Detections
Analytics

Amazon Linux AMI : openvpn (ALAS-2017-852)

high Nessus Plugin ID 101064

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet.
(CVE-2017-7508)

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character. (CVE-2017-7522)

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension().
(CVE-2017-7521)

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker. (CVE-2017-7520)

Solution

Run 'yum update openvpn' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2017-852.html

Plugin Details

Severity: High

ID: 101064

File Name: ala_ALAS-2017-852.nasl

Version: 3.9

Type: local

Agent: unix

Published: 6/28/2017

Updated: 4/18/2018

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openvpn, p-cpe:/a:amazon:linux:openvpn-debuginfo, p-cpe:/a:amazon:linux:openvpn-devel, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Patch Publication Date: 6/27/2017

Reference Information

CVE: CVE-2017-7508, CVE-2017-7520, CVE-2017-7521, CVE-2017-7522

ALAS: 2017-852