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Amazon Linux 2023 : gnupg2, gnupg2-minimal, gnupg2-smime (ALAS2023-2026-1912)

low Nessus Plugin ID 327373

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Synopsis

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

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1912 advisory.

 CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182. (CVE-2026-57062)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'dnf update gnupg2 --releasever 2023.12.20260706' or or 'dnf update --advisory ALAS2023-2026-1912 --releasever 2023.12.20260706' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1912.html

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

https://explore.alas.aws.amazon.com/CVE-2026-57062.html

Plugin Details

Severity: Low

ID: 327373

File Name: al2023_ALAS2023-2026-1912.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/16/2026

Updated: 7/16/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Low

Base Score: 1.2

Temporal Score: 0.9

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

CVSS Score Source: CVE-2026-57062

CVSS v3

Risk Factor: Low

Base Score: 2.9

Temporal Score: 2.6

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:gnupg2-minimal-debuginfo, p-cpe:/a:amazon:linux:gnupg2, p-cpe:/a:amazon:linux:gnupg2-debuginfo, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:gnupg2-minimal, p-cpe:/a:amazon:linux:gnupg2-debugsource, p-cpe:/a:amazon:linux:gnupg2-smime-debuginfo, p-cpe:/a:amazon:linux:gnupg2-smime

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/7/2026

Vulnerability Publication Date: 6/23/2026

Reference Information

CVE: CVE-2026-57062