FreeBSD : openvpn -- two security fixes (142c538e-b18f-40a1-afac-c479effadd5c)

high Nessus Plugin ID 200822

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Synopsis

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

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 142c538e-b18f-40a1-afac-c479effadd5c advisory.

Gert Doering reports that OpenVPN 2.6.11 fixes two security bugs (three on Windows):
CVE-2024-5594: control channel: refuse control channel messages with nonprintable characters in them.
Security scope: a malicious openvpn peer can send garbage to openvpn log, or cause high CPU load. (Reynir Bjrnsson) CVE-2024-28882: only call schedule_exit() once (on a given peer). Security scope: an authenticated client can make the server keep the session even when the server has been told to disconnect this client.
(Reynir Bjrnsson)

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 200822

File Name: freebsd_pkg_142c538eb18f40a1afacc479effadd5c.nasl

Version: 1.2

Type: local

Family: FreeBSD Local Security Checks

Published: 6/21/2024

Updated: 10/4/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2024-5594

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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:openvpn, cpe:/o:freebsd:freebsd

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/20/2024

Vulnerability Publication Date: 6/20/2024

Reference Information

CVE: CVE-2024-28882, CVE-2024-5594

IAVA: 2024-A-0608

Detections

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