WebKit contains a use-after-free error in the 'Document::finishedParsing' function [WebCore/dom/Document.cpp] when handling frames. With a specially crafted web page, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code.
Loss of Integrity
It has been reported that this issue has been fixed. Upgrade to version 1.6.0, or higher, to address this vulnerability.
Upgrade to Apple iOS 5, or higher, to address this vulnerability.
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