[Bug 414359] [NEW] Dovecot-imapd, PAM auth., krb auth with non-krb user causes crash

[A. Karl Kornel]

Public bug reported:

The two servers showing this behavior were previously running an up-to-
date Ubuntu 6.06, which was then upgraded to an up-to-date Ubuntu 8.04
install.

The IMAP client I'm using (Opera) reports "Temporary authentication
failure".  The following entries appear in syslog, when I have
'auth_verbose' and 'auth_debug' set to "yes":

Aug 16 00:41:56 npbnagb dovecot: auth(default): new auth connection: pid=31751
Aug 16 00:41:56 npbnagb dovecot: auth(default): client in: AUTH^I1^IPLAIN^Iservi
ce=IMAP^Isecured^Ilip=10.1.16.85^Irip=192.168.235.121
Aug 16 00:41:56 npbnagb dovecot: auth(default): client out: CONT^I1^I
Aug 16 00:41:56 npbnagb dovecot: auth(default): client in: CONT<hidden>
Aug 16 00:41:56 npbnagb dovecot: auth(default): pam(nagios,192.168.235.121): lookup service=dovecot
Aug 16 00:41:57 npbnagb kernel: [12214.451803] dovecot-auth[31752] general protection rip:7ffa8c7b57f6 rsp:7fff956f9b98 error:0
Aug 16 00:41:57 npbnagb dovecot: auth(default): pam(nagios,192.168.235.121): Child process died
Aug 16 00:41:57 npbnagb dovecot: auth(default): PAM: Child 31752 died with signal 11
Aug 16 00:41:57 npbnagb dovecot: auth(default): client out: FAIL^I1^Iuser=nagios^Itemp
Aug 16 00:41:57 npbnagb dovecot: imap-login: Disconnected: user=<nagios>, method=PLAIN, rip=192.168.235.121, lip=10.1.16.85, TLS

The nagios account is a local account.

I also have another account on each server, for which I also have Opera
checking mail.  For this other account, I log in using my Kerberos
username and password, and things work fine.

** Affects: dovecot (Ubuntu)
     Importance: Undecided
         Status: New

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Dovecot-imapd, PAM auth., krb auth with non-krb user causes crash
https://bugs.launchpad.net/bugs/414359
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