Arbitrary Code Execution

xen is vulnerable to arbitrary code execution. The hypervisor's para-virtualized framebuffer PVFB backend failed to validate the format of messages serving to update the contents of the framebuffer. This could allow a malicious user to cause a denial of service, or compromise the privileged domai...

Paper: Adventures with a certain Xen vulnerability

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Invisible Things Lab is proud to present: "Adventures with a certain Xen vulnerability in the PVFB backend" by Rafal Wojtczuk Starring Xen 3.2.0, DomU an ordinary virtual machine, paravirtualized, Dom0 privileged administrative domain running on FC8...

Design/Logic Flaw

The backend for XenSource Xen Para Virtualized Frame Buffer PVFB in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service crash by mapping an arbitrary amount of guest memory...