Asterisk Open Source 1.4.5 through 1.4.11, when configured to use an IMAP voicemail storage backend, allows remote attackers to cause a denial of service via an e-mail with an “invalid/corrupted” MIME body, which triggers a crash when the recipient listens to voicemail.
downloads.digium.com/pub/asa/AST-2007-021.html
secunia.com/advisories/26601
secunia.com/advisories/26602
securityreason.com/securityalert/3065
www.securityfocus.com/archive/1/477729/100/0/threaded
www.securityfocus.com/bid/25438
www.securitytracker.com/id?1018606
www.vupen.com/english/advisories/2007/2978
exchange.xforce.ibmcloud.com/vulnerabilities/36261