FreeBSD : FreeBSD -- bhyve - privilege escalation vulnerability (a479a725-9adb-11e6-a298-14dae9d210b8)

high Nessus Plugin ID 94263

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Synopsis

The remote FreeBSD host is missing a security-related update.

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

Update the affected package.

See Also

http://www.nessus.org/u?94ec2ea3

Plugin Details

Severity: High

ID: 94263

File Name: freebsd_pkg_a479a7259adb11e6a29814dae9d210b8.nasl

Version: 1.4

Type: local

Published: 10/26/2016

Updated: 1/4/2021

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Vulnerability Information

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

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

Patch Publication Date: 10/25/2016

Vulnerability Publication Date: 10/25/2016

Reference Information

FreeBSD: SA-16:32.bhyve