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Vulnerability Details : CVE-2021-37657

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 all operations of type `tf.raw_ops.MatrixDiagV*`. The [implementation](https://github.com/tensorflow/tensorflow/blob/84d053187cb80d975ef2b9684d4b61981bca0c41/tensorflow/core/kernels/linalg/matrix_diag_op.cc) has incomplete validation that the value of `k` is a valid tensor. We have check that this value is either a scalar or a vector, but there is no check for the number of elements. If this is an empty tensor, then code that accesses the first element of the tensor is wrong. We have patched the issue in GitHub commit f2a673bd34f0d64b8e40a551ac78989d16daad09. 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.
Publish Date : 2021-08-12 Last Update Date : 2021-08-18
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- CVSS Scores & Vulnerability Types

CVSS Score
4.6
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 824

- Products Affected By CVE-2021-37657

# Product Type Vendor Product Version Update Edition Language
1 Application Google Tensorflow * * * * Version Details Vulnerabilities
2 Application Google Tensorflow 2.5.0 * * * Version Details Vulnerabilities
3 Application Google Tensorflow 2.6.0 RC0 * * Version Details Vulnerabilities
4 Application Google Tensorflow 2.6.0 RC1 * * Version Details Vulnerabilities
5 Application Google Tensorflow 2.6.0 RC2 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Google Tensorflow 5

- References For CVE-2021-37657

https://github.com/tensorflow/tensorflow/security/advisories/GHSA-5xwc-mrhx-5g3m CONFIRM
https://github.com/tensorflow/tensorflow/commit/f2a673bd34f0d64b8e40a551ac78989d16daad09

- Metasploit Modules Related To CVE-2021-37657

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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