CVE-2021-0320

Description

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.01%
Vendor Advisory android.com
Affected: n/a Android
Published at:
Updated at:

References

Link Tags
https://source.android.com/security/bulletin/2021-01-01 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-0320?
CVE-2021-0320 has been scored as a medium severity vulnerability.
How to fix CVE-2021-0320?
To fix CVE-2021-0320, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-0320 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-0320 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-0320?
CVE-2021-0320 affects n/a Android.
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