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

critical Nessus Plugin ID 121053
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The remote Amazon Linux 2 host is missing a security update.


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)


Run 'yum update NetworkManager' to update your system.

See Also

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


Risk Factor: Medium

Score: 5.9


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

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


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: E:U/RL:O/RC:C

Vulnerability Information

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

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