Heap-based buffer overflow in the samp_send function in nuauth/sasl.c in NuFW before 2.2.7 allows remote attackers to cause a denial of service via unspecified input on which base64 encoding is performed. NOTE: some of these details are obtained from third party information.
https://exchange.xforce.ibmcloud.com/vulnerabilities/38153
http://www.securityfocus.com/bid/26251
http://www.nufw.org/+NuFW-2-2-7%2C207+.html