USN-4377-2: ca-certificates update ca-certificates update A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 ESM Ubuntu 12.04 ESM Summary An expired certificate was removed from ca-certificates. Software Description ca-certificates – Common CA certificates Details USN-4377-1 updated ca-certificates. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: The ca-certificates package contained an expired CA certificate that caused connectivity issues. This update removes the "AddTrust External Root" CA. In addition, on Ubuntu 12.04 ESM and Ubuntu 14.04 ESM, this update refreshes the included certificates to those contained in the 20190110 package. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM ca-certificates – 20190110~14.04.1~esm1 Ubuntu 12.04 ESM ca-certificates – 20190110~12.04.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, [ more… ]