[3.5] docker: insecure opening of file-descriptor allows privilege escalation (CVE-2016-9962)
RunC allowed additional container processes via `runc exec` to be ptraced by the pid 1 of the container.
This allows the main processes of the container, if running as root, to gain access to file-descriptors of these new
processes during the initialization and can lead to container escapes or modification of runC state before the process is fully placed inside the container.
Fixed In Version:¶