CVE-2021-39639 - Incorrect Default Permissions

Severity

68%

Complexity

9%

Confidentiality

98%

In TBD of fvp.c, there is a possible way to glitch CPU behavior due to a missing permission check. This could lead to local escalation of privilege with physical access to device internals with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-198291476References: N/A

CVSS 3.1 Base Score 6.8. CVSS Attack Vector: physical. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.2. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C).

Overview

First reported 3 years ago

2021-12-15 19:15:00

Last updated 3 years ago

2021-12-20 18:30:00

Affected Software

Google Android Operating System

References

https://source.android.com/security/bulletin/pixel/2021-12-01

https://source.android.com/security/bulletin/pixel/2021-12-01

Patch, Vendor Advisory

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