Amazon Linux 2023 : nasm, nasm-rdoff (ALAS2023-2023-354)

medium Nessus Plugin ID 181713


The remote Amazon Linux 2023 host is missing a security update.


It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-354 advisory.

- A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file. (CVE-2020-21528)

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


Run 'dnf update nasm --releasever 2023.2.20230920' to update your system.

See Also

Plugin Details

Severity: Medium

ID: 181713

File Name: al2023_ALAS2023-2023-354.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/20/2023

Updated: 9/21/2023

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

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2020-21528


Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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:amazon:linux:nasm, p-cpe:/a:amazon:linux:nasm-debuginfo, p-cpe:/a:amazon:linux:nasm-debugsource, p-cpe:/a:amazon:linux:nasm-doc, p-cpe:/a:amazon:linux:nasm-rdoff, p-cpe:/a:amazon:linux:nasm-rdoff-debuginfo, cpe:/o:amazon:linux:2023

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: 9/14/2023

Vulnerability Publication Date: 8/22/2023

Reference Information

CVE: CVE-2020-21528