Buffer overflow in the xmlrpc_char_encode function in modules/transport/xmlrpc/xmlrpclib.c in Atheme before 7.2.7 allows remote attackers to cause a denial of service via vectors related to XMLRPC response encoding.
Debian Linux Security Advisory 3586-1 - It was discovered that a buffer overflow in the XMLRPC response encoding code of the Atheme IRC services may result in denial of service.