os/unix/ngx_files.c in nginx before 1.10.1 and 1.11.x before 1.11.1 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a crafted request, involving writing a client request body to a temporary file. (CVE-2016-4450)
Impact
A remote attacker may be able to cause a denial-of-service (DoS) attack via a crafted request.