The readgamemap function in src/terraintranslation.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.
The uncompressbuffer function in src/server/simplewml.cpp in Wesnoth before r33069 allows remote attackers to cause a denial of service via a large compressed WML document.
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 turncmd option.
Directory traversal vulnerability in the WML engine preprocessor for Wesnoth 1.2.x before 1.2.8, and 1.3.x before 1.3.12, allows remote attackers to read arbitrary files via ".." sequences in unknown vectors.
Description of problem:
From Novell bugzilla (see URL):
A malicious user could send a long chat message with multibyte characters, the server would truncate the message on a fixed length, without paying attention to the multibyte characters. This led to invalid utf-8 on the client and an uncaught exception was thrown. Note both wesnoth and the wesnoth server are affected.
Additional information:
I am aware of no further details, nor the fix.