SUSE-SU-2025:3873-1: important: Security update for strongswan

[SLE-SECURITY-UPDATES]

# Security update for strongswan

Announcement ID: SUSE-SU-2025:3873-1  
Release Date: 2025-10-30T15:10:55Z  
Rating: important  
References:

  * bsc#1251941

  
Cross-References:

  * CVE-2025-62291

  
CVSS scores:

  * CVE-2025-62291 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * openSUSE Leap 15.5
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for strongswan fixes the following issues:

  * CVE-2025-62291: fixed a buffer overflow when handling EAP-MSCHAPv2 failure
    requests (bsc#1251941)

## 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 High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-3873=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-3873=1

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-3873=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2025-3873=1

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2025-3873=1

## Package List:

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * strongswan-ipsec-5.9.11-150500.5.9.1
    * strongswan-ipsec-debuginfo-5.9.11-150500.5.9.1
    * strongswan-libs0-5.9.11-150500.5.9.1
    * strongswan-hmac-5.9.11-150500.5.9.1
    * strongswan-debugsource-5.9.11-150500.5.9.1
    * strongswan-libs0-debuginfo-5.9.11-150500.5.9.1
    * strongswan-debuginfo-5.9.11-150500.5.9.1
    * strongswan-5.9.11-150500.5.9.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
    * strongswan-doc-5.9.11-150500.5.9.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * strongswan-ipsec-5.9.11-150500.5.9.1
    * strongswan-ipsec-debuginfo-5.9.11-150500.5.9.1
    * strongswan-libs0-5.9.11-150500.5.9.1
    * strongswan-hmac-5.9.11-150500.5.9.1
    * strongswan-debugsource-5.9.11-150500.5.9.1
    * strongswan-libs0-debuginfo-5.9.11-150500.5.9.1
    * strongswan-debuginfo-5.9.11-150500.5.9.1
    * strongswan-5.9.11-150500.5.9.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
    * strongswan-doc-5.9.11-150500.5.9.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * strongswan-ipsec-5.9.11-150500.5.9.1
    * strongswan-ipsec-debuginfo-5.9.11-150500.5.9.1
    * strongswan-libs0-5.9.11-150500.5.9.1
    * strongswan-hmac-5.9.11-150500.5.9.1
    * strongswan-debugsource-5.9.11-150500.5.9.1
    * strongswan-libs0-debuginfo-5.9.11-150500.5.9.1
    * strongswan-debuginfo-5.9.11-150500.5.9.1
    * strongswan-5.9.11-150500.5.9.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
    * strongswan-doc-5.9.11-150500.5.9.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * strongswan-ipsec-5.9.11-150500.5.9.1
    * strongswan-ipsec-debuginfo-5.9.11-150500.5.9.1
    * strongswan-libs0-5.9.11-150500.5.9.1
    * strongswan-hmac-5.9.11-150500.5.9.1
    * strongswan-debugsource-5.9.11-150500.5.9.1
    * strongswan-libs0-debuginfo-5.9.11-150500.5.9.1
    * strongswan-debuginfo-5.9.11-150500.5.9.1
    * strongswan-5.9.11-150500.5.9.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
    * strongswan-doc-5.9.11-150500.5.9.1
  * openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
    * strongswan-ipsec-5.9.11-150500.5.9.1
    * strongswan-sqlite-5.9.11-150500.5.9.1
    * strongswan-nm-debuginfo-5.9.11-150500.5.9.1
    * strongswan-ipsec-debuginfo-5.9.11-150500.5.9.1
    * strongswan-libs0-5.9.11-150500.5.9.1
    * strongswan-hmac-5.9.11-150500.5.9.1
    * strongswan-sqlite-debuginfo-5.9.11-150500.5.9.1
    * strongswan-debugsource-5.9.11-150500.5.9.1
    * strongswan-libs0-debuginfo-5.9.11-150500.5.9.1
    * strongswan-nm-5.9.11-150500.5.9.1
    * strongswan-mysql-debuginfo-5.9.11-150500.5.9.1
    * strongswan-debuginfo-5.9.11-150500.5.9.1
    * strongswan-mysql-5.9.11-150500.5.9.1
    * strongswan-5.9.11-150500.5.9.1
  * openSUSE Leap 15.5 (noarch)
    * strongswan-doc-5.9.11-150500.5.9.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-62291.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1251941

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