NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpslice_module module. When the slice directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX worker process, leading to limited disclosure of memory or a restart.
Impact: This vulnerability may allow remote, unauthenticated attackers to have limited control to disclose memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: The ngxhttpslicemodule module is not enabled by default; it's enabled with the --with-httpslice_module configuration parameter.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
{
"cpes": [
"cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*"
],
"severity": "High"
}