CVE-2022-0669

Se ha encontrado un fallo en dpdk. Este fallo permite a un vhost-user master malicioso adjuntar un número inesperado de fds como datos auxiliares a los mensajes VHOST_USER_GET_INFLIGHT_FD / VHOST_USER_SET_INFLIGHT_FD que no son cerrados por el vhost-user slave. Al enviar dichos mensajes continuamente, el maestro vhost-user agota los fd disponibles en el proceso esclavo vhost-user, conllevando a una denegación de servicio

A flaw was found in dpdk, which allows a malicious primary vhost-user to attach an unexpected number of fds as ancillary data to VHOST_USER_GET_INFLIGHT_FD / VHOST_USER_SET_INFLIGHT_FD messages that are not closed by the secondary vhost-user. By sending such messages continuously, the primary vhost-user exhausts available fd in the vhost-user standby process, leading to a denial of service.

Wenxiang Qian discovered that DPDK incorrectly checked certain payloads. An attacker could use this issue to cause DPDK to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that DPDK incorrectly handled inflight type messages. An attacker could possibly use this issue to cause DPDK to consume resources, leading to a denial of service.