CVE-2020-26555

Un emparejamiento de código PIN BR/EDR heredado de Bluetooth en Bluetooth Core Specification versiones 1.0B hasta 5.2, puede permitir a un dispositivo cercano no autenticado falsificar el BD_ADDR del dispositivo peer para completar el emparejamiento sin conocer el PIN

A vulnerability was found in Linux Kernel, where Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack. When an attacker connects to a victim device using the address of the device and the victim initiates a Pairing, the attacker can reflect the encrypted nonce even without knowledge of the key.

Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. It was discovered that the aufs file system in the Linux kernel did not properly restrict mount namespaces, when mounted with the non-default allow_userns option set. A local attacker could use this to gain administrative privileges.