Add CVE to #66387

Author: kaplanlior

NEWS

@@ -1008,7 +1008,8 @@ PHP                                                                        NEWS
 
 - GD:
   . Fixed bug #53156 (imagerectangle problem with point ordering). (cmb)
-  . Fixed bug #66387 (Stack overflow with imagefilltoborder). (cmb)
+  . Fixed bug #66387 (Stack overflow with imagefilltoborder). (CVE-2015-8874)
+    (cmb)
   . Fixed bug #70102 (imagecreatefromwebm() shifts colors). (cmb)
   . Fixed bug #66590 (imagewebp() doesn't pad to even length). (cmb)
   . Fixed bug #66882 (imagerotate by -90 degrees truncates image by 1px). (cmb)