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FreeBSD: py-imaging, py-pillow -- Buffer overflow in PCD decoder

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FreeBSD: py-imaging, py-pillow -- Buffer overflow in PCD decoder

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/02/2016
Created
07/25/2018
Added
02/12/2016
Modified
02/12/2016

Description

The Pillow maintainers report: In all versions of Pillow, dating back at least to the last PIL 1.1.7 release, PcdDecode.c has a buffer overflow error. The state.buffer for PcdDecode.c is allocated based on a 3 bytes per pixel sizing, where PcdDecode.c wrote into the buffer assuming 4 bytes per pixel. This writes 768 bytes beyond the end of the buffer into other Python object storage. In some cases, this causes a segfault, in others an internal Python malloc error.

Solution(s)

  • freebsd-upgrade-package-py27-imaging
  • freebsd-upgrade-package-py27-pillow

References

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