SUSE-SU-2025:03089-1: moderate: Security update for nginx

[SLE-UPDATES]

# Security update for nginx

Announcement ID: SUSE-SU-2025:03089-1  
Release Date: 2025-09-05T10:39:06Z  
Rating: moderate  
References:

  * bsc#1236851
  * bsc#1248070

  
Cross-References:

  * 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
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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-2025-53859 ( SUSE ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2025-53859 ( NVD ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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-2025-53859 ( NVD ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

  
Affected Products:

  * openSUSE Leap 15.3

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

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 15.3  
    zypper in -t patch SUSE-2025-3089=1

## Package List:

  * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
    * nginx-1.19.8-150300.3.18.1
    * nginx-debuginfo-1.19.8-150300.3.18.1
    * nginx-debugsource-1.19.8-150300.3.18.1
  * openSUSE Leap 15.3 (noarch)
    * vim-plugin-nginx-1.19.8-150300.3.18.1
    * nginx-source-1.19.8-150300.3.18.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-23419.html
  * https://www.suse.com/security/cve/CVE-2025-53859.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1236851
  * https://bugzilla.suse.com/show_bug.cgi?id=1248070

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