Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2021-38788
- cpe:2.3:a:allwinnertech:android_q_sdk:1.0:*:*:*:*:*:*:*When used together with: Allwinnertech » R818
Exploit prediction scoring system (EPSS) score for CVE-2021-38788
0.40%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38788
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
References for CVE-2021-38788
-
https://www.allwinnertech.com/index.php?c=product&a=index&id=92
R818Product;Vendor 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
MY_CVE_CREDIT/Allwinner R818 SoC：background service has EoP Vulnerability.md at master · pokerfacett/MY_CVE_CREDIT · GitHubBroken Link;Third Party Advisory
-
https://vul.wangan.com/a/CNVD-2021-46928
undefined_undefined-网安漏洞平台Third Party Advisory
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