--- libwmf-0.2.8.3/src/extra/gd/gd_png.c.can-2004-0990	2001-05-19 07:09:34.000000000 -0600

+++ libwmf-0.2.8.3/src/extra/gd/gd_png.c	2006-06-29 06:08:34.961119463 -0600

@@ -181,6 +181,14 @@ gdImageCreateFromPngCtx (gdIOCtx * infil

   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))

     {