guix-devel/gnu/packages/patches/graphicsmagick-CVE-2017-129...

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This patch comes from http://hg.code.sf.net/p/graphicsmagick/code/rev/95d00d55e978.
diff -ur a/coders/sun.c b/coders/sun.c
--- a/coders/sun.c 2016-05-30 13:19:54.000000000 -0400
+++ b/coders/sun.c 2017-08-18 18:00:00.191023610 -0400
@@ -1,5 +1,5 @@
/*
-% Copyright (C) 2003-2015 GraphicsMagick Group
+% Copyright (C) 2003-2017 GraphicsMagick Group
% Copyright (C) 2002 ImageMagick Studio
% Copyright 1991-1999 E. I. du Pont de Nemours and Company
%
@@ -577,6 +577,7 @@
for (bit=7; bit >= 0; bit--)
{
index=((*p) & (0x01 << bit) ? 0x01 : 0x00);
+ VerifyColormapIndex(image,index);
indexes[x+7-bit]=index;
q[x+7-bit]=image->colormap[index];
}
@@ -587,6 +588,7 @@
for (bit=7; bit >= (long) (8-(image->columns % 8)); bit--)
{
index=((*p) & (0x01 << bit) ? 0x01 : 0x00);
+ VerifyColormapIndex(image,index);
indexes[x+7-bit]=index;
q[x+7-bit]=image->colormap[index];
}