Pillow/docs/releasenotes/8.1.1.rst

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8.1.1
-----
Security
========
:cve:`2021-25289`: The previous fix for :cve:`2020-35654` was insufficient
due to incorrect error checking in ``TiffDecode.c``.
:cve:`2021-25290`: In ``TiffDecode.c``, there is a negative-offset ``memcpy``
with an invalid size.
:cve:`2021-25291`: In ``TiffDecode.c``, invalid tile boundaries could lead to
an out-of-bounds read in ``TIFFReadRGBATile``.
:cve:`2021-25292`: The PDF parser has a catastrophic backtracking regex
that could be used as a DOS attack.
:cve:`2021-25293`: There is an out-of-bounds read in ``SgiRleDecode.c``,
since Pillow 4.3.0.
Other Changes
=============
A crash with the feature flags for libimagequant, libjpeg-turbo, WebP and XCB on
unreleased Python 3.10 has been fixed (:issue:`5193`).