High severity · published Aug 12, 2021
CVE-2021-37638
TensorFlow is an end-to-end open source platform for machine learning
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TE
Tensorflow · Google
2.3.0 before 2.3.4; 2.4.0 before 2.4.3; 2.5.0; 2.6.0; 2.6.0; 2.6.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-37638
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-37638
Patch
https://github.com/tensorflow/tensorflow/commit/301ae88b331d37a2a16159b65b255f4f9eb39314
Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hwr7-8gxx-fj5p
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