FreeBSD : FreeBSD -- bhyve(8) virtual machine escape (e722e3c6-bbee-11e6-b1cf-14dae9d210b8)

High Nessus Plugin ID 95588


The remote FreeBSD host is missing one or more security-related updates.


The bounds checking of accesses to guest memory greater than 4GB by device emulations is subject to integer overflow. Impact : For a bhyve virtual machine with more than 3GB of guest memory configured, a malicious guest could craft device descriptors that could give it 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're running on.


Update the affected packages.

See Also

Plugin Details

Severity: High

ID: 95588

File Name: freebsd_pkg_e722e3c6bbee11e6b1cf14dae9d210b8.nasl

Version: $Revision: 3.3 $

Type: local

Published: 2016/12/07

Modified: 2017/02/21

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C


Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:FreeBSD, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info, Settings/ParanoidReport

Patch Publication Date: 2016/12/06

Vulnerability Publication Date: 2016/12/06

Reference Information

CVE: CVE-2016-1889

FreeBSD: SA-16:38.bhyve