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openSUSE-SU-2026:21524-1

Опубликовано: 04 авг. 2026
Источник: suse-cvrf

Описание

Security update for nginx

This update for nginx fixes the following issue

  • CVE-2026-42533: map directive and regex matching vulnerability (bsc#1271514).

Список пакетов

openSUSE Leap 16.0
nginx-1.27.2-160000.7.1
nginx-source-1.27.2-160000.7.1

Ссылки

Описание

A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable in a string expression under certain conditions. An unauthenticated attacker along with conditions beyond their 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. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or to possibly trigger a code execution. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Затронутые продукты
openSUSE Leap 16.0:nginx-1.27.2-160000.7.1
openSUSE Leap 16.0:nginx-source-1.27.2-160000.7.1
Ссылки