Off-by-one buffer overflow in Dovecot 1.0test53 through 1.0.rc14, and possibly other versions, when index files are used and mmap_disable is set to "yes," allows remote authenticated IMAP or POP3 users to cause a denial of service (crash) via unspecified vectors involving the cache file.
https://issues.rpath.com/browse/RPL-802
https://exchange.xforce.ibmcloud.com/vulnerabilities/30433
http://www.vupen.com/english/advisories/2006/4614
http://www.ubuntu.com/usn/usn-387-1
http://www.securityfocus.com/bid/21183/info
http://www.securityfocus.com/archive/1/452081/100/0/threaded
http://www.novell.com/linux/security/advisories/2006_73_mono.html
http://securitytracker.com/id?1017288
http://secunia.com/advisories/23213
http://secunia.com/advisories/23172
http://secunia.com/advisories/23150
http://secunia.com/advisories/23007
http://dovecot.org/pipermail/dovecot-news/2006-November/000024.html
http://dovecot.org/list/dovecot-news/2006-November/000023.html