Vulnerability Description
TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger a denial of service via a `CHECK`-fail in `tf.raw_ops.CTCGreedyDecoder`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/1615440b17b364b875eb06f43d087381f1460a65/tensorflow/core/kernels/ctc_decoder_ops.cc#L37-L50) has a `CHECK_LT` inserted to validate some invariants. When this condition is false, the program aborts, instead of returning a valid error to the user. This abnormal termination can be weaponized in denial of service attacks. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tensorflow | < 2.1.4 |
Related Weaknesses (CWE)
References
- https://github.com/tensorflow/tensorflow/commit/ea3b43e98c32c97b35d52b4c66f91074PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-fphq-gw9m-ghrvExploitPatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/ea3b43e98c32c97b35d52b4c66f91074PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-fphq-gw9m-ghrvExploitPatchThird Party Advisory
FAQ
What is CVE-2021-29543?
CVE-2021-29543 is a vulnerability with a CVSS score of 2.5 (LOW). TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger a denial of service via a `CHECK`-fail in `tf.raw_ops.CTCGreedyDecoder`. This is because the implementati...
How severe is CVE-2021-29543?
CVE-2021-29543 has been rated LOW with a CVSS base score of 2.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29543?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow.