CVE-2023-21194: Out of Bounds Read in Bluetooth Server

platform/packages/modules/Bluetooth Updated 02 Oct 2025

Summary

01/06/2023

Disclosed on

CVE-2023-21194

CVE

Yes i

Fix available

Moderate

Severity

Not published

CVSS Score

CVE-2023-21194: In gatt_dbg_op_name of gatt_utils.cc, there is a possible out of bounds read due to a missing bounds check. Affects platform/packages/modules/Bluetooth across 2 version ranges.

>= 13:0, < 13:2023-06-01 >= 13-next:0, < 13-next:2023-06-01

Fixed in 13-next:2023-06-01. How to fix ↓

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Background

The Bluetooth package in the Android ecosystem is responsible for handling Bluetooth functionality on Android devices. It provides APIs and services for Bluetooth communication, including device discovery, pairing, and data transfer. The package is an integral part of the Android operating system and is used by various applications and system components. However, a vulnerability has been discovered in the Bluetooth server component, which could potentially lead to local information disclosure.

Vulnerability Detail

The vulnerability (CVE-2023-21194) exists in the gatt_dbg_op_name function of the gatt_utils.cc file in the Bluetooth server. Due to a missing bounds check, an out of bounds read can occur, resulting in potential local information disclosure. This vulnerability requires system execution privileges to exploit and does not require user interaction. An attacker with these privileges could exploit the vulnerability to access sensitive information stored on the device.

How To Fix

Minimum fixed version

13-next:2023-06-01

This is the first release that contains the fix.

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Workaround

No workaround has been provided for this vulnerability.

Conclusion

The Bluetooth server component in the Android Bluetooth package is vulnerable to an out of bounds read, which could result in local information disclosure. It is recommended to update the Bluetooth package to the fixed version to mitigate the vulnerability.

See every vulnerability recorded for platform/packages/modules/Bluetooth →