2021-37676 | Google TensorFlow tf.raw_ops.SparseFillEmptyRows uninitialized pointer
|CVSS Meta Temp Score||Current Exploit Price (≈)||CTI Interest Score|
A vulnerability, which was classified as critical, was found in Google TensorFlow up to 2.3.3/2.4.2/2.5.0 (Artificial Intelligence Software). CWE is classifying the issue as CWE-824. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause undefined behavior via binding a reference to null pointer in `tf.raw_ops.SparseFillEmptyRows`. The shape inference [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/ops/sparse_ops.cc#L608-L634) does not validate that the input arguments are not empty tensors. We have patched the issue in GitHub commit 578e634b4f1c1c684d4b4294f9e5281b2133b3ed. 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.
The weakness was released 08/13/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2021-37676 since 07/29/2021. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn’t require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 08/18/2021).
Upgrading to version 2.3.4, 2.4.3, 2.5.1 or 2.6.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0
Status: Not defined
0-Day Time: 🔒
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