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FreeBSD : FreeBSD -- Bhyve out-of-bounds read in XHCI device (edf064fb-b30b-11e9-a87f-a4badb2f4699)

critical Nessus Plugin ID 127554

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Synopsis

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

Description

The pci_xhci_device_doorbell() function does not validate the 'epid' and 'streamid' provided by the guest, leading to an out-of-bounds read. Impact : A misbehaving bhyve guest could crash the system or access memory that it should not be able to.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?d2cd91f9

Plugin Details

Severity: Critical

ID: 127554

File Name: freebsd_pkg_edf064fbb30b11e9a87fa4badb2f4699.nasl

Version: 1.2

Type: local

Published: 8/12/2019

Updated: 1/6/2020

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS v3

Risk Factor: Critical

Base Score: 9.6

Temporal Score: 8.3

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/30/2019

Vulnerability Publication Date: 7/24/2019

Reference Information

CVE: CVE-2019-5604

FreeBSD: SA-19:16.bhyve