CVE-2022-20353: Privilege Escalation in com.android.settings.DefaultRingtonePreference and com.android.dialer.app.settings.DefaultRingtonePreference

platform/packages/apps/Settings Updated 02 Oct 2025

Summary

01/08/2022

Disclosed on

CVE-2022-20353

CVE

Yes i

Fix available

High

Severity

Not published

CVSS Score

CVE-2022-20353: In onSaveRingtone of DefaultRingtonePreference.java, there is a possible inappropriate file read due to improper input validation. Affects platform/packages/apps/Settings across 4 version ranges.

>= 10:0, < 10:2022-08-01 >= 11:0, < 11:2022-08-01 >= 12:0, < 12:2022-08-01 >= 12L:0, < 12L:2022-08-01

Fixed in 10:2022-08-01. How to fix ↓

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Background

The package under scrutiny is com.android.settings.DefaultRingtonePreference and com.android.dialer.app.settings.DefaultRingtonePreference. These packages are part of the Android ecosystem and are responsible for managing default ringtone preferences in the Settings and Dialer apps. The DefaultRingtonePreference class is used to handle user-selected ringtones and store the corresponding file path. This vulnerability affects Android versions 10, 11, 12, and 12L.

Vulnerability Detail

The vulnerability, identified as CVE-2022-20353, resides in the onSaveRingtone method of DefaultRingtonePreference.java. The issue stems from improper input validation, which can lead to an inappropriate file read. An attacker can exploit this vulnerability to gain unauthorized access to sensitive information stored in the ringtone file. The exploitation does not require any additional execution privileges or user interaction.

How To Fix

Minimum fixed version

10:2022-08-01

This is the first release that contains the fix.

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Workaround

There is no specific workaround mentioned for this vulnerability. It is recommended to apply the official patches provided by the Android development team.

Conclusion

In conclusion, CVE-2022-20353 is a privilege escalation vulnerability in com.android.settings.DefaultRingtonePreference and com.android.dialer.app.settings.DefaultRingtonePreference. It allows an attacker to read sensitive information without requiring additional execution privileges or user interaction. The Android development team has released patches for the affected versions, and it is crucial to update the devices to the latest Android version to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for platform/packages/apps/Settings →