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FreeBSD: VID-49211361-BA4D-11E6-AE1B-002590263BF5 (CVE-2016-7093): xen-kernel -- x86: Mishandling of instruction pointer truncation during emulation

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FreeBSD: VID-49211361-BA4D-11E6-AE1B-002590263BF5 (CVE-2016-7093): xen-kernel -- x86: Mishandling of instruction pointer truncation during emulation

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
09/08/2016
Created
07/25/2018
Added
12/04/2016
Modified
05/07/2019

Description

Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.

Solution(s)

  • freebsd-upgrade-package-xen-kernel

References

  • CVE-2016-7093

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