Nginx mainline version 1.17.3 released: security fixes

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Nginx is a lightweight web server/reverse proxy server and email (IMAP/POP3) proxy server, distributed under a BSD-like protocol, available on UNIX, GNU/Linux, Run on operating systems such as BSD, Mac OS X, Solaris, and Microsoft Windows.

Basic HTTP server features

Other HTTP server features

Nginx mainline version 1.17.3 has been released.

*) Security: when using HTTP/2 a client might cause excessive memory consumption and CPU usage (CVE-2019-9511, CVE-2019-9513, CVE-2019-9516).

*) Bugfix: “zero size buf” alerts might appear in logs when using gzipping; the bug had appeared in 1.17.2.

*) Bugfix: a segmentation fault might occur in a worker process if the “resolver” directive was used in SMTP proxy.