CVE-2019-5637 – Beckhoff TwinCAT Profinet Driver Divide-by-Zero Denial of Service

https://notcve.org/view.php?id=CVE-2019-5637

When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the device. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior). Cuando Beckhoff TwinCAT está configurado para usar el controlador Profinet, se puede llegar a una denegación de servicio del controlador enviando un paquete UDP con formato incorrecto al dispositivo. Este problema afecta a TwinCAT 2 versión 2304 (y anterior) y TwinCAT 3.1 versión 4204.0 (y anterior). • https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-007.pdf • CWE-369: Divide By Zero •