========================================================================== Ubuntu Security Notice USN-7715-1 August 25, 2025
nginx vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: nginx could be made to expose sensitive information over the network. Software Description: - nginx: small, powerful, scalable web/proxy server Details: It was discovered that the nginx ngx_mail_smtp_module module incorrectly handled certain memory operations when doing SMTP authentication. This could possibly result in sensitive information being sent to the authentication server. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.04 nginx 1.26.3-2ubuntu1.2 nginx-core 1.26.3-2ubuntu1.2 nginx-extras 1.26.3-2ubuntu1.2 nginx-full 1.26.3-2ubuntu1.2 nginx-light 1.26.3-2ubuntu1.2 Ubuntu 24.04 LTS nginx 1.24.0-2ubuntu7.5 nginx-core 1.24.0-2ubuntu7.5 nginx-extras 1.24.0-2ubuntu7.5 nginx-full 1.24.0-2ubuntu7.5 nginx-light 1.24.0-2ubuntu7.5 Ubuntu 22.04 LTS nginx 1.18.0-6ubuntu14.7 nginx-core 1.18.0-6ubuntu14.7 nginx-full 1.18.0-6ubuntu14.7 nginx-light 1.18.0-6ubuntu14.7 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7715-1 CVE-2025-53859 Package Information: https://launchpad.net/ubuntu/+source/nginx/1.26.3-2ubuntu1.2 https://launchpad.net/ubuntu/+source/nginx/1.24.0-2ubuntu7.5 https://launchpad.net/ubuntu/+source/nginx/1.18.0-6ubuntu14.7
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