Security update for apache2-mod_auth_openidc SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:01962-1 Final 1 1 2025-06-16T10:04:07Z current 2025-06-16T10:04:07Z 2025-06-16T10:04:07Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for apache2-mod_auth_openidc This update for apache2-mod_auth_openidc fixes the following issues: - CVE-2025-3891: Fixed denial of service via an empty POST request when OIDCPreservePost is enabled (bsc#1242015). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2025-1962,SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-1962,SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-1962,SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-1962,SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-1962,SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-1962,SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-1962,SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-1962,SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-1962,SUSE-SLE-Product-SLES_SAP-15-SP3-2025-1962,SUSE-SLE-Product-SLES_SAP-15-SP4-2025-1962,SUSE-SLE-Product-SLES_SAP-15-SP5-2025-1962,SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2025-1962,SUSE-SLE-Product-SUSE-Manager-Server-4.3-2025-1962,SUSE-Storage-7.1-2025-1962 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-202501962-1/ Link for SUSE-SU-2025:01962-1 https://lists.suse.com/pipermail/sle-updates/2025-June/040310.html E-Mail link for SUSE-SU-2025:01962-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1242015 SUSE Bug 1242015 https://www.suse.com/security/cve/CVE-2025-3891/ SUSE CVE CVE-2025-3891 page SUSE Enterprise Storage 7.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Manager Proxy 4.3 SUSE Manager Server 4.3 apache2-mod_auth_openidc-2.3.8-150100.3.34.1 apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Enterprise Storage 7.1 apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Manager Proxy 4.3 apache2-mod_auth_openidc-2.3.8-150100.3.34.1 as a component of SUSE Manager Server 4.3 A flaw was found in the mod_auth_openidc module for Apache httpd. This flaw allows a remote, unauthenticated attacker to trigger a denial of service by sending an empty POST request when the OIDCPreservePost directive is enabled. The server crashes consistently, affecting availability. CVE-2025-3891 SUSE Enterprise Storage 7.1:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise Server 15 SP3-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise Server 15 SP4-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise Server 15 SP5-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Manager Proxy 4.3:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 SUSE Manager Server 4.3:apache2-mod_auth_openidc-2.3.8-150100.3.34.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202501962-1/ https://www.suse.com/security/cve/CVE-2025-3891.html CVE-2025-3891 https://bugzilla.suse.com/1242015 SUSE Bug 1242015