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FreeBSD: VID-A479A725-9ADB-11E6-A298-14DAE9D210B8: FreeBSD -- bhyve - privilege escalation vulnerability

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FreeBSD: VID-A479A725-9ADB-11E6-A298-14DAE9D210B8: FreeBSD -- bhyve - privilege escalation vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/25/2016
Created
07/25/2018
Added
11/14/2016
Modified
09/19/2017

Description

Problem Description:

An unchecked array reference in the VGA device emulation

code could potentially allow guests access to the heap of

the bhyve process. Since the bhyve process is running as

root, this may allow guests to obtain full control of the

hosts they are running on.

Impact:

For bhyve virtual machines with the "fbuf" framebuffer

device configured, if exploited, a malicious guest could

obtain full access to not just the host system, but to other

virtual machines running on the system.

Solution(s)

  • freebsd-upgrade-base-11_0-release-p2

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