The HandleCrashedAircraft function in aircraft_cmd.cpp in OpenTTD 0.3.6 through 1.3.2 allows remote attackers to cause a denial of service (out-of-bounds read and crash) by crashing an aircraft outside of the map.
https://security.openttd.org/en/CVE-2013-6411
https://exchange.xforce.ibmcloud.com/vulnerabilities/89334
http://www.securityfocus.com/bid/64003
http://secunia.com/advisories/56218
http://secunia.com/advisories/55589
http://seclists.org/oss-sec/2013/q4/375
http://lists.opensuse.org/opensuse-updates/2013-12/msg00095.html