Detections
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Ubuntu 17.04 : openvpn vulnerabilities (USN-3284-1)

high Nessus Plugin ID 100155

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Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

It was discovered that OpenVPN improperly triggered an assert when receiving an oversized control packet in some situations. A remote attacker could use this to cause a denial of service (server or client crash). (CVE-2017-7478)

It was discovered that OpenVPN improperly triggered an assert when packet ids rolled over. An authenticated remote attacker could use this to cause a denial of service (application crash). (CVE-2017-7479).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected openvpn package.

See Also

https://usn.ubuntu.com/3284-1/

Plugin Details

Severity: High

ID: 100155

File Name: ubuntu_USN-3284-1.nasl

Version: 3.8

Type: local

Agent: unix

Published: 5/12/2017

Updated: 1/12/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:17.04, p-cpe:/a:canonical:ubuntu_linux:openvpn

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/11/2017

Vulnerability Publication Date: 5/15/2017

Reference Information

CVE: CVE-2017-7478, CVE-2017-7479

USN: 3284-1