CVE-2007-6598
Dovecot before 1.0.10, with certain configuration options including use of %variables, does not properly maintain the LDAP+auth cache, which might allow remote authenticated users to login as a different user who has the same password.
Date published : 2008-01-03
http://www.securityfocus.com/bid/27093
http://www.securityfocus.com/archive/1/485787/100/0/threaded