Amazon Linux 2023 Security Advisory: ALAS-2025-842
Advisory Release Date: 2025-02-12 22:57 Pacific
Advisory Updated Date: 2025-02-21 13:45 Pacific
Severity:
Medium
Issue Overview:
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. (CVE-2025-23419)
Affected Packages:
nginx
Issue Correction:
Run dnf update nginx --releasever 2023.6.20250218 to update your system.
New Packages:
aarch64:
nginx-core-debuginfo-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-stream-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-stream-debuginfo-1.26.3-1.amzn2023.0.1.aarch64
nginx-core-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-http-image-filter-1.26.3-1.amzn2023.0.1.aarch64
nginx-debuginfo-1.26.3-1.amzn2023.0.1.aarch64
nginx-debugsource-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-http-xslt-filter-debuginfo-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-http-xslt-filter-1.26.3-1.amzn2023.0.1.aarch64
nginx-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-mail-debuginfo-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-http-perl-debuginfo-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-mail-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-devel-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-http-image-filter-debuginfo-1.26.3-1.amzn2023.0.1.aarch64
nginx-mod-http-perl-1.26.3-1.amzn2023.0.1.aarch64
noarch:
nginx-all-modules-1.26.3-1.amzn2023.0.1.noarch
nginx-filesystem-1.26.3-1.amzn2023.0.1.noarch
src:
nginx-1.26.3-1.amzn2023.0.1.src
x86_64:
nginx-mod-mail-1.26.3-1.amzn2023.0.1.x86_64
nginx-debuginfo-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-http-image-filter-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-mail-debuginfo-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-stream-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-devel-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-http-perl-1.26.3-1.amzn2023.0.1.x86_64
nginx-core-debuginfo-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-http-image-filter-debuginfo-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-http-perl-debuginfo-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-http-xslt-filter-1.26.3-1.amzn2023.0.1.x86_64
nginx-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-http-xslt-filter-debuginfo-1.26.3-1.amzn2023.0.1.x86_64
nginx-mod-stream-debuginfo-1.26.3-1.amzn2023.0.1.x86_64
nginx-core-1.26.3-1.amzn2023.0.1.x86_64
nginx-debugsource-1.26.3-1.amzn2023.0.1.x86_64