CVE-2020-15191

Undefined behavior in Tensorflow

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Tensorflow before versions 2.2.1 and 2.3.1, if a user passes an invalid argument to `dlpack.to_dlpack` the expected validations will cause variables to bind to `nullptr` while setting a `status` variable to the error condition. However, this `status` argument is not properly checked. Hence, code following these methods will bind references to null pointers. This is undefined behavior and reported as an error if compiling with `-fsanitize=null`. The issue is patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1, or 2.3.1.

En Tensorflow versiones anteriores a 2.2.1 y 2.3.1, si un usuario pasa un argumento no válido hacia "dlpack.to_dlpack", las comprobaciones previstas harán que las variables se unan a "nullptr" mientras se establece una variable "status" para la condición de error. Sin embargo, este argumento "status" no se comprueba correctamente. Por lo tanto, el código que sigue estos métodos vinculará referencias a punteros null. Este es un comportamiento indefinido y se reporta como un error si se compila con "-fsanitize=null". El problema es parcheado en el commit 22e07fb204386768e5bcbea563641ea11f96ceb8 y es publicado en TensorFlow versiones 2.2.1 o 2.3.1

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

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

2020-06-25 CVE Reserved
2020-09-25 CVE Published
2024-03-17 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation
CWE-252: Unchecked Return Value
CWE-476: NULL Pointer Dereference

CAPEC

References (4)

URL	Tag	Source
https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1	Third Party Advisory

URL	Date	SRC
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q8qj-fc9q-cphr	2024-08-04

URL	Date	SRC
https://github.com/tensorflow/tensorflow/commit/22e07fb204386768e5bcbea563641ea11f96ceb8	2021-11-18

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html	2021-11-18

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"				2.2.0 Search vendor "Google" for product "Tensorflow" and version "2.2.0"		-		Affected
Google Search vendor "Google"		Tensorflow Search vendor "Google" for product "Tensorflow"				2.3.0 Search vendor "Google" for product "Tensorflow" and version "2.3.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.2 Search vendor "Opensuse" for product "Leap" and version "15.2"		-		Affected