CVE-2017-0380

The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11, 0.3.1.x before 0.3.1.7, and 0.3.2.x before 0.3.2.1-alpha, when SafeLogging is disabled, allows attackers to obtain sensitive information by leveraging access to the log files of a hidden service, because uninitialized stack data is included in an error message about construction of an introduction point circuit.

The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11, 0.3.1.x before 0.3.1.7, and 0.3.2.x before 0.3.2.1-alpha, when SafeLogging is disabled, allows attackers to obtain sensitive information by leveraging access to the log files of a hidden service, because uninitialized stack data is included in an error message about construction of an introduction point circuit.

La función rend_service_intro_established en or/rendservice.c en versiones de Tor anteriores a la 0.2.8.15, versiones 0.2.9.x anteriores a la 0.2.9.12, versiones 0.3.0.x anteriores a la 0.3.0.11, versiones 0.3.1.x anteriores a la 0.3.1.7 y versiones 0.3.2.x anteriores a la 0.3.2.1-alpha, cuando se deshabilita SafeLogging, permite a los atacantes obtener información sensible mediante el acceso al archivo de registro de un servicio oculto. Esto se debe a que los datos de la pila sin inicializar se incluyen en un mensaje de error sobre el punto de entrada a la red.