nginx 0.7.64 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.
https://github.com/talmesilati/nginx-drop-in-rebuild
https://github.com/addisonburkett/cve_query_module
https://euvd.enisa.europa.eu/vulnerability/EUVD-2009-4454
http://www.ush.it/team/ush/hack_httpd_escape/adv.txt
http://www.securityfocus.com/bid/37711
http://www.securityfocus.com/archive/1/508830/100/0/threaded