FreeBSD : openvpn -- multiple TCP clients connecting with the same certificate at the same time can crash the server (5ad3e437-e527-4514-b9ed-280b2ca1a8c9)

low Nessus Plugin ID 21433

Synopsis

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

Description

James Yonan reports :

If two or more client machines try to connect to the server at the same time via TCP, using the same client certificate, and when
--duplicate-cn is not enabled on the server, a race condition can crash the server with 'Assertion failed at mtcp.c:411'

Solution

Update the affected package.

Plugin Details

Severity: Low

ID: 21433

File Name: freebsd_pkg_5ad3e437e5274514b9ed280b2ca1a8c9.nasl

Version: 1.14

Type: local

Family: FreeBSD Local Security Checks

Published: 5/13/2006

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.6

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

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

Patch Publication Date: 8/19/2005

Vulnerability Publication Date: 8/3/2005

Reference Information

CVE: CVE-2005-2534

Detections

Analytics