Impact

When ctx->step_containter() is a null ptr, the Lookup function will be executed with a null pointer.

import tensorflow as tf
tf.raw_ops.TensorArrayConcatV2(handle=['a', 'b'], flow_in = 0.1, dtype=tf.int32, element_shape_except0=1)

Patches

We have patched the issue in GitHub commit 239139d2ae6a81ae9ba499ad78b56d9b2931538a.

The fix will be included in TensorFlow 2.12.0. We will also cherrypick this commit on TensorFlow 2.11.1

For more information

Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.

Attribution

This vulnerability has been reported by Yu Tian

References

• GHSA-64jg-wjww-7c5w
• tensorflow/tensorflow@239139d
• https://nvd.nist.gov/vuln/detail/CVE-2023-25663