Vulnerability Description
TensorFlow is an open source platform for machine learning. In affected versions the code behind `tf.function` API can be made to deadlock when two `tf.function` decorated Python functions are mutually recursive. This occurs due to using a non-reentrant `Lock` Python object. Loading any model which contains mutually recursive functions is vulnerable. An attacker can cause denial of service by causing users to load such models and calling a recursive `tf.function`, although this is not a frequent scenario. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tensorflow | >= 2.4.0, < 2.4.4 |
Related Weaknesses (CWE)
References
- https://github.com/tensorflow/tensorflow/commit/afac8158d43691661ad083f6dd9e56f3PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-h67m-xg8f-fxcfThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/afac8158d43691661ad083f6dd9e56f3PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-h67m-xg8f-fxcfThird Party Advisory
FAQ
What is CVE-2021-41213?
CVE-2021-41213 is a vulnerability with a CVSS score of 5.5 (MEDIUM). TensorFlow is an open source platform for machine learning. In affected versions the code behind `tf.function` API can be made to deadlock when two `tf.function` decorated Python functions are mutuall...
How severe is CVE-2021-41213?
CVE-2021-41213 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41213?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow.