openSUSE: nginx Moderate CVE-2025-23419, 53859 Security Update 2025:03243-1
opensuse
September 17, 2025
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).
Topics Covered
Patch
## 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)
* nginx-source-1.21.5-150400.3.12.1
References
* bsc#1236851
* bsc#1248070
## 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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Announcement ID: SUSE-SU-2025:03243-1
Release Date: 2025-09-17T10:24:11Z
Affected Products:
* openSUSE Leap 15.4
Topics Covered
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