CVE-2021-37638

Advisory

TensorFlow 2.3.4, 2.4.3, 2.5.1 and 2.6.0 include a fix for CVE-2021-37638: Sending invalid argument for 'row_partition_types' of 'tf.raw_ops.RaggedTensorToTensor' API results in a null pointer dereference and undefined behavior. The implementation (https://github.com/tensorflow/tensorflow/blob/47a06f40411a69c99f381495f490536972152ac0/tensorflow/core/kernels/ragged_tensor_to_tensor_op.cc#L328) accesses the first element of a user supplied list of values without validating that the provided list is not empty. The Tensorflow team has patched the issue in GitHub commit 301ae88b331d37a2a16159b65b255f4f9eb39314.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

TensorFlow is an end-to-end open source platform for machine learning. Sending invalid argument for `row_partition_types` of `tf.raw_ops.RaggedTensorToTensor` API results in a null pointer dereference and undefined behavior. The [implementation](https://github.com/tensorflow/tensorflow/blob/47a06f40411a69c99f381495f490536972152ac0/tensorflow/core/kernels/ragged_tensor_to_tensor_op.cc#L328) accesses the first element of a user supplied list of values without validating that the provided list is not empty. We have patched the issue in GitHub commit 301ae88b331d37a2a16159b65b255f4f9eb39314. 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-2021-37638.


CONFIRM:https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hwr7-8gxx-fj5p: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hwr7-8gxx-fj5p
MISC:https://github.com/tensorflow/tensorflow/commit/301ae88b331d37a2a16159b65b255f4f9eb39314: https://github.com/tensorflow/tensorflow/commit/301ae88b331d37a2a16159b65b255f4f9eb39314

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37638
• https://github.com/tensorflow/tensorflow/commit/301ae88b331d37a2a16159b65b255f4f9eb39314
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hwr7-8gxx-fj5p