SUSE SLES16 Security Update : strongswan (SUSE-SU-2026:21203-1)

high Nessus Plugin ID 309127

Language:

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:21203-1 advisory.

Update to strongswan 6.0.4:

- CVE-2025-9615: NetworkManager File Access (bsc#1257359).
- CVE-2026-25075: Integer Underflow When Handling EAP-TTLS AVP (bsc#1259472).

Changes for strongswan:

- Fixed a vulnerability in the NetworkManager plugin that potentially allows using credentials of other local users. This vulnerability has been registered as CVE-2025-9615.
- The maximum supported length for section names in swanctl.conf has been increased to the upper limit of 256 characters that's enforced by VICI.
- Prevent a crash if a confused peer rekeys a Child SA twice before sending a delete.
- Fixed a memory leak if a peer's self-signed certificate is untrusted.

Tenable has extracted the preceding description block directly from the SUSE 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

Update the affected packages.

Plugin Details

Severity: High

ID: 309127

File Name: suse_SU-2026-21203-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 4/22/2026

Updated: 4/22/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-9615

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.9

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-25075

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:strongswan-fips, p-cpe:/a:novell:suse_linux:strongswan-doc, p-cpe:/a:novell:suse_linux:strongswan-ipsec, p-cpe:/a:novell:suse_linux:strongswan-sqlite, p-cpe:/a:novell:suse_linux:strongswan, cpe:/o:novell:suse_linux:16, p-cpe:/a:novell:suse_linux:strongswan-mysql, p-cpe:/a:novell:suse_linux:strongswan-nm

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/16/2026

Vulnerability Publication Date: 1/26/2026

Reference Information

CVE: CVE-2025-9615, CVE-2026-25075

SuSE: SUSE-SU-2026:21203-1

Detections

Analytics