[Bug 790538] Re: cron gives "Module is unknown" in syslog, stops working

[Oliver]

Same here. Also get this in auth.log:

May 31 10:26:01 server CRON[18212]: PAM unable to dlopen(/lib/security/pam_env.so): /lib/libpam.so.0: version `LIBPAM_MODUTIL_1.1.3' not found (required by /lib/security/pam_env.so)
May 31 10:26:01 server CRON[18212]: PAM adding faulty module: /lib/security/pam_env.so
May 31 10:26:01 server CRON[18212]: pam_unix(cron:session): session opened for user root by (uid=0)

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

Title:
  cron gives "Module is unknown" in syslog, stops working

Status in “pam” package in Ubuntu:
  New

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).