Vulnerability · Published Jan 19, 2022 · Assigned by mitre

CVE-2021-38787

High 7.5

In plain English

A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities).

Severity (CVSS NVD)7.5High

Exploit odds (30 days)1.9%top 19.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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 products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

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