Ubuntu Security Notice 2897-1 – Hanno Boeck discovered that Nettle incorrectly handled carry propagation in the NIST P-256 elliptic curve. Hanno Boeck discovered that Nettle incorrectly handled carry propagation in the NIST P-384 elliptic curve. Niels Moeller discovered that Nettle incorrectly handled carry propagation in the NIST P-256 elliptic curve. Various other issues were also addressed.