CVE-2023-40130: Another Background starting activities restrictions bypass in CallRedirectionService

platform/packages/services/Telecomm Updated 02 Oct 2025

Summary

01/10/2023

Disclosed on

CVE-2023-40130

CVE

Yes i

Fix available

High

Severity

Not published

CVSS Score

CVE-2023-40130: In onBindingDied of CallRedirectionProcessor.java, there is a possible permission bypass due to a logic error in the code. Affects platform/packages/services/Telecomm across 5 version ranges.

>= 11:0, < 11:2023-10-01 >= 12:0, < 12:2023-10-01 >= 12L:0, < 12L:2023-10-01 >= 13:0, < 13:2023-10-01 >= 14-next:0, < 14-next:2023-10-01

Fixed in 14-next:2023-10-01. How to fix ↓

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Background

The CallRedirectionService is a component of the Telecomm package in the Android ecosystem. It is responsible for managing call redirection activities. The service allows background activities to be launched without requiring additional execution privileges. However, a logic error in the onBindingDied method of the CallRedirectionProcessor.java file can lead to a permission bypass, enabling local escalation of privilege. Exploitation of this vulnerability does not require user interaction.

Vulnerability Detail

The vulnerability (CVE-2023-40130) in the CallRedirectionService allows for a bypass of background starting activities restrictions. The logic error in the onBindingDied method can be exploited to escalate privileges locally. This means that an attacker could launch background activities without the necessary execution privileges. The vulnerability affects Android versions 11, 12, 12L, and 13. The severity of this vulnerability is classified as High.

How To Fix

Minimum fixed version

14-next:2023-10-01

This is the first release that contains the fix.

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Workaround

There is no known workaround for this vulnerability. It is recommended to apply the fix provided by updating the Telecomm package to the fixed version.

Conclusion

The CallRedirectionService in the Telecomm package is vulnerable to a background starting activities restrictions bypass. This logic error allows for local escalation of privilege, enabling the launch of background activities without the necessary execution privileges. Developers should update the Telecomm package to the fixed version to mitigate the risk of exploitation. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for platform/packages/services/Telecomm →