CVE-2021-0321: Medium severity Google Android vulnerability
In enforceDumpPermissionForPackage of ActivityManagerService.java, there is a possible way to determine if a package is installed 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 11:2021-01-01
Event History
Frequently Asked Questions
What is CVE-2021-0321?
CVE-2021-0321 is a vulnerability in the enforceDumpPermissionForPackage function of ActivityManagerService.java in Android 11.0 that allows an attacker to determine if a package is installed and potentially disclose local information without additional execution privileges.
How severe is CVE-2021-0321?
CVE-2021-0321 has a severity rating of 5.5 (High).
How can CVE-2021-0321 be exploited?
CVE-2021-0321 can be exploited by an attacker using side channel information to determine if a package is installed, leading to potential local information disclosure.
What is the affected software for CVE-2021-0321?
CVE-2021-0321 affects Google Android 11.0.
How can I fix CVE-2021-0321?
To fix CVE-2021-0321, users should apply the necessary security updates provided by Google for Android 11.0.