GfxColorSpace *GfxIndexedColorSpace::copy() {
  GfxIndexedColorSpace *cs;

  cs = new GfxIndexedColorSpace(base->copy(), indexHigh);
  memcpy(cs->lookup, lookup,
	 (indexHigh + 1) * base->getNComps() * sizeof(Guchar));
  return cs;
}

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