--- gd-2.0.33/gd.c
+++ gd-2.0.33/gd.c
@@ -133,9 +112,27 @@ BGD_DECLARE(gdImagePtr) gdImageCreateTrueColor (int sx, int sy)
 {
   int i;
   gdImagePtr im;
+
+  if (overflow2(sx, sy)) {
+    return NULL;
+  }
+
+  if (overflow2(sizeof (int *), sy)) {
+    return 0;
+  }
+
+  if (overflow2(sizeof(int), sx)) {
+    return NULL;
+  }
+
   im = (gdImage *) gdMalloc (sizeof (gdImage));
   memset (im, 0, sizeof (gdImage));
+
   im->tpixels = (int **) gdMalloc (sizeof (int *) * sy);
+  if (!im->tpixels) {
+    gdFree(im);
+    return NULL;
+  }
   im->polyInts = 0;
   im->polyAllocated = 0;
   im->brush = 0;