CVE-2021-38788

The Background service in Allwinner R818 SoC Android Q SDK V1.0 is used to manage background applications. Malicious apps can use the interface provided by the service to set the number of applications allowed to run in the background to 0 and add themselves to the whitelist, so that once other applications enter the background, they will be forcibly stopped by the system, causing a denial of service.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://www.allwinnertech.com/index.php?c=product&a=index&id=92	Product Vendor Advisory
https://vul.wangan.com/a/CNVD-2021-46928	Third Party Advisory
https://www.cnvd.org.cn/flaw/show/CNVD-2021-46928	Third Party Advisory
https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9Abackground%20service%20has%20EoP%20Vulnerability.md	Broken Link Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:allwinnertech:android_q_sdk:1.0:*:*:*:*:*:*:*

cpe:2.3:h:allwinnertech:r818:*:*:*:*:*:*:*:*

Information

Published : 2022-01-19 08:15

Updated : 2022-07-12 10:42

NVD link : CVE-2021-38788

Mitre link : CVE-2021-38788

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

allwinnertech

android_q_sdk
r818

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