Ubuntu 5473-2: ca-certificates update
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: ca-certificates 20211016~16.04.1~esm1 In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-5473-2
https://ubuntu.com/security/notices/USN-5473-1
https://launchpad.net/bugs/1976631
Package Information