Buffer overflow in sethdlc.c in the Asterisk Zaptel 1.4.5.1 might allow local users to gain privileges via a long device name (interface name) in the ifr_name field. NOTE: the vendor disputes this issue, stating that the application requires root access, so privilege boundaries are not crossed
https://exchange.xforce.ibmcloud.com/vulnerabilities/37335
http://www.securitytracker.com/id?1018885
http://www.securityfocus.com/bid/26160
http://www.securityfocus.com/archive/1/483481/100/0/threaded
http://www.securityfocus.com/archive/1/482597/100/0/threaded
http://www.eleytt.com/advisories/eleytt_ZAPTEL.pdf