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Vulnerability Details : CVE-2021-37655

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can trigger a read from outside of bounds of heap allocated data by sending invalid arguments to `tf.raw_ops.ResourceScatterUpdate`. The [implementation](https://github.com/tensorflow/tensorflow/blob/f24faa153ad31a4b51578f8181d3aaab77a1ddeb/tensorflow/core/kernels/resource_variable_ops.cc#L919-L923) has an incomplete validation of the relationship between the shapes of `indices` and `updates`: instead of checking that the shape of `indices` is a prefix of the shape of `updates` (so that broadcasting can happen), code only checks that the number of elements in these two tensors are in a divisibility relationship. We have patched the issue in GitHub commit 01cff3f986259d661103412a20745928c727326f. 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 125

- Products Affected By CVE-2021-37655

# 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-2021-37655

https://github.com/tensorflow/tensorflow/security/advisories/GHSA-7fvx-3jfc-2cpc CONFIRM
https://github.com/tensorflow/tensorflow/commit/01cff3f986259d661103412a20745928c727326f

- Metasploit Modules Related To CVE-2021-37655

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


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