CVE-2021-37636

Advisory

TensorFlow 2.3.4, 2.4.3, 2.5.1 and 2.6.0 include a fix for CVE-2021-37636: In affected versions the implementation of 'tf.raw_ops.SparseDenseCwiseDiv' is vulnerable to a division by 0 error. The implementation (https://github.com/tensorflow/tensorflow/blob/a1bc56203f21a5a4995311825ffaba7a670d7747/tensorflow/core/kernels/sparse_dense_binary_op_shared.cc#L56) uses a common class for all binary operations but fails to treat the division by 0 case separately. The Tensorflow team has patched the issue in GitHub commit d9204be9f49520cdaaeb2541d1dc5187b23f31d9.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

TensorFlow is an end-to-end open source platform for machine learning. In affected versions the implementation of `tf.raw_ops.SparseDenseCwiseDiv` is vulnerable to a division by 0 error. The [implementation](https://github.com/tensorflow/tensorflow/blob/a1bc56203f21a5a4995311825ffaba7a670d7747/tensorflow/core/kernels/sparse_dense_binary_op_shared.cc#L56) uses a common class for all binary operations but fails to treat the division by 0 case separately. We have patched the issue in GitHub commit d9204be9f49520cdaaeb2541d1dc5187b23f31d9. 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. See CVE-2021-37636.


CONFIRM:https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hp4c-x6r7-6555: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hp4c-x6r7-6555
MISC:https://github.com/tensorflow/tensorflow/commit/d9204be9f49520cdaaeb2541d1dc5187b23f31d9: https://github.com/tensorflow/tensorflow/commit/d9204be9f49520cdaaeb2541d1dc5187b23f31d9

Resources

• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hp4c-x6r7-6555
• https://github.com/tensorflow/tensorflow/commit/d9204be9f49520cdaaeb2541d1dc5187b23f31d9
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37636