Race condition in iMessage in Apple iOS before 8 allows attackers to obtain sensitive information by leveraging the presence of an attachment after the deletion of its parent (1) iMessage or (2) MMS.
https://exchange.xforce.ibmcloud.com/vulnerabilities/96095
http://www.securitytracker.com/id/1030866
http://www.securityfocus.com/bid/69951
http://www.securityfocus.com/bid/69882
http://support.apple.com/kb/HT6441
http://archives.neohapsis.com/archives/bugtraq/2014-09/0106.html