[Bug 790538] Re: pam update causes cron to stop working with "Module is unknown" error

[Peter Odding]

@ubuntu devs: Since this has the potential to break lots servers in
various nasty ways it might (?) be wise to post a heads up to a mailing
list that's (hopefully) followed by lots of sysadmins like ubuntu-
security-announce. I'm guessing there's a whole policy about what should
and should not be submitted to ubuntu-security-announce but, well, it
was just a suggestion :-).

PS. If such a message has already been sent but I didn't see it because
I'm only following ubuntu-security-announce please ignore my suggestion.

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https://bugs.launchpad.net/bugs/790538

Title:
  pam update causes cron to stop working with "Module is unknown" error

Status in “pam” package in Ubuntu:
  Fix Released
Status in “pam” source package in Lucid:
  Fix Released
Status in “pam” source package in Maverick:
  Fix Released
Status in “pam” source package in Natty:
  Fix Released
Status in “pam” source package in Hardy:
  Fix Released

Bug description:
  Upgrading libpam-modules from 1.1.1-4ubuntu1 to 1.1.1-4ubuntu2.2, cron stopped working, just gives a log message "Module is unknown". This happened during unattended-upgrades this night, so there might be a lot of people who didn't realize that yet.
  Downgrading to 1.1.1-4ubuntu1 fixes this.
  Ubuntu 10.10 amd64, almost vanilla, fresh, minimum install + java (ppa) + postgresql9 (ppa).