A memory corruption flaw exists in WebKit, as it fails to sanitize unspecified user-supplied input. With a specially crafted web page, a context-dependent attacker can potentially execute arbitrary code.
Loss of Integrity
OSVDB is not currently aware of a solution for this vulnerability.
Currently, there are no known workarounds or upgrades to correct this issue. However, Apple has released a software update for iOS version 5.1 to address this vulnerability. Check the vendor advisory or solution in the references section.