Amazon Linux 2 : nasm (ALAS-2023-2277)

medium Nessus Plugin ID 182636

Synopsis

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

Description

The version of nasm installed on the remote host is prior to 2.15.03-3. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2277 advisory.

- A Use After Free vulnerability in function new_Token in asm/preproc.c in nasm 2.14.02 allows attackers to cause a denial of service via crafted nasm command. (CVE-2020-18780)

- 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)

- NASM v2.16 was discovered to contain a segmentation violation in the component ieee_write_file at /output/outieee.c. (CVE-2022-46457)

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

Solution

Run 'yum update nasm' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2277.html

https://alas.aws.amazon.com/cve/html/CVE-2020-18780.html

https://alas.aws.amazon.com/cve/html/CVE-2020-21528.html

https://alas.aws.amazon.com/cve/html/CVE-2022-46457.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Medium

ID: 182636

File Name: al2_ALAS-2023-2277.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/5/2023

Updated: 10/6/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

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-2022-46457

CVSS v3

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-doc, p-cpe:/a:amazon:linux:nasm-rdoff, 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: 9/27/2023

Vulnerability Publication Date: 1/4/2023

Reference Information

CVE: CVE-2020-18780, CVE-2020-21528, CVE-2022-46457