Bug#397771: sasl2-bin: authentication failure upon upgrade

[System Administrator]

Package: sasl2-bin
Version: 2.1.22-1
Severity: critical
Justification: breaks the whole system


Upon upgrading my sasl2-bin, none of my user able to send email via
postfix-tls. I tried below action and these are the outcome

mail:~# ps waux | grep saslauthd
root     24048  0.0  0.1   7140  2440 ?        Ss   18:18   0:00
/usr/sbin/saslauthd -a pam -c -O -n 5
root     24053  0.0  0.1   7264  2636 ?        S    18:18   0:00
/usr/sbin/saslauthd -a pam -c -O -n 5
root     24054  0.0  0.1   7140  2448 ?        S    18:18   0:00
/usr/sbin/saslauthd -a pam -c -O -n 5
root     24055  0.0  0.1   7140  2440 ?        S    18:18   0:00
/usr/sbin/saslauthd -a pam -c -O -n 5
root     24056  0.0  0.1   7140  2440 ?        S    18:18   0:00
/usr/sbin/saslauthd -a pam -c -O -n 5
root     25347  0.0  0.0   1872   624 pts/1    R+   19:32   0:00 grep
saslauthd

mail:/var/run/saslauthd# perl -MMIME::Base64 -e 'print
encode_base64("foobar\0foobar\0foobar");'
ZGhpcwBkaGlzAGF6c2I=

mail:/var/run/saslauthd# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.localdomain.
Escape character is '^]'.
220 mail.foobar.com ESMTP Postfix (AZRB)
EHLO mail.foobar.com
250-mail.foobar.com
250-PIPELINING
250-SIZE
250-ETRN
250-STARTTLS
250-AUTH NTLM LOGIN PLAIN DIGEST-MD5 CRAM-MD5
250-AUTH=NTLM LOGIN PLAIN DIGEST-MD5 CRAM-MD5
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
AUTH PLAIN ZGhpcwBkaGlzAGF6c2I=
535 5.7.0 Error: authentication failed: authentication failure
quit
221 2.0.0 Bye
Connection closed by foreign host.

mail:/var/run/saslauthd# testsaslauthd -u foobar -p foobar
0: OK "Success."
mail:/var/run/saslauthd#



-- System Information:
Debian Release: 4.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: i386 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.8-11-em64t-p4
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)

Versions of packages sasl2-bin depends on:
ii  libc6    2.3.6.ds1-8                     GNU C Library: Shared libraries
ii  libcomer 1.39+1.40-WIP-2006.10.02+dfsg-2 common error description library
ii  libdb4.2 4.2.52+dfsg-1                   Berkeley v4.2 Database Libraries [
ii  libkrb53 1.4.4-4                         MIT Kerberos runtime libraries
ii  libldap2 2.1.30-13.2                     OpenLDAP libraries
ii  libpam0g 0.79-4                          Pluggable Authentication Modules l
ii  libsasl2 2.1.22-1                        Authentication abstraction library
ii  libssl0. 0.9.8c-3                        SSL shared libraries
ii  lsb-base 3.1-19                          Linux Standard Base 3.1 init scrip

sasl2-bin recommends no packages.

-- no debconf information