Detections
Analytics
SUSE SLED15 / SLES15 Security Update : strongswan (SUSE-SU-2026:1637-1)
high Nessus Plugin ID 311744
Synopsis
The remote SUSE host is missing one or more security updates.Description
The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1637-1 advisory.- 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).
Tenable has extracted the preceding description block directly from the SUSE security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://bugzilla.suse.com/1261705
https://bugzilla.suse.com/1261706
https://bugzilla.suse.com/1261708
https://bugzilla.suse.com/1261712
https://bugzilla.suse.com/1261717
https://bugzilla.suse.com/1261718
https://bugzilla.suse.com/1261720
https://lists.suse.com/pipermail/sle-updates/2026-April/046049.html
https://www.suse.com/security/cve/CVE-2026-35328
https://www.suse.com/security/cve/CVE-2026-35329
https://www.suse.com/security/cve/CVE-2026-35330
https://www.suse.com/security/cve/CVE-2026-35331
https://www.suse.com/security/cve/CVE-2026-35332
Plugin Details
Severity: High
ID: 311744
File Name: suse_SU-2026-1637-1.nasl
Version: 1.1
Type: Local
Agent: unix
Family: SuSE Local Security Checks
Published: 5/2/2026
Updated: 5/2/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: High
Base Score: 7.6
Temporal Score: 5.6
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-35330
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:novell:suse_linux:strongswan-hmac, p-cpe:/a:novell:suse_linux:strongswan-doc, p-cpe:/a:novell:suse_linux:strongswan-ipsec, p-cpe:/a:novell:suse_linux:strongswan, p-cpe:/a:novell:suse_linux:strongswan-libs0, p-cpe:/a:novell:suse_linux:strongswan-nm, cpe:/o:novell:suse_linux:15
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 4/27/2026
Vulnerability Publication Date: 4/27/2026
Reference Information
CVE: CVE-2026-35328, CVE-2026-35329, CVE-2026-35330, CVE-2026-35331, CVE-2026-35332, CVE-2026-35333, CVE-2026-35334
SuSE: SUSE-SU-2026:1637-1