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FreeBSD: xen-kernel -- VMX: intercept issue with INVLPG on non-canonical address (CVE-2016-1571)

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FreeBSD: xen-kernel -- VMX: intercept issue with INVLPG on non-canonical address (CVE-2016-1571)

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
01/22/2016
Created
07/25/2018
Added
02/29/2016
Modified
10/30/2017

Description

The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check.

Solution(s)

  • freebsd-upgrade-package-xen-kernel

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