FreeBSD : OpenVPN -- several vulnerabilities (9f65d382-56a4-11e7-83e3-080027ef73ec)

This script is Copyright (C) 2017 Tenable Network Security, Inc.

Synopsis :

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

Description :

Samuli Seppanen reports :

In May/June 2017 Guido Vranken threw a fuzzer at OpenVPN 2.4.2. In the
process he found several vulnerabilities and reported them to the
OpenVPN project. [...] The first releases to have these fixes are
OpenVPN 2.4.3 and 2.3.17.

This is a list of fixed important vulnerabilities :

- Remotely-triggerable ASSERT() on malformed IPv6 packet

- Pre-authentication remote crash/information disclosure for clients

- Potential double-free in --x509-alt-username

- Remote-triggerable memory leaks

- Post-authentication remote DoS when using the --x509-track option

- NULL pointer dereference in establish_http_proxy_passthru()

See also :

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 100976 ()

Bugtraq ID:

CVE ID: CVE-2017-7508

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