At least 150 vendors are affected by the Amnesia:33 set of vulnerabilities, researchers say. The flaws are found in four (out of seven analyzed) TCP/IP stacks. Many of the issues stem from bad software development practices, such as an absence of basic input validation. Researchers recommend various coursees of action in protecting networks from the flaws, including disabling or blocking IPv6 traffic when it s not necessary; configuring devices to rely on internal DNS servers as much as possible.
Source: https://threatpost.com/amnesia33-tcp-ip-flaws-iot-devices/161928/