{"schemaVersion":3,"id":"CVE-2021-37649","aliases":["GHSA-6gv8-p3vj-pxvr","BIT-tensorflow-2021-37649","PYSEC-2021-271","PYSEC-2021-562","PYSEC-2021-760"],"status":"published","duplicateOf":null,"title":null,"description":"TensorFlow is an end-to-end open source platform for machine learning. The code for `tf.raw_ops.UncompressElement` can be made to trigger a null pointer dereference. The [implementation](https://github.com/tensorflow/tensorflow/blob/f24faa153ad31a4b51578f8181d3aaab77a1ddeb/tensorflow/core/kernels/data/experimental/compression_ops.cc#L50-L53) obtains a pointer to a `CompressedElement` from a `Variant` tensor and then proceeds to dereference it for decompressing. There is no check that the `Variant` tensor contained a `CompressedElement`, so the pointer is actually `nullptr`. We have patched the issue in GitHub commit 7bdf50bb4f5c54a4997c379092888546c97c3ebd. The fix will be included in TensorFlow 2.6.0. 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