Format string vulnerability in the safe_bprintf function in acesrc/acebot_cmds.c in Alien Arena 2007 6.10 and earlier allows remote attackers to cause a denial of service (daemon crash) via format string specifiers in a nickname.
https://exchange.xforce.ibmcloud.com/vulnerabilities/36463
http://www.vupen.com/english/advisories/2007/3169
http://www.securityfocus.com/archive/1/478628/100/0/threaded
http://www.quakesrc.org/forums/viewtopic.php?t=6843&start=1
http://securityreason.com/securityalert/3105
http://secunia.com/advisories/26819
http://archives.neohapsis.com/archives/fulldisclosure/2007-09/0049.html