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OpenAdvisories
Medium ALAS2023-2025-842 1 CVE

Moderate: nginx security update (Amazon Linux 2023)

Published Feb 12, 2025 · Updated Feb 21, 2025

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2025-23419: When multiple server blocks are configured to share the same IP address and port, an attacker can use session resumption to bypass client certificate authentication requirements on these servers. This vulnerability arises when TLS Session Tickets https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_ticket_key are used and/or the SSL session cache https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_cache are used in the default server and the default server is performing client certificate authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Fixed packages 18

ReleasePackageFixed in
Amazon Linux · 2023 nginx 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-all-modules 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-core 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-core-debuginfo 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-debuginfo 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-debugsource 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-filesystem 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-devel 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-http-image-filter 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-http-image-filter-debuginfo 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-http-perl 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-http-perl-debuginfo 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-http-xslt-filter 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-http-xslt-filter-debuginfo 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-mail 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-mail-debuginfo 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-stream 1:1.26.3-1.amzn2023.0.1
Amazon Linux · 2023 nginx-mod-stream-debuginfo 1:1.26.3-1.amzn2023.0.1

Vulnerabilities 1

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-23419.html