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PYSEC-2021-253

Details

TensorFlow is an end-to-end open source platform for machine learning. The implementation of TrySimplify(https://github.com/tensorflow/tensorflow/blob/c22d88d6ff33031aa113e48aa3fc9aa74ed79595/tensorflow/core/grappler/optimizers/arithmetic_optimizer.cc#L390-L401) has undefined behavior due to dereferencing a null pointer in corner cases that result in optimizing a node with no inputs. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI / tensorflow

Introduced in: 0 Fixed in: e6340f0665d53716ef3197ada88936c2a5f7a2d3

Fix pip install --upgrade 'tensorflow>=e6340f0665d53716ef3197ada88936c2a5f7a2d3'

References

https://github.com/tensorflow/tensorflow/security/advisories/GHSA-4hvv-7x94-7vq8 [ADVISORY]
https://github.com/tensorflow/tensorflow/commit/e6340f0665d53716ef3197ada88936c2a5f7a2d3 [FIX]