Uninitialized Palette Leak in ReadGIFImage Function

CVE-2017-15277 · MEDIUM Severity

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

ReadGIFImage in coders/gif.c in ImageMagick 7.0.6-1 and GraphicsMagick 1.3.26 leaves the palette uninitialized when processing a GIF file that has neither a global nor local palette. If the affected product is used as a library loaded into a process that operates on interesting data, this data sometimes can be leaked via the uninitialized palette.

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