Denial of Service Vulnerability in Xen due to Incorrect Meltdown Mitigation

CVE-2018-19965 · MEDIUM Severity

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

An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.

Learn more about our User Device Pen Test.