Detections
Analytics
Amazon Linux 2023 : openvpn, openvpn-devel (ALAS2023-2026-2038)
high Nessus Plugin ID 331992
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2038 advisory.OpenVPN memory-leak in tls-crypt-v2 client key handling that could lead to out-of-memory situations and subsequent server crashes (CVE-2026-12932)
When dynamic tls-crypt is active, it is possible for tls_multi_process to set to_link to session->tls_wrap_reneg.work and later free that session, leaving to_link.data pointing to freed memory.
(CVE-2026-13117)
An internal server error condition that can be triggered by a malicous authenticated client, a very unlucky corruption of packets in transit or by an attacker that is able to inject a specially created packet at the right time and is able to observe the traffic to construct the packet. (CVE-2026-13698)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'dnf update openvpn --releasever 2023.12.20260803' or or 'dnf update --advisory ALAS2023-2026-2038 --releasever 2023.12.20260803' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2026-2038.html
https://alas.aws.amazon.com/faqs.html
https://explore.alas.aws.amazon.com/CVE-2026-12932.html
Plugin Details
Severity: High
ID: 331992
File Name: al2023_ALAS2023-2026-2038.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 8/4/2026
Updated: 8/4/2026
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: Medium
Score: 4.3
Percentile: 53.6
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2026-13698
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 7.1
Threat Score: 4.9
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-12932
Vulnerability Information
CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:openvpn-debuginfo, p-cpe:/a:amazon:linux:openvpn-debugsource, p-cpe:/a:amazon:linux:openvpn-devel, p-cpe:/a:amazon:linux:openvpn
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 8/4/2026
Vulnerability Publication Date: 7/1/2026
Reference Information
CVE: CVE-2026-12932, CVE-2026-13117, CVE-2026-13698
IAVA: 2026-A-0662