CVEvulnerability
CVE-2021-38787
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-01-19
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-190
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).
Affected configurations
• allwinnertech android q sdk 1.0
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.md Broken Link, Third Party Advisory
- https://vul.wangan.com/a/CNVD-2021-49171 Third Party Advisory
- https://www.allwinnertech.com/index.php?c=product&a=index&id=92 Product, Vendor Advisory
- https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171 Third Party Advisory
- https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.md Broken Link, Third Party Advisory
- https://vul.wangan.com/a/CNVD-2021-49171 Third Party Advisory
- https://www.allwinnertech.com/index.php?c=product&a=index&id=92 Product, Vendor Advisory
- https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171 Third Party Advisory