A security researcher has published a tool designed to allow devices running iOS 5.0.1 to run unsigned code.

"The tool, called Corona, takes advantage of a format string bug in a binary called racoon that's used when setting up IPSec connections," writes Threatpost's Dennis Fisher.

"The untether jailbreak works on devices running iOS 5.01, and is the work of a researcher who goes by the handle pod2g," Fisher writes. "He has posted a video demo of the untether tool in action, and the tool has been added to the redsn0w packages that will jailbreak and untether devices."

Go to "Corona iOS Jailbreak Tool Released" to read the details.

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