[Bug 1571883] Re: libpam-smbpass:amd64 (2:4.3.8+dfsg-0ubuntu0.14.04.2) causes PAM failure for dovecot

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: samba (Ubuntu)
       Status: New => Confirmed

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Title:
  libpam-smbpass:amd64 (2:4.3.8+dfsg-0ubuntu0.14.04.2) causes PAM
  failure for dovecot

Status in samba package in Ubuntu:
  Confirmed

Bug description:
  Dovecot (an IMAP mail server) stopped accepting connections last
  night.  This happened after libpam-smbpass was automatically upgraded.
  Removing the libpam-smbpass package dovecot works again.

  Other users are reporting the same behavior here:
  http://ubuntuforums.org/showthread.php?t=2320889

  From /var/log/syslog:

  Apr 18 15:01:04 SERVER dovecot: imap-login: Debug: SSL: where=0x2002, ret=1: SSL negotiation finished successfully [x.x.x.x]
  Apr 18 15:01:05 SERVER t of memory [2971]
  Apr 18 15:01:05 SERVER dovecot: auth-worker(2971): Error: pam(USER,x.x.x.x): pam_start() failed: Critical error - immediate abort
  Apr 18 15:01:11 SERVER dovecot: auth-worker(2971): Error: pam(USER,x.x.x.x): pam_start() failed: Critical error - immediate abort
  Apr 18 15:01:13 SERVER dovecot: imap-login: Debug: SSL alert: close notify [x.x.x.x]
  Apr 18 15:01:13 SERVER dovecot: imap-login: Debug: SSL alert: close notify [x.x.x.x]
  Apr 18 15:01:13 SERVER dovecot: imap-login: Disconnected (auth failed, 2 attempts in 9 secs): user=<USER>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, TLS, session=<OJk/f8kwbQDY5HAW>

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: libpam-smbpass 2:4.3.8+dfsg-0ubuntu0.14.04.2
  ProcVersionSignature: Ubuntu 3.16.0-70.90~14.04.1-generic 3.16.7-ckt25
  Uname: Linux 3.16.0-70-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  Date: Mon Apr 18 15:36:08 2016
  InstallationDate: Installed on 2015-01-08 (466 days ago)
  InstallationMedia: Ubuntu-Server 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.3)
  OtherFailedConnect: Yes
  ProcEnviron:
   TERM=xterm
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=en_US.UTF-8
   XDG_RUNTIME_DIR=<set>
  SambaServerRegression: Yes
  SmbConfIncluded: No
  SourcePackage: samba
  UpgradeStatus: No upgrade log present (probably fresh install)

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