Heap-based Buffer Over-read in ReadGRAYImage of GraphicsMagick 1.3.26

CVE-2017-17503 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:P/A:P

ReadGRAYImage in coders/gray.c in GraphicsMagick 1.3.26 has a magick/import.c ImportGrayQuantumType heap-based buffer over-read via a crafted file.

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