The Diffie-Hellman (DH) key exchange algorithm implementation in the OpenJDK Security component failed to validate public Diffie-Hellman parameters properly. This could allow OpenJDK implementation to accept and use weak parameters, making it possible for attackers to recover the negotiated key.

It was discovered that the RSA algorithm in the OpenJDK Security component did not sufficiently preform "blinding" while performing operations using private keys. An attacker able to measure timing differences of those operations could possibly leak information about the keys used.