========================================================================== Ubuntu Security Notice USN-6663-2 March 13, 2024
openssl update ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: Add implicit rejection in PKCS#1 v1.5 in OpenSSL. Software Description: - openssl: Secure Socket Layer (SSL) cryptographic library and tools Details: USN-6663-1 provided a security update for OpenSSL. This update provides the corresponding update for Ubuntu 16.04 LTS. Original advisory details: 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. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS (Available with Ubuntu Pro): libssl-doc 1.0.2g-1ubuntu4.20+esm12 libssl1.0.0 1.0.2g-1ubuntu4.20+esm12 openssl 1.0.2g-1ubuntu4.20+esm12 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6663-2 https://ubuntu.com/security/notices/USN-6663-1 https://launchpad.net/bugs/2054090
OpenPGP_0x96F770C739BC5ACE.asc
Description: OpenPGP public key
OpenPGP_signature.asc
Description: OpenPGP digital signature
