numpy: NULL pointer dereference in numpy.sort in in the PyArray_DescrNew() due to missing return-value validation

Null Pointer Dereference vulnerability exists in numpy.sort in NumPy &lt and 1.19 in the PyArrayDescrNew function due to missing return-value validation, which allows attackers to conduct DoS attacks by repetitively creating sort arrays. NOTE: While correct that validation is missing, an error ca...