CVE-2021-37625

Skytable is an open source NoSQL database. In versions prior to 0.6.4 an incorrect check of return value of the accept function in the run-loop for a TCP socket/TLS socket/TCP+TLS multi-socket causes an early exit from the run loop that should continue infinitely unless terminated by a local user, effectively causing the whole database server to shut down. This has severe impact and can be used to easily cause DoS attacks without the need to use much bandwidth. The attack vectors include using an incomplete TLS connection for example by not providing the certificate for the connection and using a specially crafted TCP packet that triggers the application layer backoff algorithm.

Skytable is an open source NoSQL database. In versions prior to 0.6.4 an incorrect check of return value of the accept function in the run-loop for a TCP socket/TLS socket/TCP+TLS multi-socket causes an early exit from the run loop that should continue infinitely unless terminated by a local user, effectively causing the whole database server to shut down. This has severe impact and can be used to easily cause DoS attacks without the need to use much bandwidth. The attack vectors include using an incomplete TLS connection for example by not providing the certificate for the connection and using a specially crafted TCP packet that triggers the application layer backoff algorithm.

Skytable es una base de datos NoSQL de código abierto. En versiones anteriores a 0.6.4, una comprobación incorrecta del valor de retorno de la función accept en el bucle de ejecución para un socket TCP/socket TLS/multisocket TCP+TLS causa una salida anticipada del bucle de ejecución que debería continuar infinitamente a menos que sea terminado por un usuario local, causando efectivamente el cierre de todo el servidor de base de datos. Esto presenta un impacto severo y puede ser usado para causar fácilmente ataques DoS sin necesidad de usar mucho ancho de banda. Los vectores de ataque incluyen el uso de una conexión TLS incompleta, por ejemplo, no proporcionando el certificado para la conexión, y usando de un paquete TCP especialmente diseñado que desencadena el algoritmo de backoff de la capa de aplicación