A weakness has been reported in Dovecot, which can be exploited by malicious users to gain knowledge of potentially sensitive information.
The weakness is caused due to an input validation error in the LIST command of the IMAP service. This can be exploited by an authenticated user to list the contents of the parent directory hence disclosing the names of other users' mailboxes.
Solution: The weakness has been fixed in version 1.0 beta8.
Provided and/or discovered by: Reported by the vendor.
Original Advisory: http://www.dovecot.org/list/dovecot-news/2006-May/000006.html
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