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 These new images superseded the existing images [2].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:
 * linux-meta: 5.4.0.121.122 => 5.4.0.122.123 
 * linux-signed: 5.4.0-121.137 => 5.4.0-122.138 
 * nss: 2:3.49.1-1ubuntu1.7 => 2:3.49.1-1ubuntu1.8 


The following is a complete changelog for this image.
new: {'linux-headers-5.4.0-122-generic': '5.4.0-122.138', 'linux-headers-5.4.0-122': '5.4.0-122.138', 'linux-modules-5.4.0-122-generic': '5.4.0-122.138'}
removed: {'linux-headers-5.4.0-121-generic': '5.4.0-121.137', 'linux-modules-5.4.0-121-generic': '5.4.0-121.137', 'linux-headers-5.4.0-121': '5.4.0-121.137'}
changed: ['libnss3:amd64', 'linux-headers-generic', 'linux-headers-virtual', 'linux-image-5.4.0-122-generic', 'linux-image-virtual', 'linux-virtual']
new snaps: {}
removed snaps: {}
changed snaps: []
==== linux-meta: 5.4.0.121.122 => 5.4.0.122.123 ====
====     linux-headers-generic linux-headers-virtual linux-image-virtual linux-virtual
  * Bump ABI 5.4.0-122
==== linux-signed: 5.4.0-121.137 => 5.4.0-122.138 ====
====     linux-image-5.4.0-122-generic
  * Master version: 5.4.0-122.138
==== nss: 2:3.49.1-1ubuntu1.7 => 2:3.49.1-1ubuntu1.8 ====
====     libnss3:amd64
  * SECURITY UPDATE: Crash when handling empty pkcs7 sequence
    - debian/patches/CVE-2022-22747.patch: check for missing signedData
      field in nss/gtests/certdb_gtest/decode_certs_unittest.cc,
      nss/lib/pkcs7/certread.c.
    - CVE-2022-22747
  * SECURITY UPDATE: Free of uninitialized pointer in lg_init
    - debian/patches/CVE-2022-34480.patch: rearrange frees in
      nss/lib/softoken/legacydb/lginit.c.
    - CVE-2022-34480

--
[1] http://cloud-images.ubuntu.com/releases/focal/release-20220711/
[2] http://cloud-images.ubuntu.com/releases/focal/release-20220706/