CVE-2020-7460

In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.

In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.

En FreeBSD versiones 12.1-ESTABLE anteriores a r363918, versiones 12.1-RELEASE anteriores a p8, versiones 11.4-ESTABLE anteriores a r363919, versiones 11.4-RELEASE anteriores a p2 y versiones 11.3-RELEASE anteriores a p12, la llamada al sistema sendmsg en el subsistema compat32 en plataformas de 64 bits presenta una vulnerabilidad de tipo time-of-check to time-of-use permitiendo a un programa de espacio de usuario malicioso modificar encabezados de mensajes de control después de que fueron comprobados