Vulnerability Details CVE-2021-37667
TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause undefined behavior via binding a reference to null pointer in `tf.raw_ops.UnicodeEncode`. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/unicode_ops.cc#L533-L539) reads the first dimension of the `input_splits` tensor before validating that this tensor is not empty. We have patched the issue in GitHub commit 2e0ee46f1a47675152d3d865797a18358881d7a6. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 0.9%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 4.6
References
- https://github.com/tensorflow/tensorflow/commit/2e0ee46f1a47675152d3d865797a18358881d7a6
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-w74j-v8xh-3w5h
- https://github.com/tensorflow/tensorflow/commit/2e0ee46f1a47675152d3d865797a18358881d7a6
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-w74j-v8xh-3w5h
Products affected by CVE-2021-37667
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cpe:2.3:a:google:tensorflow:2.3.0
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cpe:2.3:a:google:tensorflow:2.3.1
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cpe:2.3:a:google:tensorflow:2.3.2
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cpe:2.3:a:google:tensorflow:2.3.3
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cpe:2.3:a:google:tensorflow:2.4.0
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cpe:2.3:a:google:tensorflow:2.4.1
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cpe:2.3:a:google:tensorflow:2.4.2
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cpe:2.3:a:google:tensorflow:2.5.0
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cpe:2.3:a:google:tensorflow:2.6.0