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Date: Tue, 2 Feb 2016 18:51:24 +0000
From: Eric Soroos <eric@...oos.net>
To: oss-security@...ts.openwall.com
Cc: cve-assign@...re.org
Subject: CVE Request -- Buffer overflow in Python-Pillow and PIL

Hello, 

I’d like to request a CVE number for all versions of Python Pillow <= 3.1.0  and PIL == 1.1.7 (at the least). 

There is a buffer overflow in PcdDecode.c, where the decoder writes assuming 4 bytes per pixel into a 3 byte per pixel wide buffer, allowing writing 768 bytes off the end of the buffer. This overwrites objects in Python's stack, leading to a crash. 

This issue and the patch are public:  https://github.com/python-pillow/Pillow/pull/1706

Thanks, 

Eric

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