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).

CVSS v3.0 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171	Third Party Advisory
https://www.allwinnertech.com/index.php?c=product&a=index&id=92	Product Vendor 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

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:allwinnertech:android_q_sdk:1.0:*:*:*:*:*:*:*

cpe:2.3:h:allwinnertech:r818:*:*:*:*:*:*:*:*

Information

Published : 2022-01-19 05:15

Updated : 2022-01-26 09:32

NVD link : CVE-2021-38787

Mitre link : CVE-2021-38787

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

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Products Affected

allwinnertech

android_q_sdk
r818

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