poppler_page_get_thumbnail_size (PopplerPage *page,
				 int         *width,
				 int         *height)
{
  Object thumb;
  Dict *dict;
  gboolean retval = FALSE;

  g_return_val_if_fail (POPPLER_IS_PAGE (page), FALSE);
  g_return_val_if_fail (width != NULL, FALSE);
  g_return_val_if_fail (height != NULL, FALSE);

  page->page->getThumb (&thumb);
  if (!thumb.isStream ())
    {
      thumb.free ();
      return FALSE;
    }

  dict = thumb.streamGetDict();

  /* Theoretically, this could succeed and you would still fail when
   * loading the thumb */
  if (dict->lookupInt ("Width", "W", width)  &&
      dict->lookupInt ("Height", "H", height))
    retval = TRUE;

  thumb.free ();

  return retval;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.