This bug was fixed in the package fail2ban - 0.8.3-6ubuntu1

---------------
fail2ban (0.8.3-6ubuntu1) karmic; urgency=low

  * Merge from debian unstable (LP: #402039), remaining changes:
    - Python 2.6 transition.

fail2ban (0.8.3-6) unstable; urgency=low

  * Time to shake the ground with upload to unstable.
  * Merged upstream's development as of SVN revision 732:
     - Fixed maxretry/findtime rate. Many thanks to Christos Psonis.
       Tracker #2019714.
     - Made the named-refused regex a bit less restrictive in order to match
       logs with "view". Thanks to Stephen Gildea.
     - Use timetuple instead of utctimetuple for ISO 8601. Maybe not a 100%
       correct fix but seems to work. Tracker #2500276.
     - Changed <HOST> template to be more restrictive (closes: #514163).
     - Added cyrus-imap and sieve filters. Thanks to Jan Wagner.  (closes:
       #513953).
     - Pull a commit from Yaroslav git repo. BF: addressing added bang to ssh
       log (closes: #512193).
     - Added missing semi-colon in the bind9 example. Thanks to Yaroslav
       Halchenko.
     - Added NetBSD ipfilter (ipf command) action. Thanks to Ed Ravin. Tracker
       #2484115.
     - Improved SASL filter. Thanks to Loic Pefferkorn. Tracker #2310410.
       (closes: #507990)
     - Added CPanel date format. Thanks to David Collins. Tracker #1967610.
     - Added nagios script. Thanks to Sebastian Mueller.
     - Removed print.
     - Removed begin-line anchor for "standard" timestamp (closes: #500824)
     - Remove socket file on startup is fail2ban crashed. Thanks to Detlef
       Reichelt.
  * Added a comment into Debian-shipped jail.conf about sasl logpath -- it
    might preferable to monitor warn.log in case of postfix (To complete react
    to #507990) (git branch up/fixes). Also added sasl example log file (git
    branch up/log_examples).
  * Removing minor bashism in ipmasq example file (closes: #530078).
    Thanks Raphael Geissert (git branch up/ipmasq)
  * Allow for trailing spaces in proftpd logs (closes: #507986)
    (git branch up/fixes).
  * Removed duplicate entry for DataCha0s/2\.0 in badbots (closes: #519557)
    (git branch up/fixes).
  * Adjusted Git-vcs field to point to git:// .
  * Thanks lintian fixes:
    - Boosted policy to 3.8.2 (no changes are due).
    - Boosted debhelper compatibility to 5.
    - Misspell in README.Debian
    - Removing stale /var/run/fail2ban from dirs -- should be created by
      init script

fail2ban (0.8.3-5) experimental; urgency=low

  * BF: anchoring regex for IP with " *$" at the end + adjust regexp for
    <HOST> (closes: #514163)
  * NF: adding unittests for previous BF

fail2ban (0.8.3-4) experimental; urgency=low

  * BF: added missing semicolon in a logging template for bind within
    jail.conf (thanks to anonymous on www.debian-administration.org)

fail2ban (0.8.3-3) experimental; urgency=low

  * BF: addressed added bang to ssh log (closes: #512193).
    Thanks Silvestre Zabala.
  * Adjusted description of bantime/findtime in README.Debian (closes:
    #507771)
  * Synced current debian revision to FAIL2BAN-0_8@717 of upstream,
    since it includes fixes to some forwarded bugs. Total list of
    functional changes
    - Added actions to report abuse to ISP, DShield and myNetWatchman.
      Thanks to Russell Odom.
    - Added apache-nohome.conf. Thanks to Yaroslav Halchenko.
    - Added new time format. No idea from where it comes...
    - Added new regex. Thanks to Tobias Offermann.
    - Try to match the regex even if the line does not contain a valid
      date/time. Described in Debian #491253. Thanks to Yaroslav
      Halchenko.
    - Removed "timeregex" and "timepattern" stuff that is not needed
      anymore.
    - Added date template for Day-Month-Year Hour:Minute:Second
      (closes: #491253)
    - Added date pattern for Hour:Minute:Second. Thanks to Andreas
      Itzchak Rehberg.
    - Use current day and month instead of Jan 1st if both are not
      available in the log. Thanks to Andreas Itzchak Rehberg.
    - Improved pattern. Thanks to Yaroslav Halchenko.
    - Merged patches from Debian package. Thanks to Yaroslav Halchenko.

 -- Andres Rodriguez <email address hidden>   Mon, 20 Jul 2009 23:08:35 -0500