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49 lines
1.8 KiB
ReStructuredText
49 lines
1.8 KiB
ReStructuredText
8.3.2
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-----
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Security
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========
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:cve:`2021-23437`: Avoid potential ReDoS (regular expression denial of service)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Avoid a potential ReDoS (regular expression denial of service) in :py:class:`~PIL.ImageColor`'s
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:py:meth:`~PIL.ImageColor.getrgb` by raising :py:exc:`ValueError` if the color specifier is
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too long. Present since Pillow 5.2.0.
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Fix 6-byte out-of-bounds (OOB) read
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Fix 6-byte out-of-bounds (OOB) read. The previous bounds check in ``FliDecode.c`` incorrectly
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calculated the required read buffer size when copying a chunk, potentially reading six extra
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bytes off the end of the allocated buffer from the heap. Present since Pillow 7.1.0.
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This bug was found by Google's `OSS-Fuzz`_ `CIFuzz`_ runs.
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Other changes
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=============
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Python 3.10 wheels
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^^^^^^^^^^^^^^^^^^
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Pillow now includes binary wheels for Python 3.10.
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The Python 3.10 release candidate was released on 2021-08-03 with the final release due
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2021-10-04 (:pep:`619`). The CPython core team strongly encourages maintainers of
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third-party Python projects to prepare for 3.10 compatibility. And as there are `no ABI
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changes`_ planned we are releasing wheels to help others prepare for 3.10, and ensure
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Pillow can be used immediately on release day of 3.10.0 final.
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Fixed regressions
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^^^^^^^^^^^^^^^^^
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* Ensure TIFF ``RowsPerStrip`` is multiple of 8 for JPEG compression (:pr:`5588`).
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* Updates for :py:class:`~PIL.ImagePalette` channel order (:pr:`5599`).
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* Hide FriBiDi shim symbols to avoid conflict with real FriBiDi library (:pr:`5651`).
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.. _OSS-Fuzz: https://github.com/google/oss-fuzz
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.. _CIFuzz: https://google.github.io/oss-fuzz/getting-started/continuous-integration/
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.. _no ABI changes: https://www.python.org/downloads/release/python-3100rc1/
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