Ubuntu Security Notice USN-6673-2

Ubuntu Security Notice 6673-2 - USN-6673-1 provided a security update for python-cryptography. This update provides the corresponding update for Ubuntu 16.04 LTS. Hubert Kario discovered that python-cryptography incorrectly handled errors returned by the OpenSSL API when processing incorrect padding in RSA PKCS#1 v1.5. A remote attacker could possibly use this issue to expose confidential or sensitive information.

api attacker confidential cryptography errors expose issue lts notice openssl padding pkcs python rsa security security notice security update sensitive ubuntu update usn