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openSUSE: nginx Moderate Session Leak Auth Bypass CVE-2025-23419

suse
Calendar Grey September 17, 2025
Dist Suse Esm H88
An update has been released to fix a session leak and critical TLS authentication bypass vulnerability in nginx on openSUSE, vital for user security and deployment reliability
* bsc#1236851 * bsc#1248070 Cross-References: * CVE-2025-23419

Summary

## This update for nginx fixes the following issues: * CVE-2025-53859: the server side may leak arbitrary bytes during the NGINX SMTP authentication process (bsc#1248070). * CVE-2025-23419: session resumption can bypass client certificate authentication requirements using TLSv1.3 (bsc#1236851). ## 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 15.4 zypper in -t patch SUSE-2025-3243=1 ## Package List: * openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586) * nginx-debugsource-1.21.5-150400.3.12.1 * nginx-debuginfo-1.21.5-150400.3.12.1 * nginx-1.21.5-150400.3.12.1 * openSUSE Leap 15.4 (noarch)

Topics%20covered

Topics Covered

security advisory moderate nginx OpenSUSE session leak TLS authentication

References

* bsc#1236851

* bsc#1248070

Cross-

* CVE-2025-23419

* CVE-2025-53859

CVSS scores:

* CVE-2025-23419 ( SUSE ): 5.3

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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-2025-23419 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

* CVE-2025-23419 ( NVD ): 5.3

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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-2025-23419 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

* CVE-2025-53859 ( SUSE ): 6.3

Announcement ID: SUSE-SU-2025:03243-1
Release Date: 2025-09-17T10:24:11Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate nginx OpenSUSE session leak TLS authentication

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