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Fedora 41: FEDORA-2025-66ebd291f8 Critical: nginx TLS Session Bypass

fedora
Calendar Grey February 15, 2025
Dist Fedora Esm H88
The latest security advisory for Fedora 41 regarding Nginx fixes significant vulnerabilities related to the management of TLS connections. Comprehensive information is provided.
Changes with nginx 1.26.3 05 Feb 2025 *) Security: insufficient check in virtual servers handling with TLSv1.3 SNI allowed to reuse SSL sessions in a different...

Summary

naxsi is an nginx module that provides score based Web Application Firewall

(WAF) abilities in a highly granular fashion.

Update Information:

Changes with nginx 1.26.3 05 Feb 2025 *) Security: insufficient check in virtual servers handling with TLSv1.3 SNI allowed to reuse SSL sessions in a different virtual server, to bypass client SSL certificates verification (CVE-2025-23419). *) Bugfix: in the ngx_http_mp4_module. Thanks to Nils Bars. *) Workaround: "gzip filter failed to use preallocated memory" alerts appeared in logs when using zlib-ng. *) Bugfix: nginx could not build libatomic library using the library sources if the --with-libatomic=DIR option was used. *) Bugfix: nginx now ignores QUIC version negotiation packets from clients. *) Bugfix: nginx could not be built on Solaris 10 and earlier with the ngx_http_v3_module. *) Bugfixes in HTTP/3.

Topics%20covered

Topics Covered

security advisory fedora critical Fedora nginx web application firewall TLS issue TLS session session resumption insufficient check SNI

Change Log

* Thu Feb 6 2025 Felix Kaechele - 1.6-9 - Rebuild for nginx 1.26.3 * Fri Jan 17 2025 Fedora Release Engineering - 1.6-8 - Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild * Mon Aug 26 2024 Felix Kaechele - 1.6-7 - Rebuild for nginx 1.26.2... again.

References


[ 1 ] Bug #2277663 - please switch to using systemd-sysusers to create the nginx user https://bugzilla.redhat.com/show_bug.cgi?id=2277663 [ 2 ] Bug #2344198 - CVE-2025-23419 nginx: TLS Session Resumption Vulnerability [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2344198

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-66ebd291f8' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
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Name: nginx-mod-naxsi
Product: Fedora 41
Version: 1.6
Release: 9.fc41
URL: https://github.com/wargio/naxsi
Summary: nginx web application firewall module

Topics%20covered

Topics Covered

security advisory fedora critical Fedora nginx web application firewall TLS issue TLS session session resumption insufficient check SNI

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