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Ubuntu 16.04 LTS / 18.04 LTS : Open vSwitch vulnerabilities (USN-3873-1)

high Nessus Plugin ID 121506

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3873-1 advisory.

 It was discovered that Open vSwitch incorrectly decoded certain packets. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2018-17204)

 It was discovered that Open vSwitch incorrectly handled processing certain flows. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-17205)

 It was discovered that Open vSwitch incorrectly handled BUNDLE action decoding. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2018-17206)

Tenable has extracted the preceding description block directly from the Ubuntu 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.

See Also

https://ubuntu.com/security/notices/USN-3873-1

Plugin Details

Severity: High

ID: 121506

File Name: ubuntu_USN-3873-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 1/31/2019

Updated: 8/27/2024

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 Score Source: CVE-2018-17205

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: p-cpe:/a:canonical:ubuntu_linux:openvswitch-pki, p-cpe:/a:canonical:ubuntu_linux:ovn-host, p-cpe:/a:canonical:ubuntu_linux:openvswitch-vtep, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:openvswitch-common, p-cpe:/a:canonical:ubuntu_linux:ovn-common, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:openvswitch-switch, p-cpe:/a:canonical:ubuntu_linux:ovn-controller-vtep, p-cpe:/a:canonical:ubuntu_linux:ovn-central, p-cpe:/a:canonical:ubuntu_linux:python3-openvswitch, p-cpe:/a:canonical:ubuntu_linux:openvswitch-switch-dpdk, p-cpe:/a:canonical:ubuntu_linux:openvswitch-ipsec, p-cpe:/a:canonical:ubuntu_linux:python-openvswitch, p-cpe:/a:canonical:ubuntu_linux:openvswitch-testcontroller, p-cpe:/a:canonical:ubuntu_linux:openvswitch-test

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: 1/30/2019

Vulnerability Publication Date: 9/19/2018

Reference Information

CVE: CVE-2018-17204, CVE-2018-17205, CVE-2018-17206

USN: 3873-1