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93 lines
2.8 KiB
ReStructuredText
93 lines
2.8 KiB
ReStructuredText
8.1.0
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-----
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Deprecations
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============
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FreeType 2.7
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^^^^^^^^^^^^
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Support for FreeType 2.7 is deprecated and will be removed in Pillow 9.0.0 (2022-01-02),
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when FreeType 2.8 will be the minimum supported.
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We recommend upgrading to at least FreeType `2.10.4`_, which fixed a severe
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vulnerability introduced in FreeType 2.6 (:cve:`CVE-2020-15999`).
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.. _2.10.4: https://sourceforge.net/projects/freetype/files/freetype2/2.10.4/
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Makefile
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^^^^^^^^
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The 'install-venv' target has been deprecated.
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API Additions
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=============
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Append images to ICO
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^^^^^^^^^^^^^^^^^^^^
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When saving an ICO image, the file may contain versions of the image at different
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sizes. By default, Pillow will scale down the main image to create these copies.
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With this release, a list of images can be provided to the ``append_images`` parameter
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when saving, to replace the scaled down versions. This is the same functionality that
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already exists for the ICNS format.
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Security
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========
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This release includes security fixes.
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* An out-of-bounds read when saving TIFFs with custom metadata through LibTIFF
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* An out-of-bounds read when saving a GIF of 1px width
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* :cve:`CVE-2020-35653` Buffer read overrun in PCX decoding
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The PCX image decoder used the reported image stride to calculate the row buffer,
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rather than calculating it from the image size. This issue dates back to the PIL fork.
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Thanks to Google's `OSS-Fuzz`_ project for finding this.
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* :cve:`CVE-2020-35654` Fix TIFF OOB Write error
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OOB Write in TiffDecode.c when reading corrupt YCbCr files in some LibTIFF versions
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(4.1.0/Ubuntu 20.04, but not 4.0.9/Ubuntu 18.04). In some cases LibTIFF's
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interpretation of the file is different when reading in RGBA mode, leading to an Out of
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bounds write in TiffDecode.c. This potentially affects Pillow versions from 6.0.0 to
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8.0.1, depending on the version of LibTIFF. This was reported through `Tidelift`_.
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* :cve:`CVE-2020-35655` Fix for SGI Decode buffer overrun
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4 byte read overflow in SGIRleDecode.c, where the code was not correctly checking the
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offsets and length tables. Independently reported through `Tidelift`_ and Google's
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`OSS-Fuzz`_. This vulnerability covers Pillow versions 4.3.0->8.0.1.
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.. _Tidelift: https://tidelift.com/subscription/pkg/pypi-pillow?utm_source=pillow&utm_medium=referral&utm_campaign=docs
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.. _OSS-Fuzz: https://github.com/google/oss-fuzz
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Dependencies
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^^^^^^^^^^^^
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OpenJPEG in the macOS and Linux wheels has been updated from 2.3.1 to 2.4.0, including
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security fixes.
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LibTIFF in the macOS and Linux wheels has been updated from 4.1.0 to 4.2.0, including
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security fixes discovered by fuzzers.
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Other Changes
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=============
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Makefile
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^^^^^^^^
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The 'co' target has been removed.
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PyPy wheels
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^^^^^^^^^^^
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Wheels have been added for PyPy 3.7.
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PySide6
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^^^^^^^
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Support has been added for PySide6. If it is installed, it will be used instead of
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PyQt5 or PySide2, since it is based on a newer Qt.
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