Debian Security Advisory 1386-1 – A problem has been discovered in the processing of chat messages. Overly long messages are truncated by the server to a fixed length, without paying attention to the multibyte characters. This leads to invalid UTF-8 on clients and causes an uncaught exception. Note that both wesnoth and the wesnoth server are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/60125/dsa-1386-1.txt
Source: https://packetstormsecurity.com/files/60125/Debian-Linux-Security-Advisory-1386-1.html