Stay Secure with the Latest Linux Advisories

security advisorycriticalubuntu

Ubuntu 16.04 ESM USN-5089-2 Critical CA Certificate Removal

A certificate about to expire was removed from ca-certificates.. =========================================================================Ubuntu Security Notice USN-5089-2 September 23, 2021 ca-certificates update ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: A certificate about to expire was removed from ca-certificates. Software Description: - ca-certificates: Common CA certificates Details: USN-5089-1 updated ca-certificates. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: The ca-certificates package contained a CA certificate that will expire on 2021-09-30 and will cause connectivity issues. This update removes the “DST Root CA X3” CA. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: ca-certificates 20210119~16.04.1ubuntu0.1~esm1 Ubuntu 14.04 ESM: ca-certificates 20190110~14.04.1~esm2 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5089-2 https://ubuntu.com/security/notices/USN-5089-1 . Resolve connectivity issues linked to an expiring CA certificate in Ubuntu 14.04 and 16.04 ESM by following these essential steps for updates. ca-certificates update, connectivity issue, expiring certificate, Ubuntu security. . Severity: Critical. LinuxSecurity.com Team

Sep 23, 2021 •Critical Ubuntu