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

iDefense Security Advisory 07.20.11 – Remote exploitation of a heap based buffer overflow vulnerability in WebKit, as included with Apple Inc.’s Safari Web browser, could allow an attacker to execute arbitrary code with the privileges of the current user. Safari versions prior to 5.1 and 5.0.6 are vulnerable.

iDefense Security Advisory 07.20.11 – Remote exploitation of a use-after-free vulnerability in WebKit, as included with Apple Inc.’s Safari Web browser, could allow an attacker to execute arbitrary code with the privileges of the current user.

Apple Security Advisory 2011-07-20-1 – A large amount of security issues have been addressed in Safari versions 5.1 and 5.0.6. These range from cross site scripting, possible arbitrary code execution, accidental trust in a disable root certificate, buffer and integer overflows, and more.