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Ubuntu Security Notice 6663-2 - USN-6663-1 provided a security update for OpenSSL. This update provides the corresponding update for Ubuntu 16.04 LTS. As a security improvement, this update prevents OpenSSL from returning an error when detecting wrong padding in PKCS#1 v1.5 RSA, to prevent its use in possible Bleichenbacher timing attacks.

Ubuntu Security Notice 6663-2 - USN-6663-1 provided a security update for OpenSSL. This update provides the corresponding update for Ubuntu 16.04 LTS. As a security improvement, this update prevents OpenSSL from returning an error when detecting wrong padding in PKCS#1 v1.5 RSA, to prevent its use in possible Bleichenbacher timing attacks.