CVE-2020-15193

Memory corruption in Tensorflow

Severity Score

7.1

*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, the implementation of `dlpack.to_dlpack` can be made to use uninitialized memory resulting in further memory corruption. This is because the pybind11 glue code assumes that the argument is a tensor. However, there is nothing stopping users from passing in a Python object instead of a tensor. The uninitialized memory address is due to a `reinterpret_cast` Since the `PyObject` is a Python object, not a TensorFlow Tensor, the cast to `EagerTensor` fails. 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, la implementación de "dlpack.to_dlpack" puede ser realizada para usar la memoria no inicializada, lo que resulta en una mayor corrupción de la memoria. Esto es debido a que el código adhesivo pybind11 asume que el argumento es un tensor. Sin embargo, no existe nada que impida que los usuarios pasen un objeto Python en lugar de un tensor. La dirección de memoria no inicializada es debido a un "reinterpret_cast" Dado que el "PyObject" es un objeto de Python, no un Tensor de TensorFlow, la conversión a "EagerTensor" presenta un fallo. 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

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

Partial

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
2023-03-07 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-908: Use of Uninitialized Resource

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-rjjg-hgv6-h69v	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