CVE-2021-38787 Information

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 Vector

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

Reference

https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171 https://www.allwinnertech.com/index.php?c=product&a=index&id=92 https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.md https://vul.wangan.com/a/CNVD-2021-49171

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5