Amazon Linux 2 : gawk (ALAS-2023-2357)

high Nessus Plugin ID 186576


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


The version of gawk installed on the remote host is prior to 4.0.2-4. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2357 advisory.

- A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information. (CVE-2023-4156)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Run 'yum update gawk' to update your system.

See Also

Plugin Details

Severity: High

ID: 186576

File Name: al2_ALAS-2023-2357.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/4/2023

Updated: 12/21/2023

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

Risk Information


Risk Factor: Medium

Score: 6.0


Risk Factor: Medium

Base Score: 6.6

Temporal Score: 5.2

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

CVSS Score Source: CVE-2023-4156


Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:gawk, p-cpe:/a:amazon:linux:gawk-debuginfo, cpe:/o:amazon:linux:2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/29/2023

Vulnerability Publication Date: 8/17/2023

Reference Information

CVE: CVE-2023-4156

IAVA: 2023-A-0444