Source: dovecot
Version: 1:2.2.13-1
Severity: normal
Tags: upstream fixed-upstream

Hi,

With the fix for CVE-2014-3430 applied, on failed authentication and
then logout from dovecot, dovecot, BYE and LOGOUT replies are not sent
anymore.

# openssl s_client -connect 127.0.0.1:993
[...]
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE 
AUTH=PLAIN] Dovecot ready.
a login foo bar
a NO [AUTHENTICATIONFAILED] Authentication failed.
b logout
closed
#

Upstream has addressed this after the 2.2.13 release with [1]. But
note this introduced a regression[2] and needs at least two further
commits to be resolved[3,4,5].

 [1] http://hg.dovecot.org/dovecot-2.2/rev/09d3c9c6f0ad
 [2] http://dovecot.org/list/dovecot/2014-June/096528.html
 [3] http://dovecot.org/list/dovecot/2014-June/096543.html
 [4] http://hg.dovecot.org/dovecot-2.2/rev/7129fe8bc260
 [5] http://hg.dovecot.org/dovecot-2.2/rev/5259f6320e52

Regards,
Salvatore


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