The uncompress_buffer function in src/server/simple_wml.cpp in Wesnoth before r33069 allows remote attackers to cause a denial of service via a large compressed WML document.

The read_game_map function in src/terrain_translation.cpp in Wesnoth before r32987 allows remote attackers to cause a denial of service (memory consumption and daemon hang) via a map with a large (1) width or (2) height.

Unspecified vulnerability in Wesnoth 1.2.x before 1.2.8, and 1.3.x before 1.3.12, allows attackers to cause a denial of service (hang) via a "faulty add-on" and possibly execute other commands via unknown vectors related to the turn_cmd option.