CVE-2010-3829
WebKit in Apple iOS before 4.2 allows remote attackers to bypass the remote image loading setting in Mail via an HTML LINK element with a DNS prefetching property, as demonstrated by an HTML e-mail message that uses a LINK element for X-Confirm-Reading-To functionality, a related issue to CVE-2010-3813.
Date published : 2010-11-26
http://lists.apple.com/archives/security-announce/2010//Nov/msg00003.html
http://lists.apple.com/archives/security-announce/2011//Jul/msg00002.html