CVE-2021-1013: Medium severity Google Android vulnerability
In checkExistsAndEnforceCannotModifyImmutablyRestrictedPermission of PermissionManagerService.java, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
android/platform/frameworks/baseto a version that resolves this vulnerability.Fixed in 12:2021-12-01
Event History
Frequently Asked Questions
Who can exploit this issue?
A local attacker with low privileges can exploit it. No user interaction or additional execution privileges are required.
What information could be exposed?
The issue can allow an app to determine whether another app is installed even when it does not have query permissions. It is an information-disclosure issue and does not describe integrity or availability impact.
Which Android version is identified as affected?
The provided data identifies Android 12 as affected.