Описание
Security update for nginx
This update for nginx fixes the following issues:
- CVE-2026-42055: heap buffer overflow in the
ngx_http_proxy_v2_moduleandngx_http_grpc_modulemodules (bsc#1268492). - CVE-2026-42533: heap buffer overflow in the
mapdirective and regex matching (bsc#1271514). - CVE-2026-48142: heap buffer overread in the
ngx_http_charset_modulemodule (bsc#1268495). - Remote denial of service via the HTTP/2 bomb exploit (bsc#1267525).
Список пакетов
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
SUSE Linux Enterprise Server 15 SP4-LTSS
SUSE Linux Enterprise Server 15 SP5-LTSS
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP5
Ссылки
- Link for SUSE-SU-2026:3448-1
- E-Mail link for SUSE-SU-2026:3448-1
- SUSE Security Ratings
- SUSE Bug 1267525
- SUSE Bug 1268492
- SUSE Bug 1268495
- SUSE Bug 1271514
- SUSE CVE CVE-2026-42055 page
- SUSE CVE CVE-2026-42533 page
- SUSE CVE CVE-2026-48142 page
Описание
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules. This vulnerability exists when the proxy_http_version to 2 or grpc_pass directives are used to proxy HTTP/2 traffic, the ignore_invalid_headers directive is set to off, and the large_client_header_buffers directive size is larger than 2 megabytes. A remote, unauthenticated attacker, along with conditions beyond their control, could send large headers while creating an upstream request. This may cause a heap-based 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
Ссылки
- CVE-2026-42055
- SUSE Bug 1268492
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
Ссылки
- CVE-2026-42533
- SUSE Bug 1271514
Описание
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_charset_module module. When content is served or proxied through a location block with both source_charset utf-8; and a charset directive (for example, charset koi8-r;) configured, remote, unauthenticated attackers can send requests (in conjunction with conditions beyond their 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
Ссылки
- CVE-2026-48142
- SUSE Bug 1268495