File GraphicsMagick-CVE-2017-16547.patch of Package GraphicsMagick.7727

diff -r 597ff91f38a9 -r 785758bbbfcc magick/render.c
--- a/magick/render.c	Fri Oct 27 08:10:34 2017 -0500
+++ b/magick/render.c	Sat Oct 28 13:54:22 2017 -0500
@@ -2360,6 +2360,11 @@
                     continue;
                   break;
                 }
+                if (p+5U > q)
+                  {
+                    status=MagickFail;
+                    break;
+                  }
                 (void) strncpy(token,p,q-p-4);
                 token[q-p-4]='\0';
                 (void) SetImageAttribute(image,name,token);
@@ -2433,6 +2438,11 @@
                     continue;
                   break;
                 }
+                if (p+5U > q)
+                  {
+                    status=MagickFail;
+                    break;
+                  }
                 (void) strncpy(token,p,q-p-4);
                 token[q-p-4]='\0';
                 bounds.x1=graphic_context[n]->affine.sx*segment.x1+
@@ -2564,6 +2574,11 @@
                     continue;
                   break;
                 }
+                if (p+5U > q)
+                  {
+                    status=MagickFail;
+                    break;
+                  }
                 (void) strncpy(token,p,q-p-4);
                 token[q-p-4]='\0';
                 FormatString(key,"[%.1024s]",name);