[Bug 2055114] Re: fail2ban is broken in 24.04 Noble

[Åka Sikrom]

Thanks fossfreedom,

I have tried to go through the documentation you linked to, but its
links to specific processes are either dead or redirect to a new WIP
readthedocs page where the info I need has not been addded yet. Since
this would be my first-ever Ubuntu patch, I need a bit more specific
information in order to improve my process and patch content.

If there is anything specific missing in my patch and/or its description
above, please feel free to point it out, and I will do what I can.

Again, I have deliberately refrained from including a changelog entry //
version bump, and the patch is not in quilt format since it is unclear
to me whether it should be. If these are the only missing bits, I would
be happy to add them and upload a revised patch.

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Title:
  fail2ban is broken in 24.04 Noble

Status in fail2ban package in Ubuntu:
  Confirmed

Bug description:
  Was working in 22.04, but after upgrading to 24.04 I get this:

  × fail2ban.service - Fail2Ban Service
       Loaded: loaded (/etc/systemd/system/fail2ban.service; enabled; preset: enabled)
       Active: failed (Result: exit-code) since Sun 2024-02-25 02:27:29 PST; 1 day 18h ago
     Duration: 2.330s
         Docs: man:fail2ban(1)
      Process: 1130 ExecStartPre=/bin/mkdir -p /run/fail2ban (code=exited, status=0/SUCCESS)
      Process: 1133 ExecStart=/usr/local/bin/fail2ban-server -xf start (code=exited, status=255/EXCEPTION)
     Main PID: 1133 (code=exited, status=255/EXCEPTION)
          CPU: 660ms

  Feb 25 02:27:26 mx1 systemd[1]: Starting fail2ban.service - Fail2Ban Service...
  Feb 25 02:27:26 mx1 systemd[1]: Started fail2ban.service - Fail2Ban Service.
  Feb 25 02:27:28 mx1 fail2ban-server[1133]: 2024-02-25 02:27:28,952 fail2ban                [1133]: ERROR   No module named 'asynchat'
  Feb 25 02:27:29 mx1 systemd[1]: fail2ban.service: Main process exited, code=exited, status=255/EXCEPTION
  Feb 25 02:27:29 mx1 systemd[1]: fail2ban.service: Failed with result 'exit-code'.

  grep fail2ban syslog
  2024-02-25T02:25:17.813593-08:00 mx1 systemd[1]: Stopping fail2ban.service - Fail2Ban Service...
  2024-02-25T02:27:26.625640-08:00 mx1 systemd[1]: Starting fail2ban.service - Fail2Ban Service...
  2024-02-25T02:27:26.678572-08:00 mx1 systemd[1]: Started fail2ban.service - Fail2Ban Service.
  2024-02-25T02:27:28.954548-08:00 mx1 fail2ban-server[1133]: 2024-02-25 02:27:28,952 fail2ban                [1133]: ERROR   No module named 'asynchat'
  2024-02-25T02:27:29.004733-08:00 mx1 systemd[1]: fail2ban.service: Main process exited, code=exited, status=255/EXCEPTION
  2024-02-25T02:27:29.004834-08:00 mx1 systemd[1]: fail2ban.service: Failed with result 'exit-code'.

  Seems 24.04 is missing a python 3.12 module 'asynchat'.

  This leaves my systems vulnerable to brute-force password guessing
  attacks.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: fail2ban 1.0.2-3
  Uname: Linux 6.7.6 x86_64
  ApportVersion: 2.28.0-0ubuntu1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: MATE
  Date: Mon Feb 26 20:33:12 2024
  InstallationDate: Installed on 2017-08-14 (2388 days ago)
  InstallationMedia: Ubuntu-MATE 17.04 "Zesty Zapus" - Release amd64 (20170412)
  PackageArchitecture: all
  SourcePackage: fail2ban
  UpgradeStatus: Upgraded to noble on 2024-01-23 (35 days ago)

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