Tenda i29 spdtstConfigAndStart method buffer overflow vulnerability

The Tenda i29 is a wireless router from the Chinese company Tenda. The Tenda i29 suffers from a buffer overflow vulnerability that originates from the ip parameter of the spdtstConfigAndStart method failing to properly validate the length and size of the input data, which can be exploited by a remote attacker to execute arbitrary code on the system or cause a denial of service attack.