A vulnerability has been reported in Dovecot, which can be exploited by malicious users to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.
The vulnerability is caused due to an off-by-one error when the dovecot.index.cache file is read into memory. If the "mmap_disable" option is set to "yes", this can be exploited to cause a one-byte buffer overflow.
The vulnerability is reported in version 1.0test53 through 1.0.rc14.
Solution: Update to version 1.0rc15.
Provided and/or discovered by: Reported by the vendor.
Original Advisory: http://www.dovecot.org/list/dovecot-news/2006-November/000024.html
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