SUSE-SU-2026:21203-1: important: Security update for strongswan

[SLE-UPDATES]

# Security update for strongswan

Announcement ID: SUSE-SU-2026:21203-1  
Release Date: 2026-04-16T09:06:50Z  
Rating: important  
References:

  * bsc#1257359
  * bsc#1259472

  
Cross-References:

  * CVE-2025-9615
  * CVE-2026-25075

  
CVSS scores:

  * CVE-2025-9615 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2025-9615 ( NVD ):  3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-25075 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-25075 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-25075 ( NVD ):  8.7
    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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-25075 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for strongswan fixes the following issues:

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.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-570=1

  * SUSE Linux Enterprise Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-570=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * strongswan-sqlite-6.0.4-160000.1.1
    * strongswan-fips-6.0.4-160000.1.1
    * strongswan-6.0.4-160000.1.1
    * strongswan-ipsec-debuginfo-6.0.4-160000.1.1
    * strongswan-mysql-6.0.4-160000.1.1
    * strongswan-nm-6.0.4-160000.1.1
    * strongswan-ipsec-6.0.4-160000.1.1
    * strongswan-nm-debuginfo-6.0.4-160000.1.1
    * strongswan-sqlite-debuginfo-6.0.4-160000.1.1
    * strongswan-mysql-debuginfo-6.0.4-160000.1.1
    * strongswan-debugsource-6.0.4-160000.1.1
    * strongswan-debuginfo-6.0.4-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (noarch)
    * strongswan-doc-6.0.4-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * strongswan-sqlite-6.0.4-160000.1.1
    * strongswan-fips-6.0.4-160000.1.1
    * strongswan-6.0.4-160000.1.1
    * strongswan-ipsec-debuginfo-6.0.4-160000.1.1
    * strongswan-mysql-6.0.4-160000.1.1
    * strongswan-nm-6.0.4-160000.1.1
    * strongswan-ipsec-6.0.4-160000.1.1
    * strongswan-nm-debuginfo-6.0.4-160000.1.1
    * strongswan-sqlite-debuginfo-6.0.4-160000.1.1
    * strongswan-mysql-debuginfo-6.0.4-160000.1.1
    * strongswan-debugsource-6.0.4-160000.1.1
    * strongswan-debuginfo-6.0.4-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
    * strongswan-doc-6.0.4-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-9615.html
  * https://www.suse.com/security/cve/CVE-2026-25075.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1257359
  * https://bugzilla.suse.com/show_bug.cgi?id=1259472

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.suse.com/pipermail/sle-updates/attachments/20260421/3848c4ca/attachment.htm>