CVE-2020-26271

Published: Dic 10, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-0218 Aliases: GHSA-q263-fvxm-m5mw, PYSEC-2020-302
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 4,4
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: low
LOW 2,1
Access Vector: local
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: none
Availability: none

Description

AI Translation Available

In affected versions of TensorFlow under certain cases, loading a saved model can result in accessing uninitialized memory while building the computation graph. The MakeEdge function creates an edge between one output tensor of the src node (given by output_index) and the input slot of the dst node (given by input_index). This is only possible if the types of the tensors on both sides coincide, so the function begins by obtaining the corresponding DataType values and comparing these for equality. However, there is no check that the indices point to inside of the arrays they index into. Thus, this can result in accessing data out of bounds of the corresponding heap allocated arrays. In most scenarios, this can manifest as unitialized data access, but if the index points far away from the boundaries of the arrays this can be used to leak addresses from the library. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0002
Percentile
0,0th
Updated

EPSS Score Trend (Last 90 Days)

125

Out-of-bounds Read

Draft
Common Consequences
Security Scopes Affected:
Confidentiality Availability Other
Potential Impacts:
Read Memory Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Varies By Context
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Technologies: ICS/OT
View CWE Details
908

Use of Uninitialized Resource

Incomplete
Common Consequences
Security Scopes Affected:
Confidentiality Availability
Potential Impacts:
Read Memory Read Application Data Dos: Crash, Exit, Or Restart
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Tensorflow by Google

Version Range Affected
From 2.1.0 (inclusive)
To 2.1.3 (exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tensorflow by Google

Version Range Affected
From 2.2.0 (inclusive)
To 2.2.2 (exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tensorflow by Google

Version Range Affected
From 2.0.0 (inclusive)
To 2.0.4 (exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tensorflow by Google

Version Range Affected
To 1.15.5 (exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Tensorflow by Google

Version Range Affected
From 2.3.0 (inclusive)
To 2.3.2 (exclusive)
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/tensorflow/tensorflow/commit/0cc38aaa4064fd9e79101994ce9872c…
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q263-fvxm-m5mw
https://github.com/tensorflow/tensorflow/commit/0cc38aaa4064fd9e79101994ce9872c…
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q263-fvxm-m5mw