Vulnerability Details : CVE-2021-38787
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).
Vulnerability category: OverflowDenial of service
Products affected by CVE-2021-38787
- cpe:2.3:a:allwinnertech:android_q_sdk:1.0:*:*:*:*:*:*:*When used together with: Allwinnertech » R818
Exploit prediction scoring system (EPSS) score for CVE-2021-38787
0.79%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38787
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-38787
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-38787
-
https://www.allwinnertech.com/index.php?c=product&a=index&id=92
R818Product;Vendor Advisory
-
https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.md
Page not found · GitHub · GitHubBroken Link;Third Party Advisory
-
https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171
Third Party Advisory
-
https://vul.wangan.com/a/CNVD-2021-49171
undefined_undefined-网安漏洞平台Third Party Advisory
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