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CVE-2025-53859

Опубликовано: 13 авг. 2025
Источник: ubuntu
Приоритет: medium
CVSS3: 3.7

Описание

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

РелизСтатусПримечание
devel

released

1.26.3-3ubuntu3
esm-infra-legacy/trusty

released

1.4.6-1ubuntu3.9+esm6
esm-infra-legacy/xenial

released

1.10.3-0ubuntu0.16.04.5+esm7
esm-infra/bionic

released

1.14.0-0ubuntu1.11+esm2
esm-infra/focal

released

1.18.0-0ubuntu1.7+esm1
esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

released

1.18.0-6ubuntu14.7
noble

released

1.24.0-2ubuntu7.5
plucky

released

1.26.3-2ubuntu1.2
questing

released

1.26.3-3ubuntu3

Показывать по

3.7 Low

CVSS3

Связанные уязвимости

CVSS3: 3.7
redhat
12 месяцев назад

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS3: 3.7
nvd
12 месяцев назад

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS3: 5.6
msrc
11 месяцев назад

NGINX ngx_mail_smtp_module vulnerability

CVSS3: 3.7
debian
12 месяцев назад

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_ ...

CVSS3: 3.7
github
12 месяцев назад

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_mail_smtp_module that might allow an unauthenticated attacker to over-read NGINX SMTP authentication process memory; as a result, the server side may leak arbitrary bytes sent in a request to the authentication server. This issue happens during the NGINX SMTP authentication process and requires the attacker to make preparations against the target system to extract the leaked data. The issue affects NGINX only if (1) it is built with the ngx_mail_smtp_module, (2) the smtp_auth directive is configured with method "none," and (3) the authentication server returns the "Auth-Wait" response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

3.7 Low

CVSS3

Уязвимость CVE-2025-53859