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Fedora 40: 2025-016ed44ddc critical: nginx TLS session bypass

fedora
Calendar Grey February 15, 2025
Dist Fedora Esm H88
An upgrade for Fedora 40 resolves a vulnerability in TLS session resumption, bolstering the security of nginx-based web application firewalls.
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 update critical Fedora vulnerability nginx web application firewall certificate verification TLS session tls session

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 #2344197 - CVE-2025-23419 nginx: TLS Session Resumption Vulnerability [fedora-40] https://bugzilla.redhat.com/show_bug.cgi?id=2344197

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-016ed44ddc' 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 40
Version: 1.6
Release: 9.fc40
URL: https://github.com/wargio/naxsi
Summary: nginx web application firewall module

Topics%20covered

Topics Covered

security advisory update critical Fedora vulnerability nginx web application firewall certificate verification TLS session tls session

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