Improper TLB Flush in Xen 4.2.x and 4.3.x with Intel VT-d for PCI Passthrough Vulnerability

CVE-2013-6375 · HIGH Severity

AV:A/AC:M/AU:N/C:C/I:C/A:C

Xen 4.2.x and 4.3.x, when using Intel VT-d for PCI passthrough, does not properly flush the TLB after clearing a present translation table entry, which allows local guest administrators to cause a denial of service or gain privileges via unspecified vectors related to an "inverted boolean parameter."

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