CVE Vulnerability

CVE-2021-39656

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

4.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

6.7 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://source.android.com/security/bulletin/pixel/2021-12-01 Patch Vendor Advisory
Configurations

Configuration 1

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
Information

Published : 2021-12-15 07:15

Updated : 2021-12-20 10:16

NVD link : CVE-2021-39656

Mitre link : CVE-2021-39656

Products Affected
No products.
CWE
CWE-416

CWE-667