# Tests potential DOS of IcnsImagePlugin with 0 length block. # Run from anywhere that PIL is importable. from PIL import Image from PIL._util import py3 from io import BytesIO if py3: Image.open(BytesIO(bytes("icns\x00\x00\x00\x10hang\x00\x00\x00\x00", "latin-1"))) else: Image.open(BytesIO(bytes("icns\x00\x00\x00\x10hang\x00\x00\x00\x00")))