062b3a1873c951661e2b3 is able to eliminate this problem. The bugfix is ready for download at gitlab.com.(CVE-2025-8851)

A vulnerability classified as problematic was found in libtiff 4.6.0. This vulnerability affects the function PS_Lvl2page of the file tools/tiff2ps.c of the component tiff2ps. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The name of the patch is 6ba36f159fd396ad11bf6b7874554197736ecc8b. It is recommended to apply a patch to fix this issue. One of the maintainers explains, that "[t]his error only occurs if DEFER_STRILE_LOAD (defer-strile-load:BOOL=ON) or TIFFOpen( .. "rD") option is used."

A vulnerability classified as problematic was found in libtiff 4.6.0. This vulnerability affects the function PS_Lvl2page of the file tools/tiff2ps.c of the component tiff2ps. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The name of the patch is 6ba36f159fd396ad11bf6b7874554197736ecc8b. It is recommended to apply a patch to fix this issue. One of the maintainers explains, that "[t]his error only occurs if DEFER_STRILE_LOAD (defer-strile-load:BOOL=ON) or TIFFOpen( .. "rD") option is used."

A vulnerability classified as problematic was found in libtiff 4.6.0. This vulnerability affects the function PS_Lvl2page of the file tools/tiff2ps.c of the component tiff2ps. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The name of the patch is 6ba36f159fd396ad11bf6b7874554197736ecc8b. It is recommended to apply a patch to fix this issue. One of the maintainers explains, that "[t]his error only occurs if DEFER_STRILE_LOAD (defer-strile-load:BOOL=ON) or TIFFOpen( .. "rD") option is used."

LibTIFF fax2ps tiff2pdf.c t2p_read_tiff_init null pointer dereference. (CVE-2024-13978) LibTIFF tiffmedian.c get_histogram use after free. (CVE-2025-8176) LibTIFF thumbnail.c setrow buffer overflow. (CVE-2025-8177) libtiff tiff2ps tiff2ps.c PS_Lvl2page null pointer dereference. (CVE-2025-8534) LibTIFF tiffcrop tiffcrop.c main memory corruption. (CVE-2025-8961) LibTIFF tiffcmp tiffcmp.c InitCCITTFax3 memory leak. (CVE-2025-9165) Libtiff: libtiff write-what-where. (CVE-2025-9900)

These are all security issues fixed in the libtiff-devel-32bit-4.7.0-8.1 package on the GA media of openSUSE Tumbleweed.

This update for tiff fixes the following issues:

tiff was updated to 4.7.1:

• Software configuration changes:

  • Define HAVE_JPEGTURBO_DUAL_MODE_8_12 and LERC_STATIC in tif_config.h.
  • CMake: define WORDS_BIGENDIAN via tif_config.h
  • doc/CMakeLists.txt: remove useless cmake_minimum_required()
  • CMake: fix build with LLVM/Clang 17 (fixes issue #651)
  • CMake: set CMP0074 new policy
  • Set LINKER_LANGUAGE for C targets with C deps
  • Export tiffxx cmake target (fixes issue #674)
  • autogen.sh: Enable verbose wget.
  • configure.ac: Syntax updates for Autoconf 2.71
  • autogen.sh: Re-implement based on autoreconf. Failure to update config.guess/config.sub does not return error (fixes issue #672)
  • CMake: fix CMake 4.0 warning when minimum required version is < 3.10.
  • CMake: Add build option tiff-static (fixes issue #709) Library changes:
  • Add TIFFOpenOptionsSetWarnAboutUnknownTags() for explicit control about emitting warnings for unknown tags. No longer emit warnings about unknown tags by default
  • tif_predict.c: speed-up decompression in some cases.

• Bug fixes:

  • tif_fax3: For fax group 3 data if no EOL is detected, reading is retried without synchronisation for EOLs. (fixes issue #54)
  • Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Improving handling when field_name = NULL. (fixes issue #532)
  • tiff.h: add COMPRESSION_JXL_DNG_1_7=52546 as used for JPEGXL compression in the DNG 1.7 specification
  • TIFFWriteDirectorySec: Increment string length for ASCII tags for codec tags defined with FIELD_xxx bits, as it is done for FIELD_CUSTOM tags. (fixes issue #648)
  • Do not error out on a tag whose tag count value is zero, just issue a warning. Fix parsing a private tag 0x80a6 (fixes issue #647)
  • TIFFDefaultTransferFunction(): give up beyond td_bitspersample = 24 Fixes https://github.com/OSGeo/gdal/issues/10875)
  • tif_getimage.c: Remove unnecessary calls to TIFFRGBAImageOK() (fixes issue #175)
  • Fix writing a Predictor=3 file with non-native endianness
  • _TIFFVSetField(): fix potential use of unallocated memory (out-of-bounds
  • read / nullptr dereference) in case of out-of-memory situation when dealing with custom tags (fixes issue #663)
  • tif_fax3.c: Error out for CCITT fax encoding if SamplesPerPixel is not equal 1 and PlanarConfiguration = Contiguous (fixes issue #26)
  • tif_fax3.c: error out after a number of times end-of-line or unexpected bad code words have been reached. (fixes issue #670)
  • Fix memory leak in TIFFSetupStrips() (fixes issue #665)
  • tif_zip.c: Provide zlib allocation functions. Otherwise for zlib built with -DZ_SOLO inflating will fail.
  • Fix memory leak in _TIFFSetDefaultCompressionState. (fixes issue #676)
  • tif_predict.c: Don’t overwrite input buffer of TIFFWriteScanline() if "prediction" is enabled. Use extra working buffer in PredictorEncodeRow(). (fixes issue #5)
  • tif_getimage.c: update some integer overflow checks (fixes issue #79)
  • tif_getimage.c: Fix buffer underflow crash for less raster rows at TIFFReadRGBAImageOriented() (fixes issue #704, bsc#1250413, CVE-2025-9900)
  • TIFFReadRGBAImage(): several fixes to avoid buffer overflows.
  • Correct passing arguments to TIFFCvtIEEEFloatToNative() and TIFFCvtIEEEDoubleToNative() if HAVE_IEEEFP is not defined. (fixes issue #699)
  • LZWDecode(): avoid nullptr dereference when trying to read again after EOI marker has been found with remaining output bytes (fixes issue #698)
  • TIFFSetSubDirectory(): check _TIFFCheckDirNumberAndOffset() return.
  • TIFFUnlinkDirectory() and TIFFWriteDirectorySec(): clear tif_rawcp when clearing tif_rawdata (fixes issue #711)
  • JPEGEncodeRaw(): error out if a previous scanline failed to be written, to avoid out-of-bounds access (fixes issue #714)
  • tif_jpeg: Fix bug in…

This update for tiff fixes the following issues:

• CVE-2025-9165: local execution manipulation leading to memory leak (bsc#1248330).
• CVE-2025-8534: null pointer dereference in function PS_Lvl2page (bsc#1247582).
• CVE-2025-8961: segmentation fault via main function of tiffcrop utility (bsc#1248117).

This update for tiff fixes the following issues:

• CVE-2025-9165: local execution manipulation leading to memory leak (bsc#1248330).
• CVE-2025-8534: null pointer dereference in function PS_Lvl2page (bsc#1247582).
• CVE-2025-8961: segmentation fault via main function of tiffcrop utility (bsc#1248117).

This update for tiff fixes the following issues:

• CVE-2025-9165: local execution manipulation leading to memory leak (bsc#1248330).
• CVE-2024-13978: null pointer dereference in component fax2ps (bsc#1247581)
• CVE-2025-8534: null pointer dereference in function PS_Lvl2page (bsc#1247582).
• CVE-2025-8961: segmentation fault via main function of tiffcrop utility (bsc#1248117).

This update for tiff fixes the following issues:

• Update to 4.7.1: Security:
  • CVE-2025-8177: Fixed possible buffer overflow in tools/thumbnail.c:setrow() when processing malformed TIFF files (bsc#1247106)
  • CVE-2025-8176: Fixed heap use-after-free in tools/tiffmedian.c (bsc#1247108)
  • CVE-2024-13978: libtiff: Fixed LibTIFF Null Pointer Dereference (bsc#1247581)
  • CVE-2025-8534: Fixed null pointer dereference in function PS_Lvl2page (bsc#1247582)
  • CVE-2025-8961: Fixed segmentation fault via main function of tiffcrop utility (bsc#1248117)
  • CVE-2025-9165: libtiff: Fixed local execution manipulation leading to memory leak (bsc#1248330)
  • CVE-2025-9900: libtiff: Fixed Write-What-Where via TIFFReadRGBAImageOriented (bsc#1250413) Software configuration changes:
  • Define HAVE_JPEGTURBO_DUAL_MODE_8_12 and LERC_STATIC in tif_config.h.
  • CMake: define WORDS_BIGENDIAN via tif_config.h
  • doc/CMakeLists.txt: remove useless cmake_minimum_required()
  • CMake: fix build with LLVM/Clang 17 (fixes issue #651)
  • CMake: set CMP0074 new policy
  • Set LINKER_LANGUAGE for C targets with C deps
  • Export tiffxx cmake target (fixes issue #674)
  • autogen.sh: Enable verbose wget.
  • configure.ac: Syntax updates for Autoconf 2.71
  • autogen.sh: Re-implement based on autoreconf. Failure to update config.guess/config.sub does not return error (fixes issue #672)
  • CMake: fix CMake 4.0 warning when minimum required version is < 3.10.
  • CMake: Add build option tiff-static (fixes issue #709) Library changes:
  • Add TIFFOpenOptionsSetWarnAboutUnknownTags() for explicit control about emitting warnings for unknown tags. No longer emit warnings about unknown tags by default
  • tif_predict.c: speed-up decompression in some cases. Bug fixes:
  • tif_fax3: For fax group 3 data if no EOL is detected, reading is retried without synchronisation for EOLs. (fixes issue #54)
  • Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Improving handling when field_name = NULL. (fixes issue #532)
  • tiff.h: add COMPRESSION_JXL_DNG_1_7=52546 as used for JPEGXL compression in the DNG 1.7 specification
  • TIFFWriteDirectorySec: Increment string length for ASCII tags for codec tags defined with FIELD_xxx bits, as it is done for FIELD_CUSTOM tags. (fixes issue #648)
  • Do not error out on a tag whose tag count value is zero, just issue a warning. Fix parsing a private tag 0x80a6 (fixes issue #647)
  • TIFFDefaultTransferFunction(): give up beyond td_bitspersample = 24
  • tif_getimage.c: Remove unnecessary calls to TIFFRGBAImageOK() (fixes issue #175)
  • Fix writing a Predictor=3 file with non-native endianness
  • _TIFFVSetField(): fix potential use of unallocated memory (out-of-bounds
  • read / nullptr dereference) in case of out-of-memory situation when dealing with custom tags (fixes issue #663)
  • tif_fax3.c: Error out for CCITT fax encoding if SamplesPerPixel is not equal 1 and PlanarConfiguration = Contiguous (fixes issue #26)
  • tif_fax3.c: error out after a number of times end-of-line or unexpected bad code words have been reached. (fixes issue #670)
  • Fix memory leak in TIFFSetupStrips() (fixes issue #665)
  • tif_zip.c: Provide zlib allocation functions. Otherwise for zlib built with -DZ_SOLO inflating will fail.
  • Fix memory leak in _TIFFSetDefaultCompressionState. (fixes issue #676)
  • tif_predict.c: Don’t overwrite input buffer of TIFFWriteScanline() if "prediction" is enabled. Use extra working buffer in PredictorEncodeRow(). (fixes issue #5)
  • tif_getimage.c: update some integer overflow checks (fixes issue #79)
  • TIFFReadRGBAImage(): several fixes to avoid buffer overflows.
  • Correct passing arguments to TIFFCvtIEEEFloatToNative() and TIFFCvtIEEEDoubleToNative() if HAVE_IEEEFP is not defined. (fixes issue #699)
  • LZWDecode(): avoid…

This update for tiff fixes the following issues:

tiff was updated to 4.7.1:

• Software configuration changes:

  • Define HAVE_JPEGTURBO_DUAL_MODE_8_12 and LERC_STATIC in tif_config.h.
  • CMake: define WORDS_BIGENDIAN via tif_config.h
  • doc/CMakeLists.txt: remove useless cmake_minimum_required()
  • CMake: fix build with LLVM/Clang 17 (fixes issue #651)
  • CMake: set CMP0074 new policy
  • Set LINKER_LANGUAGE for C targets with C deps
  • Export tiffxx cmake target (fixes issue #674)
  • autogen.sh: Enable verbose wget.
  • configure.ac: Syntax updates for Autoconf 2.71
  • autogen.sh: Re-implement based on autoreconf. Failure to update config.guess/config.sub does not return error (fixes issue #672)
  • CMake: fix CMake 4.0 warning when minimum required version is < 3.10.
  • CMake: Add build option tiff-static (fixes issue #709) Library changes:
  • Add TIFFOpenOptionsSetWarnAboutUnknownTags() for explicit control about emitting warnings for unknown tags. No longer emit warnings about unknown tags by default
  • tif_predict.c: speed-up decompression in some cases.

• Bug fixes:

  • tif_fax3: For fax group 3 data if no EOL is detected, reading is retried without synchronisation for EOLs. (fixes issue #54)
  • Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Improving handling when field_name = NULL. (fixes issue #532)
  • tiff.h: add COMPRESSION_JXL_DNG_1_7=52546 as used for JPEGXL compression in the DNG 1.7 specification
  • TIFFWriteDirectorySec: Increment string length for ASCII tags for codec tags defined with FIELD_xxx bits, as it is done for FIELD_CUSTOM tags. (fixes issue #648)
  • Do not error out on a tag whose tag count value is zero, just issue a warning. Fix parsing a private tag 0x80a6 (fixes issue #647)
  • TIFFDefaultTransferFunction(): give up beyond td_bitspersample = 24 Fixes https://github.com/OSGeo/gdal/issues/10875)
  • tif_getimage.c: Remove unnecessary calls to TIFFRGBAImageOK() (fixes issue #175)
  • Fix writing a Predictor=3 file with non-native endianness
  • _TIFFVSetField(): fix potential use of unallocated memory (out-of-bounds
  • read / nullptr dereference) in case of out-of-memory situation when dealing with custom tags (fixes issue #663)
  • tif_fax3.c: Error out for CCITT fax encoding if SamplesPerPixel is not equal 1 and PlanarConfiguration = Contiguous (fixes issue #26)
  • tif_fax3.c: error out after a number of times end-of-line or unexpected bad code words have been reached. (fixes issue #670)
  • Fix memory leak in TIFFSetupStrips() (fixes issue #665)
  • tif_zip.c: Provide zlib allocation functions. Otherwise for zlib built with -DZ_SOLO inflating will fail.
  • Fix memory leak in _TIFFSetDefaultCompressionState. (fixes issue #676)
  • tif_predict.c: Don’t overwrite input buffer of TIFFWriteScanline() if "prediction" is enabled. Use extra working buffer in PredictorEncodeRow(). (fixes issue #5)
  • tif_getimage.c: update some integer overflow checks (fixes issue #79)
  • tif_getimage.c: Fix buffer underflow crash for less raster rows at TIFFReadRGBAImageOriented() (fixes issue #704, bsc#1250413, CVE-2025-9900)
  • TIFFReadRGBAImage(): several fixes to avoid buffer overflows.
  • Correct passing arguments to TIFFCvtIEEEFloatToNative() and TIFFCvtIEEEDoubleToNative() if HAVE_IEEEFP is not defined. (fixes issue #699)
  • LZWDecode(): avoid nullptr dereference when trying to read again after EOI marker has been found with remaining output bytes (fixes issue #698)
  • TIFFSetSubDirectory(): check _TIFFCheckDirNumberAndOffset() return.
  • TIFFUnlinkDirectory() and TIFFWriteDirectorySec(): clear tif_rawcp when clearing tif_rawdata (fixes issue #711)
  • JPEGEncodeRaw(): error out if a previous scanline failed to be written, to avoid out-of-bounds access (fixes issue #714)
  • tif_jpeg: Fix bug in…

This update for tiff fixes the following issues:

tiff was updated to 4.7.1:

• Software configuration changes:

  • Define HAVE_JPEGTURBO_DUAL_MODE_8_12 and LERC_STATIC in tif_config.h.
  • CMake: define WORDS_BIGENDIAN via tif_config.h
  • doc/CMakeLists.txt: remove useless cmake_minimum_required()
  • CMake: fix build with LLVM/Clang 17 (fixes issue #651)
  • CMake: set CMP0074 new policy
  • Set LINKER_LANGUAGE for C targets with C deps
  • Export tiffxx cmake target (fixes issue #674)
  • autogen.sh: Enable verbose wget.
  • configure.ac: Syntax updates for Autoconf 2.71
  • autogen.sh: Re-implement based on autoreconf. Failure to update config.guess/config.sub does not return error (fixes issue #672)
  • CMake: fix CMake 4.0 warning when minimum required version is < 3.10.
  • CMake: Add build option tiff-static (fixes issue #709) Library changes:
  • Add TIFFOpenOptionsSetWarnAboutUnknownTags() for explicit control about emitting warnings for unknown tags. No longer emit warnings about unknown tags by default
  • tif_predict.c: speed-up decompression in some cases.

• Bug fixes:

  • tif_fax3: For fax group 3 data if no EOL is detected, reading is retried without synchronisation for EOLs. (fixes issue #54)
  • Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Improving handling when field_name = NULL. (fixes issue #532)
  • tiff.h: add COMPRESSION_JXL_DNG_1_7=52546 as used for JPEGXL compression in the DNG 1.7 specification
  • TIFFWriteDirectorySec: Increment string length for ASCII tags for codec tags defined with FIELD_xxx bits, as it is done for FIELD_CUSTOM tags. (fixes issue #648)
  • Do not error out on a tag whose tag count value is zero, just issue a warning. Fix parsing a private tag 0x80a6 (fixes issue #647)
  • TIFFDefaultTransferFunction(): give up beyond td_bitspersample = 24 Fixes https://github.com/OSGeo/gdal/issues/10875)
  • tif_getimage.c: Remove unnecessary calls to TIFFRGBAImageOK() (fixes issue #175)
  • Fix writing a Predictor=3 file with non-native endianness
  • _TIFFVSetField(): fix potential use of unallocated memory (out-of-bounds
  • read / nullptr dereference) in case of out-of-memory situation when dealing with custom tags (fixes issue #663)
  • tif_fax3.c: Error out for CCITT fax encoding if SamplesPerPixel is not equal 1 and PlanarConfiguration = Contiguous (fixes issue #26)
  • tif_fax3.c: error out after a number of times end-of-line or unexpected bad code words have been reached. (fixes issue #670)
  • Fix memory leak in TIFFSetupStrips() (fixes issue #665)
  • tif_zip.c: Provide zlib allocation functions. Otherwise for zlib built with -DZ_SOLO inflating will fail.
  • Fix memory leak in _TIFFSetDefaultCompressionState. (fixes issue #676)
  • tif_predict.c: Don’t overwrite input buffer of TIFFWriteScanline() if "prediction" is enabled. Use extra working buffer in PredictorEncodeRow(). (fixes issue #5)
  • tif_getimage.c: update some integer overflow checks (fixes issue #79)
  • tif_getimage.c: Fix buffer underflow crash for less raster rows at TIFFReadRGBAImageOriented() (fixes issue #704, bsc#1250413, CVE-2025-9900)
  • TIFFReadRGBAImage(): several fixes to avoid buffer overflows.
  • Correct passing arguments to TIFFCvtIEEEFloatToNative() and TIFFCvtIEEEDoubleToNative() if HAVE_IEEEFP is not defined. (fixes issue #699)
  • LZWDecode(): avoid nullptr dereference when trying to read again after EOI marker has been found with remaining output bytes (fixes issue #698)
  • TIFFSetSubDirectory(): check _TIFFCheckDirNumberAndOffset() return.
  • TIFFUnlinkDirectory() and TIFFWriteDirectorySec(): clear tif_rawcp when clearing tif_rawdata (fixes issue #711)
  • JPEGEncodeRaw(): error out if a previous scanline failed to be written, to avoid out-of-bounds access (fixes issue #714)
  • tif_jpeg: Fix bug in…

This update for tiff fixes the following issues:

tiff was updated to 4.7.1:

Software configuration changes:

• Define HAVE_JPEGTURBO_DUAL_MODE_8_12 and LERC_STATIC in tif_config.h.
• CMake: define WORDS_BIGENDIAN via tif_config.h
• doc/CMakeLists.txt: remove useless cmake_minimum_required()
• CMake: fix build with LLVM/Clang 17 (fixes issue #651)
• CMake: set CMP0074 new policy
• Set LINKER_LANGUAGE for C targets with C deps
• Export tiffxx cmake target (fixes issue #674)
• autogen.sh: Enable verbose wget.
• configure.ac: Syntax updates for Autoconf 2.71
• autogen.sh: Re-implement based on autoreconf. Failure to update config.guess/config.sub does not return error (fixes issue #672)
• CMake: fix CMake 4.0 warning when minimum required version is < 3.10.
• CMake: Add build option tiff-static (fixes issue #709)

Library changes:

• Add TIFFOpenOptionsSetWarnAboutUnknownTags() for explicit control about emitting warnings for unknown tags. No longer emit warnings about unknown tags by default
• tif_predict.c: speed-up decompression in some cases.

Bug fixes:

• tif_fax3: For fax group 3 data if no EOL is detected, reading is retried without synchronisation for EOLs. (fixes issue #54)
• Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Updating TIFFMergeFieldInfo() with read_count=write_count=0 for FIELD_IGNORE. Improving handling when field_name = NULL. (fixes issue #532)
• tiff.h: add COMPRESSION_JXL_DNG_1_7=52546 as used for JPEGXL compression in the DNG 1.7 specification
• TIFFWriteDirectorySec: Increment string length for ASCII tags for codec tags defined with FIELD_xxx bits, as it is done for FIELD_CUSTOM tags. (fixes issue #648)
• Do not error out on a tag whose tag count value is zero, just issue a warning. Fix parsing a private tag 0x80a6 (fixes issue #647)
• TIFFDefaultTransferFunction(): give up beyond td_bitspersample = 24 Fixes https://github.com/OSGeo/gdal/issues/10875)
• tif_getimage.c: Remove unnecessary calls to TIFFRGBAImageOK() (fixes issue #175)
• Fix writing a Predictor=3 file with non-native endianness
• _TIFFVSetField(): fix potential use of unallocated memory (out-of-bounds
• read / nullptr dereference) in case of out-of-memory situation when dealing with custom tags (fixes issue #663)
• tif_fax3.c: Error out for CCITT fax encoding if SamplesPerPixel is not equal 1 and PlanarConfiguration = Contiguous (fixes issue #26)
• tif_fax3.c: error out after a number of times end-of-line or unexpected bad code words have been reached. (fixes issue #670)
• Fix memory leak in TIFFSetupStrips() (fixes issue #665)
• tif_zip.c: Provide zlib allocation functions. Otherwise for zlib built with -DZ_SOLO inflating will fail.
• Fix memory leak in _TIFFSetDefaultCompressionState. (fixes issue #676)
• tif_predict.c: Don’t overwrite input buffer of TIFFWriteScanline() if "prediction" is enabled. Use extra working buffer in PredictorEncodeRow(). (fixes issue #5)
• tif_getimage.c: update some integer overflow checks (fixes issue #79)
• tif_getimage.c: Fix buffer underflow crash for less raster rows at TIFFReadRGBAImageOriented() (fixes issue #704, bsc#1250413, CVE-2025-9900)
• TIFFReadRGBAImage(): several fixes to avoid buffer overflows.
• Correct passing arguments to TIFFCvtIEEEFloatToNative() and TIFFCvtIEEEDoubleToNative() if HAVE_IEEEFP is not defined. (fixes issue #699)
• LZWDecode(): avoid nullptr dereference when trying to read again after EOI marker has been found with remaining output bytes (fixes issue #698)
• TIFFSetSubDirectory(): check _TIFFCheckDirNumberAndOffset() return.
• TIFFUnlinkDirectory() and TIFFWriteDirectorySec(): clear tif_rawcp when clearing tif_rawdata (fixes issue #711)
• JPEGEncodeRaw(): error out if a previous scanline failed to be written, to avoid out-of-bounds access (fixes issue #714)
• tif_jpeg: Fix bug…

It was discovered that LibTIFF incorrectly handled certain memory operations when using tiffmedian tool. An attacker could trick a user into processing a specially crafted tiff image file and potentially use this issue to cause a denial of service. (CVE-2025-8176)

It was discovered that LibTIFF did not properly perform bounds checking in certain operations when using thumbnail tool. An attacker could trick a user into processing a specially crafted tiff image file and potentially use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2025-8177)

It was discovered that LibTIFF incorrectly handled certain memory
operations when using tiff2ps tool. An attacker could trick a user into processing a specially crafted tiff image file and potentially use this issue to cause a denial of service. (CVE-2025-8534)

It was discovered that LibTIFF did not properly perform bounds checking
in certain operations when using tiffcrop tool. An attacker could trick
a user into processing a specially crafted tiff image file and
potentially use this issue to cause a denial of service. (CVE-2025-8851)