CVE-2021-38787 — HIGH (7.5)

Vulnerability Description

There is an integer overflow in the ION driver "/dev/ion" of Allwinner R818 SoC Android Q SDK V1.0 that could use the ioctl cmd "COMPAT_ION_IOC_SUNXI_FLUSH_RANGE" to cause a system crash (denial of service).

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Allwinnertech	Android Q Sdk	1.0
Allwinnertech	R818	All versions

Related Weaknesses (CWE)

CWE-190

References

https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%Broken LinkThird Party Advisory
https://vul.wangan.com/a/CNVD-2021-49171Third Party Advisory
https://www.allwinnertech.com/index.php?c=product&a=index&id=92ProductVendor Advisory
https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171Third Party Advisory
https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%Broken LinkThird Party Advisory
https://vul.wangan.com/a/CNVD-2021-49171Third Party Advisory
https://www.allwinnertech.com/index.php?c=product&a=index&id=92ProductVendor Advisory
https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171Third Party Advisory

FAQ

What is CVE-2021-38787?

CVE-2021-38787 is a vulnerability with a CVSS score of 7.5 (HIGH). There is an integer overflow in the ION driver "/dev/ion" of Allwinner R818 SoC Android Q SDK V1.0 that could use the ioctl cmd "COMPAT_ION_IOC_SUNXI_FLUSH_RANGE" to cause a system crash (denial of se...

How severe is CVE-2021-38787?

CVE-2021-38787 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-2021-38787?

Check the references section above for vendor advisories and patch information. Affected products include: Allwinnertech Android Q Sdk, Allwinnertech R818.