Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Allwinnertech | Android Q Sdk | 1.0 |
| Allwinnertech | R818 | All versions |
References
- https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%Broken LinkThird Party Advisory
- https://vul.wangan.com/a/CNVD-2021-46928Third Party Advisory
- https://www.allwinnertech.com/index.php?c=product&a=index&id=92ProductVendor Advisory
- https://www.cnvd.org.cn/flaw/show/CNVD-2021-46928Third Party Advisory
- https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%Broken LinkThird Party Advisory
- https://vul.wangan.com/a/CNVD-2021-46928Third Party Advisory
- https://www.allwinnertech.com/index.php?c=product&a=index&id=92ProductVendor Advisory
- https://www.cnvd.org.cn/flaw/show/CNVD-2021-46928Third Party Advisory
FAQ
What is CVE-2021-38788?
CVE-2021-38788 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 application...
How severe is CVE-2021-38788?
CVE-2021-38788 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-38788?
Check the references section above for vendor advisories and patch information. Affected products include: Allwinnertech Android Q Sdk, Allwinnertech R818.