Array index error in the HVMOP_set_mem_access handler in Xen 4.1 allows local HVM guest OS administrators to cause a denial of service (crash) or obtain sensitive information via unspecified vectors.
Exploitability
AV:LAC:LAu:SImpact
C:PI:NA:P3.2/AV:L/AC:L/Au:S/C:P/I:N/A:P