Alerts This Week
Warning Icon 1 690
Alerts This Week
Warning Icon 1 690

openSUSE StrongSwan Important Security Update DoS Exploits 2026-2459-1

opensuse
Calendar Grey June 19, 2026
Dist Opensuse Esm H88
Critical strongswan security updates address multiple vulnerabilities on openSUSE systems requiring prompt installation.
An update that solves eight 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-2026-35331: accepting certificates violating name constraints

(bsc#1261718).

* 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: possible null pointer dereference in RSA decryption

(bsc#1261720).

* CVE-2026-47895: double-free when destroying certain cloned identities

(bsc#1266360).

Topics%20covered

Topics Covered

security advisory security issue DoS important OpenSUSE strongSwan

Patch

## 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 15.5

zypper in -t patch SUSE-2026-2459=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2459=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2459=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2459=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2459=1

Package List

* openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)

* strongswan-sqlite-5.9.11-150500.5.23.2

* strongswan-debugsource-5.9.11-150500.5.23.2

* strongswan-hmac-5.9.11-150500.5.23.2

* strongswan-ipsec-debuginfo-5.9.11-150500.5.23.2

* strongswan-5.9.11-150500.5.23.2

* strongswan-libs0-debuginfo-5.9.11-150500.5.23.2

* strongswan-mysql-5.9.11-150500.5.23.2

* strongswan-mysql-debuginfo-5.9.11-150500.5.23.2

* strongswan-debuginfo-5.9.11-150500.5.23.2

* strongswan-sqlite-debuginfo-5.9.11-150500.5.23.2

* strongswan-ipsec-5.9.11-150500.5.23.2

* strongswan-nm-5.9.11-150500.5.23.2

* strongswan-libs0-5.9.11-150500.5.23.2

* strongswan-nm-debuginfo-5.9.11-150500.5.23.2

* openSUSE Leap 15.5 (noarch)

* strongswan-doc-5.9.11-150500.5.23.2

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64

x86_64)

* strongswan-debugsource-5.9.11-150500.5.23.2

* strongswan-hmac-5.9.11-150500.5.23.2

* strongswan-ipsec-debuginfo-5.9.11-150500.5.23.2

* strongswan-5.9.11-150500.5.23.2

*...

Read the Full Advisory

References

* bsc#1261705

* bsc#1261706

* bsc#1261708

* bsc#1261712

* bsc#1261717

* bsc#1261718

* bsc#1261720

* bsc#1266360

## 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-2026-35331.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://www.suse.com/security/cve/CVE-2026-47895.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=1261718

* https://bugzilla.suse.com/show_bug.cgi?id=1261720

* https://bugzilla.suse.com/show_bug.cgi?id=1266360

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2459-1
Release Date: 2026-06-18T16:40:03Z
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

Topics%20covered

Topics Covered

security advisory security issue DoS important OpenSUSE strongSwan

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here