TL;DR — Quick Summary

Review the essential security updates and bug fixes introduced in Nginx version 1.4.7, including a critical patch for a heap memory buffer overflow.

Note: This article was originally published in 2014. Some steps, commands, or software versions may have changed. Check the current General documentation for the latest information.

Changes with (https://nginx.org/ “Nginx”) 1.4.7

Below are the list of changes from the 1.4.6 release of NginX to version 1.4.7 This is provided as reference only and was obtained from: https://nginx.org/en/CHANGES. This update addresses a bug fix and a security issue. Because of the security issue we rate this update of high priority.

Changes with nginx 1.4.7                                         18 Mar 2014

    *) Security: a heap memory buffer overflow might occur in a worker
       process while handling a specially crafted request by
       ngx_http_spdy_module, potentially resulting in arbitrary code
       execution (CVE-2014-0133).
       Thanks to Lucas Molas, researcher at Programa STIC, Fundación Dr.
       Manuel Sadosky, Buenos Aires, Argentina.

    *) Bugfix: in the "fastcgi_next_upstream" directive.
       Thanks to Lucas Molas.