Weijun Wang b5b5a5b8e5 8336667: IAE in DerInputStream.toByteArray
Reviewed-by: valeriep
2024-07-25 17:11:59 +00:00

51 lines
1.9 KiB
Java

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/*
* @test
* @bug 8336667
* @summary Ensure the unused bytes are calculated correctly when converting
* indefinite length BER to DER
* @modules java.base/sun.security.util
* @library /test/lib
*/
import jdk.test.lib.Asserts;
import sun.security.util.DerInputStream;
import java.util.HexFormat;
public class PoC {
public static void main(String[] args) throws Exception {
// A BER indefinite encoding with some unused bytes at the end
var data = HexFormat.of().parseHex("""
2480 0401AA 0401BB 0000 -- 2 byte string
010100 -- boolean false
12345678 -- 4 unused bytes"""
.replaceAll("(\\s|--.*)", ""));
var dis = new DerInputStream(data, 0, data.length - 4, true);
Asserts.assertEQ(dis.getDerValue().getOctetString().length, 2);
Asserts.assertFalse(dis.getDerValue().getBoolean());
dis.atEnd();
}
}