Amazon Linux 2 : NetworkManager (ALAS-2019-1144)

critical Nessus Plugin ID 121053
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

It was discovered that systemd-network does not correctly keep track of a buffer size when constructing DHCPv6 packets. This flaw may lead to an integer underflow that can be used to produce an heap-based buffer overflow. A malicious host on the same network segment as the victim's one may advertise itself as a DHCPv6 server and exploit this flaw to cause a Denial of Service or potentially gain code execution on the victim's machine.(CVE-2018-15688)

Solution

Run 'yum update NetworkManager' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2019-1144.html

Plugin Details

Severity: Critical

ID: 121053

File Name: al2_ALAS-2019-1144.nasl

Version: 1.2

Type: local

Agent: unix

Published: 1/10/2019

Updated: 2/26/2020

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:2.3:o:amazon:linux:2:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-adsl:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-bluetooth:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-config-server:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-dispatcher-routing-rules:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-glib:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-glib-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-libnm:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-libnm-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-ppp:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-team:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-tui:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-wifi:*:*:*:*:*:*:*, p-cpe:2.3:a:amazon:linux:networkmanager-wwan:*:*:*:*:*:*:*

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/9/2019

Vulnerability Publication Date: 10/26/2018

Reference Information

CVE: CVE-2018-15688

ALAS: 2019-1144