CVE-2020-15204: In eager mode, TensorFlow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1 does not set the session state. Hence, c

In eager mode (a way TensorFlow runs code immediately instead of building a computation graph first), versions before 1.15.4, 2.0.3, 2.1.2, 2.2.1, and 2.3.1 fail to set up session state properly. This causes a null pointer dereference (trying to use a pointer that points to nothing), which crashes the program with a segmentation fault (a memory access error).