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openSUSE-SU-2026:20796-1

Опубликовано: 25 мая 2026
Источник: suse-cvrf

Описание

Security update for nginx

This update for nginx fixes the following issues

  • CVE-2026-27651: denial of service via undisclosed requests when the ngx_mail_auth_http_module is enabled (bsc#1260415).
  • CVE-2026-32647: NGINX worker memory over-read or over-write via a specially crafted MP4 file (bsc#1260420).
  • CVE-2026-40701: heap use-after-free in the worker process when the ssl_verify_client and the ssl_ocsp directives are set due to issue in the ngx_http_ssl_module module (bsc#1265229).
  • CVE-2026-42934: heap buffer overread in the worker process due to issue in the ngx_http_charset_module module (bsc#1265231).
  • CVE-2026-42945: heap buffer overflow via crafted HTTP requests due to issue in ngx_http_rewrite_module (bsc#1265232).
  • CVE-2026-42946: excessive memory allocation and data overread due to issue in the ngx_http_scgi_module and ngx_http_uwsgi_module modules (bsc#1265233).

Список пакетов

openSUSE Leap 16.0
nginx-1.27.2-160000.4.1
nginx-source-1.27.2-160000.4.1

Ссылки

Описание

When the ngx_mail_auth_http_module module is enabled on NGINX Plus or NGINX Open Source, undisclosed requests can cause worker processes to terminate. This issue may occur when (1) CRAM-MD5 or APOP authentication is enabled, and (2) the authentication server permits retry by returning the Auth-Wait response header. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Затронутые продукты
openSUSE Leap 16.0:nginx-1.27.2-160000.4.1
openSUSE Leap 16.0:nginx-source-1.27.2-160000.4.1
Ссылки

Описание

NGINX Open Source and NGINX Plus have a vulnerability in the ngx_http_mp4_module module, which might allow an attacker to trigger a buffer over-read or over-write to the NGINX worker memory resulting in its termination or possibly code execution, using a specially crafted MP4 file. This issue affects NGINX Open Source and NGINX Plus if it is built with the ngx_http_mp4_module module and the mp4 directive is used in the configuration file. Additionally, the attack is possible only if an attacker can trigger the processing of a specially crafted MP4 file with the ngx_http_mp4_module module. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Затронутые продукты
openSUSE Leap 16.0:nginx-1.27.2-160000.4.1
openSUSE Leap 16.0:nginx-source-1.27.2-160000.4.1
Ссылки

Описание

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the leaf parameters are configured with a resolver. With this configuration, an unauthenticated attacker can send requests along with conditions beyond its control that may cause a heap-use-after-free error in the NGINX worker process. This vulnerability may result in limited modification of data or the NGINX worker process restarting. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Затронутые продукты
openSUSE Leap 16.0:nginx-1.27.2-160000.4.1
openSUSE Leap 16.0:nginx-source-1.27.2-160000.4.1
Ссылки

Описание

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When charset, source_charset, and charset_map and proxy_pass with disabled buffering ("off") directives are configured, unauthenticated attackers can send requests that with conditions beyond the attackers' control to cause a heap buffer over-read in the NGINX worker process, leading to limited disclosure of memory or a restart. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Затронутые продукты
openSUSE Leap 16.0:nginx-1.27.2-160000.4.1
openSUSE Leap 16.0:nginx-source-1.27.2-160000.4.1
Ссылки

Описание

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Затронутые продукты
openSUSE Leap 16.0:nginx-1.27.2-160000.4.1
openSUSE Leap 16.0:nginx-source-1.27.2-160000.4.1
Ссылки

Описание

A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to read the memory of the NGINX worker process or restart it. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Затронутые продукты
openSUSE Leap 16.0:nginx-1.27.2-160000.4.1
openSUSE Leap 16.0:nginx-source-1.27.2-160000.4.1
Ссылки