CVE-2021-39779 Missing authorization in Android
A missing permission check in Android's Telecom Service allows local attackers to disclose call state information without user interaction or additional privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-39779?
CVE-2021-39779 is a medium-severity missing authorization vulnerability in Google Android, published on 30 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In getCallStateUsingPackage of Telecom Service, there is a missing permission check. This could lead to local information disclosure of the call state with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-190400974
Weakness: CWE-276
Which versions are affected by CVE-2021-39779?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-39779?
No fix has been published for CVE-2021-39779 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-39779 being exploited?
There is no known exploitation of CVE-2021-39779 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as GHSA-gvp5-jqvx-xpj2.