CVE-2023-21013: Out of Bounds Read in forceStaDisconnection in hostapd.cpp in hostapd

platform/external/wpa_supplicant_8 Updated 02 Oct 2025

Summary

01/03/2023

Disclosed on

CVE-2023-21013

CVE

Yes i

Fix available

Moderate

Severity

Not published

CVSS Score

CVE-2023-21013: In forceStaDisconnection of hostapd.cpp, there is a possible out of bounds read due to a missing bounds check. Affects platform/external/wpa_supplicant_8 versions >= 13:0, < 13:2023-03-01. Fixed in 13:2023-03-01. How to fix ↓

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Background

The package under scrutiny is platform/external/wpa_supplicant_8, which is part of the Android ecosystem. This package provides the functionality of a Wi-Fi Protected Access (WPA) supplicant, allowing devices to connect to Wi-Fi networks securely. The vulnerability affects the forceStaDisconnection function in the hostapd.cpp file. This function is responsible for disconnecting a station from the access point. The vulnerability arises from a missing bounds check, which can lead to an out of bounds read. Exploiting this vulnerability requires local system execution privileges, and no user interaction is necessary.

Vulnerability Detail

The vulnerability in forceStaDisconnection of hostapd.cpp is an out of bounds read issue. Due to a missing bounds check, an attacker can trigger this vulnerability to disclose local information. The impact of this vulnerability can be significant, as it can potentially expose sensitive data. However, exploitation of this vulnerability requires the attacker to have system execution privileges. No user interaction is needed for exploitation.

How To Fix

Minimum fixed version

13:2023-03-01

This is the first release that contains the fix.

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Conclusion

The out of bounds read vulnerability in forceStaDisconnection of hostapd.cpp in the platform/external/wpa_supplicant_8 package can lead to local information disclosure. Exploiting this vulnerability requires system execution privileges, and no user interaction is needed. It is recommended to update the affected package to version 13 or later to mitigate this vulnerability.

See every vulnerability recorded for platform/external/wpa_supplicant_8 →