Multiple buffer overflows in OpenTTD before 1.1.3 allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via vectors related to (1) NAME, (2) PLYR, (3) CHTS, or (4) AIPL (aka AI config) chunk loading from a savegame.
http://www.securityfocus.com/bid/49439
http://www.debian.org/security/2012/dsa-2386
http://security.openttd.org/en/CVE-2011-3342
http://secunia.com/advisories/46075
http://openwall.com/lists/oss-security/2011/09/06/2
http://openwall.com/lists/oss-security/2011/09/02/4
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/066128.html