CVE-2021-41202

Overflow/crash in `tf.range`

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

TensorFlow is an open source platform for machine learning. In affected versions while calculating the size of the output within the `tf.range` kernel, there is a conditional statement of type `int64 = condition ? int64 : double`. Due to C++ implicit conversion rules, both branches of the condition will be cast to `double` and the result would be truncated before the assignment. This result in overflows. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.

TensorFlow es una plataforma de código abierto para el aprendizaje automático. En las versiones afectadas, mientras se calcula el tamaño de la salida dentro del núcleo "tf.range", se presenta una sentencia condicional de tipo "int64 = condición ? int64 : double". Debido a las reglas de conversión implícitas de C++, ambas ramas de la condición se convertirán en "double" y el resultado se truncará antes de la asignación. Esto resulta en desbordamientos. La corrección será incluida en TensorFlow versión 2.7.0. También será incluida este commit en TensorFlow versión 2.6.1, TensorFlow versión 2.5.2, y TensorFlow versión 2.4.4, ya que estos también están afectados y todavía están en el rango admitido

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-15 CVE Reserved
2021-11-05 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-681: Incorrect Conversion between Numeric Types

CAPEC

References (5)

URL	Tag	Source
https://github.com/tensorflow/tensorflow/issues/46889	Issue Tracking
https://github.com/tensorflow/tensorflow/issues/46912	Issue Tracking
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-xrqm-fpgr-6hhx	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/tensorflow/tensorflow/commit/1b0e0ec27e7895b9985076eab32445026ae5ca94	2021-11-09
https://github.com/tensorflow/tensorflow/commit/6d94002a09711d297dbba90390d5482b76113899	2021-11-09

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Google Search vendor "Google"		Tensorflow Search vendor "Google" for product "Tensorflow"				>= 2.4.0 < 2.4.4 Search vendor "Google" for product "Tensorflow" and version " >= 2.4.0 < 2.4.4"		-		Affected
Google Search vendor "Google"		Tensorflow Search vendor "Google" for product "Tensorflow"				>= 2.5.0 < 2.5.2 Search vendor "Google" for product "Tensorflow" and version " >= 2.5.0 < 2.5.2"		-		Affected
Google Search vendor "Google"		Tensorflow Search vendor "Google" for product "Tensorflow"				>= 2.6.0 < 2.6.1 Search vendor "Google" for product "Tensorflow" and version " >= 2.6.0 < 2.6.1"		-		Affected
Google Search vendor "Google"		Tensorflow Search vendor "Google" for product "Tensorflow"				2.7.0 Search vendor "Google" for product "Tensorflow" and version "2.7.0"		rc0		Affected
Google Search vendor "Google"		Tensorflow Search vendor "Google" for product "Tensorflow"				2.7.0 Search vendor "Google" for product "Tensorflow" and version "2.7.0"		rc1		Affected