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SUSE StrongSwan Important Security Issues Resolved 2026-1637-1

An update that solves seven vulnerabilities can now be installed.. # Security update for strongswan Announcement ID: SUSE-SU-2026:1637-1 Release Date: 2026-04-27T16:59:38Z Rating: important References: * bsc#1261705 * bsc#1261706 * bsc#1261708 * bsc#1261712 * bsc#1261717 * bsc#1261718 * bsc#1261720 Cross-References: * CVE-2026-35328 * CVE-2026-35329 * CVE-2026-35330 * CVE-2026-35331 * 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-2026-35331 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N * CVE-2026-35331 ( SUSE ): 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N * 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: * Basesystem Module 15-SP7 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP7 * SUSE Linux Enterprise WorkstationExtension 15 SP7 * SUSE Package Hub 15 15-SP7 An update that solves seven 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). ## 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: * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1637=1 * SUSE Package Hub 15 15-SP7 zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-1637=1 * SUSE Linux Enterprise Workstation Extension 15 SP7 zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-1637=1 ## Package List: * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64) * strongswan-libs0-5.9.14-150700.3.14.1 * strongswan-ipsec-debuginfo-5.9.14-150700.3.14.1 * strongswan-libs0-debuginfo-5.9.14-150700.3.14.1 * strongswan-hmac-5.9.14-150700.3.14.1 * strongswan-ipsec-5.9.14-150700.3.14.1 * strongswan-5.9.14-150700.3.14.1 * strongswan-debuginfo-5.9.14-150700.3.14.1 * strongswan-debugsource-5.9.14-150700.3.14.1 * Basesystem Module 15-SP7 (noarch) * strongswan-doc-5.9.14-150700.3.14.1 * SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64) * strongswan-debuginfo-5.9.14-150700.3.14.1 * strongswan-nm-5.9.14-150700.3.14.1 * strongswan-debugsource-5.9.14-150700.3.14.1 * strongswan-nm-debuginfo-5.9.14-150700.3.14.1 * SUSE Linux Enterprise Workstation Extension 15 SP7 (x86_64) * strongswan-debuginfo-5.9.14-150700.3.14.1 * strongswan-nm-5.9.14-150700.3.14.1 * strongswan-debugsource-5.9.14-150700.3.14.1 * strongswan-nm-debuginfo-5.9.14-150700.3.14.1 ## 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-2026-35331.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://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 . SUSE updates strongswan resolving multiple important security issues related to TLS handling and certificate validation.. strongswan security patch, SUSE update vulnerabilities, Linux strongswan fix. . Severity: Important. LinuxSecurity.com Team

Apr 28, 2026 •Important SuSE