The (1) do_send and (2) do_recv functions in io.c in libvchan in Xen
4.2.x, 4.3.x, and 4.4-RC series allows local guests to cause a denial
of service or possibly gain privileges via crafted xenstore ring
indexes, which triggers a "read or write past the end of the ring."
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20140207 Re: Xen Security Advisory 84 - integer overflow in several XSM/Flask hypercalls
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