Vulnerability · Published Jan 11, 2021 · Assigned by google_android
CVE-2021-0320
Medium 4.7
In plain English
A medium-severity security flaw in Android. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Severity (CVSS NVD)4.7Medium
Exploit odds (30 days)0.1%top 98.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
References
- https://source.android.com/security/bulletin/2021-01-01 x_refsource_CONFIRM