Zero Day Initiative Advisory 11-240 – This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari’s Webkit. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the library’s support of SVG markers

Apple Security Advisory 2011-07-25-2 – The iOS 4.2.10 software update addresses a certificate chain validation issue. The issue existed in the handling of X.509 certificates where an attacker with a privileged network position may capture or modify data in sessions protected by SSL/TLS. Other attacks involving X.509 certificate validation may also be possible