{"schema_version":"1.7.5","id":"GHSA-q4qf-3fc6-8x34","published":"2020-09-25T18:28:43Z","modified":"2026-03-13T22:15:11.392992Z","aliases":["BIT-tensorflow-2020-15207","CVE-2020-15207","PYSEC-2020-130","PYSEC-2020-287","PYSEC-2020-322"],"related":["CVE-2020-15207"],"summary":"Segfault and data corruption in tensorflow-lite","details":"### Impact\nTo mimic Python's indexing with negative values, TFLite uses `ResolveAxis` to convert negative values to positive indices. However, the only check that the converted index is now valid is only present in debug builds:\nhttps://github.com/tensorflow/tensorflow/blob/0e68f4d3295eb0281a517c3662f6698992b7b2cf/tensorflow/lite/kernels/internal/reference/reduce.h#L68-L72\n\nIf the `DCHECK` does not trigger, then code execution moves ahead with a negative index. This, in turn, results in accessing data out of bounds which results in segfaults and/or data corruption.\n### Patches\nWe have patched the issue in 2d88f470dea2671b430884260f3626b1fe99830a and will release patch releases for all versions between 1.15 and 2.3.\n\nWe recommend users to upgrade to TensorFlow 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.\n\n### Attribution\nThis vulnerability has been reported by members of the Aivul Team from Qihoo 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