CVE-2021-39639 — MEDIUM (6.8)

Vulnerability Description

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 Score

6.8

MEDIUM

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	-

Related Weaknesses (CWE)

CWE-862

References

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

FAQ

What is CVE-2021-39639?

CVE-2021-39639 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 add...

How severe is CVE-2021-39639?

CVE-2021-39639 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-39639?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.