Nginx Security Vulnerabilities - Multiple Flaws Fixed
« on: November 12, 2018, 04:08:56 PM »
           Product: Nginx
        CVE Number: CVE-2018-16843, CVE-2018-16844, CVE-2018-16845
            Impact: Low / Medium
              Date: 2018-11-10

Product Description:

nginx [engine x] is an HTTP and reverse proxy server, a mail proxy server, and a generic TCP/UDP proxy server, originally written by Igor Sysoev. For a long time, it has been running on many heavily loaded Russian sites including Yandex, Mail.Ru, VK, and Rambler. According to Netcraft, nginx served or proxied 25.28% busiest sites in October 2018.

Vulnerability Description:

Two security issues were identified in nginx HTTP/2 implementation, which might cause excessive memory consumption (CVE-2018-16843) and CPU usage (CVE-2018-16844).

A security issue was identified in the ngx_http_mp4_module, which might allow an attacker to cause infinite loop in a worker process, cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted mp4 file (CVE-2018-16845).