SUSE-SU-2026:2197-1: important: Security update for strongswan

SLE-UPDATES null at suse.de
Mon Jun 1 12:30:48 UTC 2026 

# Security update for strongswan

Announcement ID: SUSE-SU-2026:2197-1  
Release Date: 2026-06-01T07:45:03Z  
Rating: important  
References:

  * bsc#1261705
  * bsc#1261706
  * bsc#1261708
  * bsc#1261712
  * bsc#1261717
  * bsc#1261720

  
Cross-References:

  * CVE-2026-35328
  * CVE-2026-35329
  * CVE-2026-35330
  * CVE-2026-35332
  * CVE-2026-35333
  * CVE-2026-35334

  
CVSS scores:

  * CVE-2026-35328 ( SUSE ):  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
  * CVE-2026-35328 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-35329 ( SUSE ):  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
  * CVE-2026-35329 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-35330 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-35330 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-35332 ( SUSE ):  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
  * CVE-2026-35332 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-35333 ( SUSE ):  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
  * CVE-2026-35333 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-35334 ( SUSE ):  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
  * CVE-2026-35334 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6

  
  
An update that solves six vulnerabilities can now be installed.

## Description:

This update for strongswan fixes the following issues:

  * CVE-2026-35328: infinite loop when handling supported versions TLS extension
    (bsc#1261712).
  * CVE-2026-35329: null pointer dereference when processing padding in PKCS#7
    (bsc#1261717).
  * CVE-2026-35330: integer underflow when handling EAP-SIM/AKA attributes
    (bsc#1261705).
  * CVE-2026-35332: null pointer dereference when handling ECDH public value in
    TLS (bsc#1261708).
  * CVE-2026-35333: integer underflow when handling RADIUS attributes
    (bsc#1261706).
  * CVE-2026-35334: null pointer dereference in RSA decryption (bsc#1261720).

## 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:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-2197=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2197=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2197=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * strongswan-debuginfo-5.9.12-150600.3.16.1
    * strongswan-mysql-debuginfo-5.9.12-150600.3.16.1
    * strongswan-ipsec-5.9.12-150600.3.16.1
    * strongswan-5.9.12-150600.3.16.1
    * strongswan-sqlite-debuginfo-5.9.12-150600.3.16.1
    * strongswan-hmac-5.9.12-150600.3.16.1
    * strongswan-libs0-5.9.12-150600.3.16.1
    * strongswan-libs0-debuginfo-5.9.12-150600.3.16.1
    * strongswan-ipsec-debuginfo-5.9.12-150600.3.16.1
    * strongswan-sqlite-5.9.12-150600.3.16.1
    * strongswan-nm-5.9.12-150600.3.16.1
    * strongswan-nm-debuginfo-5.9.12-150600.3.16.1
    * strongswan-debugsource-5.9.12-150600.3.16.1
    * strongswan-mysql-5.9.12-150600.3.16.1
  * openSUSE Leap 15.6 (noarch)
    * strongswan-doc-5.9.12-150600.3.16.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * strongswan-debuginfo-5.9.12-150600.3.16.1
    * strongswan-ipsec-5.9.12-150600.3.16.1
    * strongswan-5.9.12-150600.3.16.1
    * strongswan-hmac-5.9.12-150600.3.16.1
    * strongswan-libs0-5.9.12-150600.3.16.1
    * strongswan-libs0-debuginfo-5.9.12-150600.3.16.1
    * strongswan-ipsec-debuginfo-5.9.12-150600.3.16.1
    * strongswan-debugsource-5.9.12-150600.3.16.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
    * strongswan-doc-5.9.12-150600.3.16.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * strongswan-debuginfo-5.9.12-150600.3.16.1
    * strongswan-ipsec-5.9.12-150600.3.16.1
    * strongswan-5.9.12-150600.3.16.1
    * strongswan-hmac-5.9.12-150600.3.16.1
    * strongswan-libs0-5.9.12-150600.3.16.1
    * strongswan-libs0-debuginfo-5.9.12-150600.3.16.1
    * strongswan-ipsec-debuginfo-5.9.12-150600.3.16.1
    * strongswan-debugsource-5.9.12-150600.3.16.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
    * strongswan-doc-5.9.12-150600.3.16.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-35328.html
  * https://www.suse.com/security/cve/CVE-2026-35329.html
  * https://www.suse.com/security/cve/CVE-2026-35330.html
  * https://www.suse.com/security/cve/CVE-2026-35332.html
  * https://www.suse.com/security/cve/CVE-2026-35333.html
  * https://www.suse.com/security/cve/CVE-2026-35334.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261705
  * https://bugzilla.suse.com/show_bug.cgi?id=1261706
  * https://bugzilla.suse.com/show_bug.cgi?id=1261708
  * https://bugzilla.suse.com/show_bug.cgi?id=1261712
  * https://bugzilla.suse.com/show_bug.cgi?id=1261717
  * https://bugzilla.suse.com/show_bug.cgi?id=1261720

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