--- libwmf-0.2.8.4/src/extra/gd/gd.c

+++ libwmf-0.2.8.4/src/extra/gd/gd.c

@@ -106,6 +106,18 @@

   gdImagePtr im;

   unsigned long cpa_size;

+  if (overflow2(sx, sy)) {

+    return NULL;

+  }

+

+  if (overflow2(sizeof (int *), sy)) {

+    return NULL;

+  }

+

+  if (overflow2(sizeof(int), sx)) {

+    return NULL;

+  }

+

   im = (gdImage *) gdMalloc (sizeof (gdImage));

   if (im == 0) return 0;

   memset (im, 0, sizeof (gdImage));