Pillow/docs/releasenotes/9.1.1.rst

9.1.1
-----

Security
========

This release addresses several security issues.

:cve:`2022-30595`: Heap buffer overflow
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

When reading a TGA file with RLE packets that cross scan lines,
Pillow reads the information past the end of the first line without deducting that
from the length of the remaining file data. This vulnerability was introduced in Pillow
9.1.0, and can cause a heap buffer overflow.

Decompression bomb check fix
^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Opening an image with a zero or negative height has been found to bypass a
decompression bomb check. This will now raise a :py:exc:`SyntaxError` instead, in turn
raising a ``PIL.UnidentifiedImageError``.