Comment 34 for bug 2011458

I also tested upgrades from 1:9.0p1-1ubuntu7.3 in kinetic-proposed to 1:9.0p1-1ubuntu8.2 in lunar-proposed to confirm we won't be introducing bug 2020474:

root@kinetic:~# ssh localhost
Welcome to Ubuntu 22.10 (GNU/Linux 6.2.0-20-generic x86_64)

 * Documentation: https://help.ubuntu.com
 * Management: https://landscape.canonical.com
 * Support: https://ubuntu.com/advantage

The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

root@kinetic:~# apt-cache policy openssh-server
openssh-server:
  Installed: 1:9.0p1-1ubuntu7.3
  Candidate: 1:9.0p1-1ubuntu7.3
  Version table:
 *** 1:9.0p1-1ubuntu7.3 500
        500 http://archive.ubuntu.com/ubuntu kinetic-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     1:9.0p1-1ubuntu7.1 500
        500 http://archive.ubuntu.com/ubuntu kinetic-updates/main amd64 Packages
     1:9.0p1-1ubuntu7 500
        500 http://archive.ubuntu.com/ubuntu kinetic/main amd64 Packages
root@kinetic:~# sed -i 's/kinetic/lunar/g' /etc/apt/sources.list
root@kinetic:~# apt update
Get:1 http://archive.ubuntu.com/ubuntu lunar InRelease [267 kB]
Get:2 http://security.ubuntu.com/ubuntu lunar-security InRelease [109 kB]
Get:3 http://security.ubuntu.com/ubuntu lunar-security/main amd64 Packages [69.9 kB]
Get:4 http://archive.ubuntu.com/ubuntu lunar-updates InRelease [109 kB]
Get:5 http://security.ubuntu.com/ubuntu lunar-security/main Translation-en [20.5 kB]
Get:6 http://security.ubuntu.com/ubuntu lunar-security/universe amd64 Packages [33.4 kB]
Get:7 http://security.ubuntu.com/ubuntu lunar-security/universe Translation-en [11.0 kB]
Get:8 http://archive.ubuntu.com/ubuntu lunar-proposed InRelease [255 kB]
Get:9 http://archive.ubuntu.com/ubuntu lunar/main amd64 Packages [1,396 kB]
Get:10 http://archive.ubuntu.com/ubuntu lunar/main Translation-en [513 kB]
Get:11 http://archive.ubuntu.com/ubuntu lunar/restricted amd64 Packages [143 kB]
Get:12 http://archive.ubuntu.com/ubuntu lunar/restricted Translation-en [21.9 kB]
Get:13 http://archive.ubuntu.com/ubuntu lunar/universe amd64 Packages [15.0 MB]
Get:14 http://archive.ubuntu.com/ubuntu lunar/universe Translation-en [5,906 kB]
Get:15 http://archive.ubuntu.com/ubuntu lunar/multiverse amd64 Packages [236 kB]
Get:16 http://archive.ubuntu.com/ubuntu lunar/multiverse Translation-en [112 kB]
Get:17 http://archive.ubuntu.com/ubuntu lunar-updates/main amd64 Packages [124 kB]
Get:18 http://archive.ubuntu.com/ubuntu lunar-updates/main Translation-en [33.5 kB]
Get:19 http://archive.ubuntu.com/ubuntu lunar-updates/universe amd64 Packages [63.0 kB]
Get:20 http://archive.ubuntu.com/ubuntu lunar-updates/universe Translation-en [20.7 kB]
Get:21 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 Packages [64.7 kB]
Get:22 http://archive.ubuntu.com/ubuntu lunar-proposed/main Translation-en [18.3 kB]
Get:23 http://archive.ubuntu.com/ubuntu lunar-proposed/restricted amd64 Packages [82.7 kB]
Get:24 http://archive.ubuntu.com/ubuntu lunar-proposed/restricted Translation-en [15.6 kB]
Get:25 http://archive.ubuntu.com/ubuntu lunar-proposed/universe amd64 Packages [20.0 kB]
Get:26 http://archive.ubuntu.com/ubuntu lunar-proposed/universe Translation-en [9,732 B]
Get:27 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse amd64 Packages [8,192 B]
Get:28 http://archive.ubuntu.com/ubuntu lunar-proposed/multiverse Translation-en [2,572 B]
Fetched 24.7 MB in 4s (5,656 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
204 packages can be upgraded. Run 'apt list --upgradable' to see them.
root@kinetic:~# apt-cache policy openssh-server
openssh-server:
  Installed: 1:9.0p1-1ubuntu7.3
  Candidate: 1:9.0p1-1ubuntu8
  Version table:
     1:9.0p1-1ubuntu8.2 100
        100 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 Packages
     1:9.0p1-1ubuntu8 500
        500 http://archive.ubuntu.com/ubuntu lunar/main amd64 Packages
 *** 1:9.0p1-1ubuntu7.3 100
        100 /var/lib/dpkg/status
root@kinetic:~# lsof -i :22
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
systemd 1 root 42u IPv6 1991217 0t0 TCP *:ssh (LISTEN)
sshd 1011 root 3u IPv6 1991217 0t0 TCP *:ssh (LISTEN)
ssh 1015 root 3u IPv6 1988536 0t0 TCP localhost:34296->localhost:ssh (ESTABLISHED)
sshd 1016 root 4u IPv6 1992984 0t0 TCP localhost:ssh->localhost:34296 (ESTABLISHED)
root@kinetic:~# apt install openssh-server=1:9.0p1-1ubuntu8.2 openssh-client=1:9.0p1-1ubuntu8.2 openssh-sftp-server=1:9.0p1-1ubuntu8.2 -y
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  libssl3 openssl
Suggested packages:
  keychain libpam-ssh monkeysphere ssh-askpass molly-guard ufw
The following packages will be upgraded:
  libssl3 openssh-client openssh-server openssh-sftp-server openssl
5 upgraded, 0 newly installed, 0 to remove and 199 not upgraded.
Need to get 4,449 kB of archives.
After this operation, 88.1 kB disk space will be freed.
Get:1 http://archive.ubuntu.com/ubuntu lunar-updates/main amd64 libssl3 amd64 3.0.8-1ubuntu1.2 [1,902 kB]
Get:2 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 openssh-sftp-server amd64 1:9.0p1-1ubuntu8.2 [38.3 kB]
Get:3 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 openssh-server amd64 1:9.0p1-1ubuntu8.2 [431 kB]
Get:4 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 openssh-client amd64 1:9.0p1-1ubuntu8.2 [894 kB]
Get:5 http://archive.ubuntu.com/ubuntu lunar-updates/main amd64 openssl amd64 3.0.8-1ubuntu1.2 [1,183 kB]
Fetched 4,449 kB in 0s (10.6 MB/s)
Preconfiguring packages ...
(Reading database ... 19344 files and directories currently installed.)
Preparing to unpack .../libssl3_3.0.8-1ubuntu1.2_amd64.deb ...
Unpacking libssl3:amd64 (3.0.8-1ubuntu1.2) over (3.0.5-2ubuntu2.3) ...
Preparing to unpack .../openssh-sftp-server_1%3a9.0p1-1ubuntu8.2_amd64.deb ...
Unpacking openssh-sftp-server (1:9.0p1-1ubuntu8.2) over (1:9.0p1-1ubuntu7.3) ...
Preparing to unpack .../openssh-server_1%3a9.0p1-1ubuntu8.2_amd64.deb ...
Unpacking openssh-server (1:9.0p1-1ubuntu8.2) over (1:9.0p1-1ubuntu7.3) ...
Preparing to unpack .../openssh-client_1%3a9.0p1-1ubuntu8.2_amd64.deb ...
Unpacking openssh-client (1:9.0p1-1ubuntu8.2) over (1:9.0p1-1ubuntu7.3) ...
Preparing to unpack .../openssl_3.0.8-1ubuntu1.2_amd64.deb ...
Unpacking openssl (3.0.8-1ubuntu1.2) over (3.0.5-2ubuntu2.3) ...
Setting up libssl3:amd64 (3.0.8-1ubuntu1.2) ...
Setting up openssl (3.0.8-1ubuntu1.2) ...
Installing new version of config file /etc/ssl/openssl.cnf ...
Setting up openssh-client (1:9.0p1-1ubuntu8.2) ...
Setting up openssh-sftp-server (1:9.0p1-1ubuntu8.2) ...
Setting up openssh-server (1:9.0p1-1ubuntu8.2) ...
rescue-ssh.target is a disabled or a static unit not running, not starting it.
Processing triggers for libc-bin (2.36-0ubuntu4) ...
root@kinetic:~# apt-cache policy openssh-server
openssh-server:
  Installed: 1:9.0p1-1ubuntu8.2
  Candidate: 1:9.0p1-1ubuntu8.2
  Version table:
 *** 1:9.0p1-1ubuntu8.2 100
        100 http://archive.ubuntu.com/ubuntu lunar-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     1:9.0p1-1ubuntu8 500
        500 http://archive.ubuntu.com/ubuntu lunar/main amd64 Packages
root@kinetic:~# systemctl status ssh.socket ssh.service
● ssh.socket - OpenBSD Secure Shell server socket
     Loaded: loaded (/lib/systemd/system/ssh.socket; enabled; preset: enabled)
     Active: active (listening) since Fri 2023-06-02 14:24:43 UTC; 19s ago
      Until: Fri 2023-06-02 14:24:43 UTC; 19s ago
   Triggers: ● ssh.service
     Listen: [::]:22 (Stream)
     CGroup: /system.slice/ssh.socket

Jun 02 14:24:43 kinetic systemd[1]: Listening on OpenBSD Secure Shell server socket.

○ ssh.service - OpenBSD Secure Shell server
     Loaded: loaded (/lib/systemd/system/ssh.service; disabled; preset: enabled)
    Drop-In: /etc/systemd/system/ssh.service.d
             └─00-socket.conf
             /run/systemd/system/service.d
             └─zzz-lxc-service.conf
     Active: inactive (dead) since Fri 2023-06-02 14:24:42 UTC; 20s ago
   Duration: 2min 12.034s
TriggeredBy: ● ssh.socket
       Docs: man:sshd(8)
             man:sshd_config(5)
   Main PID: 1011 (code=exited, status=0/SUCCESS)
        CPU: 104ms

Jun 02 14:22:30 kinetic sshd[1011]: Server listening on :: port 22.
Jun 02 14:22:30 kinetic systemd[1]: Started OpenBSD Secure Shell server.
Jun 02 14:22:34 kinetic sshd[1012]: Connection closed by authenticating user root ::1 port 37598 [preauth]
Jun 02 14:22:45 kinetic sshd[1016]: Accepted publickey for root from ::1 port 34296 ssh2: RSA SHA256:BpuS10kEBPBrKFF6c>
Jun 02 14:22:45 kinetic sshd[1016]: pam_unix(sshd:session): session opened for user root(uid=0) by (uid=0)
Jun 02 14:22:46 kinetic sshd[1016]: pam_env(sshd:session): deprecated reading of user environment enabled
Jun 02 14:24:42 kinetic sshd[1011]: Received signal 15; terminating.
Jun 02 14:24:42 kinetic systemd[1]: Stopping OpenBSD Secure Shell server...
Jun 02 14:24:42 kinetic systemd[1]: ssh.service: Deactivated successfully.
Jun 02 14:24:42 kinetic systemd[1]: Stopped OpenBSD Secure Shell server.