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FreeBSD : FreeBSD -- Incorrect user-controlled pointer use in epair (0cc7e547-6a0a-11ea-92ab-00163e433440)

critical Nessus Plugin ID 134719

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Synopsis

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

Description

Incorrect use of a potentially user-controlled pointer in the kernel allowed vnet jailed users to panic the system and potentially execute aribitrary code in the kernel. Impact : Users with root level access (or the PRIV_NET_IFCREATE privilege) can panic the system, or potentially escape the jail or execute arbitrary code with kernel priviliges.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?7ad93da6

Plugin Details

Severity: Critical

ID: 134719

File Name: freebsd_pkg_0cc7e5476a0a11ea92ab00163e433440.nasl

Version: 1.6

Type: local

Published: 3/20/2020

Updated: 8/21/2020

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2020-7452

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/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: 3/19/2020

Vulnerability Publication Date: 3/19/2020

Reference Information

CVE: CVE-2020-7452

FreeBSD: SA-20:07.epair

IAVA: 2020-A-0188-S