CVE-2021-0320

low-risk
Published 2021-01-11

In is_device_locked and set_device_locked of keystore_keymaster_enforcement.h, there is a possible bypass of lockscreen requirements for keyguard bound keys due to a race condition. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-10, Android-11; Android ID: A-169933423.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (2)

Affected Vendors

Google

References (2)

Patch https://source.android.com/security/bulletin/2021-01-01
Patch https://source.android.com/security/bulletin/2021-01-01
19
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 7/34 · Low