freeciv 2.2 before 2.2.1 and 2.3 before 2.3.0 allows attackers to read arbitrary files or execute arbitrary commands via a scenario that contains Lua functionality, related to the (1) os, (2) io, (3) package, (4) dofile, (5) loadfile, (6) loadlib, (7) module, and (8) require modules or functions.
http://www.openwall.com/lists/oss-security/2010/06/24/5
http://www.openwall.com/lists/oss-security/2010/06/09/4
http://www.mandriva.com/security/advisories?name=MDVSA-2010:205
http://packetstormsecurity.com/files/163311/Android-2.0-FreeCIV-Arbitrary-Code-Execution.html