Stack-based Buffer Over-read in WriteWEBPImage in GraphicsMagick 1.4 snapshot-20171217 Q8

CVE-2017-17913 · MEDIUM Severity

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

In GraphicsMagick 1.4 snapshot-20171217 Q8, there is a stack-based buffer over-read in WriteWEBPImage in coders/webp.c, related to an incompatibility with libwebp versions, 0.5.0 and later, that use a different structure type.

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