--- tetex-src-3.0/libs/gd/gd_png.c.cve-2004-0941	2004-10-28 12:09:52.000000000 -0600
+++ tetex-src-3.0/libs/gd/gd_png.c	2006-06-27 05:16:06.577239262 -0600
@@ -188,6 +188,14 @@ BGD_DECLARE(gdImagePtr) gdImageCreateFro
 
   png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
 		&interlace_type, NULL, NULL);
+  if (overflow2(sizeof (int), width)) 
+    {
+      return NULL;
+    }
+  if (overflow2(sizeof (int) * width, height)) 
+    {
+      return NULL;
+    }  
   if ((color_type == PNG_COLOR_TYPE_RGB) ||
       (color_type == PNG_COLOR_TYPE_RGB_ALPHA))
     {