A new release of the Ubuntu Cloud Images for stable Ubuntu release 16.04 LTS (Xenial Xerus) is available at [1]. These new images superseded the existing images [2]. Images are available for download or immediate use on EC2 via publish AMI ids. Users who wish to update their existing installations can do so with:
   'sudo apt-get update && sudo apt-get dist-upgrade && sudo reboot'.

The following packages have been updated. Please see the full changelogs
for a complete listing of changes:
 * apport: 2.20.1-0ubuntu2.26 => 2.20.1-0ubuntu2.27 


The following is a complete changelog for this image.
new: {}
removed: {}
changed: ['apport', 'python3-apport', 'python3-problem-report']
new snaps: {}
removed snaps: {}
changed snaps: []
==== apport: 2.20.1-0ubuntu2.26 => 2.20.1-0ubuntu2.27 ====
====     apport python3-apport python3-problem-report
  * Various security hardening fixes (LP: #1903332)
    - apport/fileutils.py: drop privileges in the correct order, limit
      settings file size.
    - apport/apport/report.py: properly drop privileges, limit ignore file
      size.
    - data/apport: drop supplemental groups.

--
[1] http://cloud-images.ubuntu.com/releases/xenial/release-20201112/
[2] http://cloud-images.ubuntu.com/releases/xenial/release-20201111.1/