CVE-2021-39656

Published: Dic 15, 2021 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2021-26013 Aliases: GSD-2021-39656
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,7
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: high
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
MEDIUM 4,6
Source: [email protected]
Access Vector: local
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

In __configfs_open_file of file.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174049066References: Upstream kernel

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 91 Days)

416

Use After Free

Stable
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Confidentiality
Potential Impacts:
Modify Memory Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Likelihood of Exploit: High
View CWE Details
667

Improper Locking

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu)
Applicable Platforms
All platforms may be affected
View CWE Details
Operating System

Android by Google

Product Information
Vendor Google
Product Android
Version -
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://source.android.com/security/bulletin/pixel/2021-12-…
Patch Vendor Advisory
https://source.android.com/security/bulletin/pixel/2021-12-01
https://source.android.com/security/bulletin/pixel/2021-12-…
Patch Vendor Advisory
https://source.android.com/security/bulletin/pixel/2021-12-01