CVE-2021-29552: TensorFlow is an end-to-end open source platform for machine learning. An attacker can cause a denial of service by cont

TensorFlow, an open-source machine learning platform, has a vulnerability where an attacker can crash the program by passing an empty tensor (a multi-dimensional array of numbers) as the `num_segments` argument to the `UnsortedSegmentJoin` operation. The code assumes this input will always be a valid scalar (a single number), so when it's empty, a safety check fails and terminates the process, causing a denial of service (making the system unavailable).