5.5
MEDIUM
CVE-2021-37670
TensorFlow Out-of-Bounds Read in UpperBound
Description

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can read from outside of bounds of heap allocated data by sending specially crafted illegal arguments to `tf.raw_ops.UpperBound`. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/searchsorted_op.cc#L85-L104) does not validate the rank of `sorted_input` argument. A similar issue occurs in `tf.raw_ops.LowerBound`. We have patched the issue in GitHub commit 42459e4273c2e47a3232cc16c4f4fff3b3a35c38. 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.

INFO

Published Date :

Aug. 12, 2021, 11:15 p.m.

Last Modified :

Aug. 19, 2021, 2:28 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-37670 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Google tensorflow
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-37670.

URL Resource
https://github.com/tensorflow/tensorflow/commit/42459e4273c2e47a3232cc16c4f4fff3b3a35c38 Patch Third Party Advisory
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9697-98pf-4rw7 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-37670 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-37670 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Aug. 19, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://github.com/tensorflow/tensorflow/commit/42459e4273c2e47a3232cc16c4f4fff3b3a35c38 No Types Assigned https://github.com/tensorflow/tensorflow/commit/42459e4273c2e47a3232cc16c4f4fff3b3a35c38 Patch, Third Party Advisory
    Changed Reference Type https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9697-98pf-4rw7 No Types Assigned https://github.com/tensorflow/tensorflow/security/advisories/GHSA-9697-98pf-4rw7 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* versions from (including) 2.3.0 up to (excluding) 2.3.4 *cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* versions from (including) 2.4.0 up to (excluding) 2.4.3 *cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:* *cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:* *cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:* *cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 17, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tensorflow:tensorflow:*:*:*:*:*:*:*:* versions from (including) 2.5.0 from (including) 2.5.1 OR *cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* versions from (including) 2.5.0 from (including) 2.5.1
  • CPE Deprecation Remap by [email protected]

    Aug. 17, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tensorflow:tensorflow:*:*:*:*:*:*:*:* versions from (including) 2.4.0 from (including) 2.4.3 OR *cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* versions from (including) 2.4.0 from (including) 2.4.3
  • CPE Deprecation Remap by [email protected]

    Aug. 17, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tensorflow:tensorflow:*:*:*:*:*:*:*:* versions from (including) 2.3.0 from (including) 2.3.4 OR *cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* versions from (including) 2.3.0 from (including) 2.3.4
  • CPE Deprecation Remap by [email protected]

    Aug. 17, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tensorflow:tensorflow:2.6.0:rc0:*:*:*:*:*:* OR *cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 17, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tensorflow:tensorflow:2.6.0:rc1:*:*:*:*:*:* OR *cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 17, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:tensorflow:tensorflow:2.6.0:rc2:*:*:*:*:*:* OR *cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-37670 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-37670 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.10264

percentile

CVSS31 - Vulnerability Scoring System
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