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Xen Unbounded Recursion In Pagetable De-Typing

Xen Unbounded Recursion In Pagetable De-Typing
Posted Oct 19, 2017
Authored by Jann Horn, Google Security Research

Xen allows pagetables of the same level to map each other as readonly in PV domains. This is useful if a guest wants to use the self-referential pagetable trick for easy access to pagetables by mapped virtual address.

tags | exploit
MD5 | 7b0613bdfa02a772faa0631e1daf6f95

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