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Unbounded recursion in Pillow when parsing PDF page trees or trailer chains can cause severe CPU and memory exhaustion or crashes during PDF append operations.
An issue in Pillow allows a maliciously crafted GIF to cause excessive memory allocation when an application handles decompression errors during frame seeking and reuses the image object. This can lead to memory exhaustion and denial of service.
Pillow is vulnerable to an out-of-bounds write when processing zero-width PPM or PGM images during morphology operations. Opening a specially crafted image can cause an application crash and potential memory corruption.
An out-of-bounds read vulnerability in Pillow's tiled-TIFF decoder can allow a specially crafted TIFF image to crash the process or expose adjacent heap memory into the decoded pixel buffer.
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