A new release of the Ubuntu Cloud Images for stable Ubuntu release 20.04 LTS (Focal Fossa) 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 These new images superseded the existing images [2].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: 2.20.11-0ubuntu27.11 => 2.20.11-0ubuntu27.12 
 * efivar: 37-2ubuntu2 => 37-2ubuntu2.1 
 * krb5: 1.17-6ubuntu4 => 1.17-6ubuntu4.1 
 * libmaxminddb: 1.4.2-0ubuntu1 => 1.4.2-0ubuntu1.20.04.1 
 * linux-meta: 5.4.0.53.56 => 5.4.0.54.57 
 * linux-signed: 5.4.0-53.59 => 5.4.0-54.60 
 * openldap: 2.4.49+dfsg-2ubuntu1.4 => 2.4.49+dfsg-2ubuntu1.5 
 * software-properties: 0.98.9.2 => 0.98.9.3 


The following is a complete changelog for this image.
new: {'linux-headers-5.4.0-54-generic': '5.4.0-54.60', 'linux-modules-5.4.0-54-generic': '5.4.0-54.60', 'linux-headers-5.4.0-54': '5.4.0-54.60'}
removed: {'linux-headers-5.4.0-53': '5.4.0-53.59', 'linux-headers-5.4.0-53-generic': '5.4.0-53.59', 'linux-modules-5.4.0-53-generic': '5.4.0-53.59'}
changed: ['apport', 'krb5-locales', 'libefiboot1:amd64', 'libefivar1:amd64', 'libgssapi-krb5-2:amd64', 'libk5crypto3:amd64', 'libkrb5-3:amd64', 'libkrb5support0:amd64', 'libldap-2.4-2:amd64', 'libldap-common', 'libmaxminddb0:amd64', 'linux-headers-generic', 'linux-headers-virtual', 'linux-image-5.4.0-54-generic', 'linux-image-virtual', 'linux-virtual', 'python3-apport', 'python3-problem-report', 'python3-software-properties', 'software-properties-common']
new snaps: {}
removed snaps: {}
changed snaps: []
==== apport: 2.20.11-0ubuntu27.11 => 2.20.11-0ubuntu27.12 ====
====     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.
==== efivar: 37-2ubuntu2 => 37-2ubuntu2.1 ====
====     libefiboot1:amd64 libefivar1:amd64
  * Add support for nvme-fabrics and nvme-subsystem devices. LP: #1891718.
==== krb5: 1.17-6ubuntu4 => 1.17-6ubuntu4.1 ====
====     krb5-locales libgssapi-krb5-2:amd64 libk5crypto3:amd64 libkrb5-3:amd64 libkrb5support0:amd64
  * SECURITY UPDATE: Unbounded recursion
    - debian/patches/CVE-2020-28196.patch: adds recursion limit for ASN.1
      indefinite lenghts in src/lib/krb5/asn.1/asn1_encode.c.
    - CVE-2020-28196
==== libmaxminddb: 1.4.2-0ubuntu1 => 1.4.2-0ubuntu1.20.04.1 ====
====     libmaxminddb0:amd64
  * SECURITY UPDATE: heap overread in dump_entry_data_list
    - debian/patches/CVE-2020-28241.patch: replace most malloc uses with
      calloc in bin/mmdblookup.c, doc/libmaxminddb.md, src/maxminddb.c.
    - CVE-2020-28241
==== linux-meta: 5.4.0.53.56 => 5.4.0.54.57 ====
====     linux-headers-generic linux-headers-virtual linux-image-virtual linux-virtual
  * Bump ABI 5.4.0-54
  * Packaging resync (LP: #1786013)
    - [Packaging] resync debian/dkms-versions from main package
==== linux-signed: 5.4.0-53.59 => 5.4.0-54.60 ====
====     linux-image-5.4.0-54-generic
  * Master version: 5.4.0-54.60
==== openldap: 2.4.49+dfsg-2ubuntu1.4 => 2.4.49+dfsg-2ubuntu1.5 ====
====     libldap-2.4-2:amd64 libldap-common
  * SECURITY UPDATE: assertion failure in Certificate List syntax
    validation
    - debian/patches/CVE-2020-25709.patch: properly handle error in
      servers/slapd/schema_init.c.
    - CVE-2020-25709
  * SECURITY UPDATE: assertion failure in CSN normalization with invalid
    input
    - debian/patches/CVE-2020-25710.patch: properly handle error in
      servers/slapd/schema_init.c.
    - CVE-2020-25710
==== software-properties: 0.98.9.2 => 0.98.9.3 ====
====     python3-software-properties software-properties-common
  * cloudarchive: Enable support for the Wallaby Ubuntu Cloud Archive on
    20.04 (LP: #1902710).

--
[1] http://cloud-images.ubuntu.com/releases/focal/release-20201117/
[2] http://cloud-images.ubuntu.com/releases/focal/release-20201111/