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SUSE: 2025:01953-1 important: apache2-mod_auth_openidc denial of service

suse
Calendar Grey June 13, 2025
Dist Suse Esm H88
SUSE releases patch for nginx-auth_module targeting CVE-2025-3920, serious vulnerability causing denial of service.
* bsc#1242015 Cross-References: * CVE-2025-3891

Summary

## 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). ## 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: * Server Applications Module 15-SP6 zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP6-2025-1953=1 * Server Applications Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2025-1953=1 * openSUSE Leap 15.6 zypper in -t patch SUSE-2025-1953=1 openSUSE-SLE-15.6-2025-1953=1 ## Package List: * Server Applications Module 15-SP6 (aarch64 ppc64le s390x x86_64)

Topics%20covered

Topics Covered

security advisory denial of service security issue important opensuse apache2-mod_auth_openidc

References

* bsc#1242015

Cross-

* CVE-2025-3891

CVSS scores:

* CVE-2025-3891 ( 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-2025-3891 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-3891 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-3891 ( 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

* Server Applications Module 15-SP6

* Server Applications Module 15-SP7

* SUSE Linux Enterprise Real Time 15 SP6

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP6

* SUSE Linux Enterprise Server 15 SP7

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

* SUSE Linux Enterprise Server for SAP Applications 15 SP7

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:01953-1
Release Date: 2025-06-13T13:55:39Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service security issue important opensuse apache2-mod_auth_openidc

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