CVE-2021-39707: High severity Google Android vulnerability
In onReceive of AppRestrictionsFragment.java, there is a possible way to start a phone call without permissions due to a confused deputy. This could lead to local escalation of privilege 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/packages/apps/Settingsto a version that resolves this vulnerability.Fixed in 10:2022-03-01 - Upgrade
Upgrade
android/platform/packages/apps/Settingsto a version that resolves this vulnerability.Fixed in 11:2022-03-01 - Upgrade
Upgrade
android/platform/packages/apps/Settingsto a version that resolves this vulnerability.Fixed in 12:2022-03-01 - Upgrade
Upgrade
android/platform/packages/apps/Settingsto a version that resolves this vulnerability.Fixed in 12L:2022-03-01
Event History
Frequently Asked Questions
What is the severity of CVE-2021-39707?
CVE-2021-39707 is categorized as a high-severity vulnerability due to its potential for local privilege escalation without user interaction.
How do I fix CVE-2021-39707?
To fix CVE-2021-39707, users should update their Android devices to a version that has addressed this vulnerability, specifically Android 10, 11, or 12 with security patches applied.
What risks are associated with CVE-2021-39707?
The risks associated with CVE-2021-39707 include potential unauthorized phone calls being initiated by malicious applications without user consent.
Which versions of Android are affected by CVE-2021-39707?
CVE-2021-39707 affects Android versions 10.0, 11.0, and 12.0.
Is user interaction required to exploit CVE-2021-39707?
No, user interaction is not required to exploit CVE-2021-39707, making it particularly concerning for users.