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openSUSE 2026 0979-1 strongswan Important Integer Underflow CVE-2026-25075

suse
Calendar Grey March 24, 2026
Dist Suse Esm H88
Important SUSE security advisory for strongswan addressing integer underflow risk. Guidance on obtaining the update is included.
An update that solves one vulnerability can now be installed.

Summary

## This update for strongswan fixes the following issues: * CVE-2026-25075: Fixed integer underflow when handling EAP-TTLS AVP (bsc#1259472). ## 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-2026-979=1 openSUSE-SLE-15.6-2026-979=1 * SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-979=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-979=1 ## Package List: * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586) * strongswan-debuginfo-5.9.12-150600.3.11.1

Topics%20covered

Topics Covered

security advisory DoS important integer underflow OpenSUSE strongSwan

References

* bsc#1259472

Cross-

* CVE-2026-25075

CVSS scores:

* 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:

* 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 one vulnerability can now be installed.

##

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0979-1
Release Date: 2026-03-23T16:46:36Z
Rating: important

Topics%20covered

Topics Covered

security advisory DoS important integer underflow OpenSUSE strongSwan

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