1. Ubuntu Security Notices
  2. USN-6945-1

USN-6945-1: wpa_supplicant and hostapd vulnerability

Publication date

6 August 2024

Overview

wpa_supplicant could be made to run programs as an administrator with specially crafted configuration file.

Releases

Packages

  • wpa - client support for WPA and WPA2

Details

Rory McNamara discovered that wpa_supplicant could be made to load
arbitrary shared objects by unprivileged users that have access to
the control interface. An attacker could use this to escalate privileges
to root.

Rory McNamara discovered that wpa_supplicant could be made to load
arbitrary shared objects by unprivileged users that have access to
the control interface. An attacker could use this to escalate privileges
to root.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
24.04 noble wpasupplicant –  2:2.10-21ubuntu0.1
22.04 jammy wpasupplicant –  2:2.10-6ubuntu2.1
20.04 focal wpasupplicant –  2:2.9-1ubuntu4.4
18.04 bionic wpasupplicant –  2:2.6-15ubuntu2.8+esm1
16.04 xenial wpasupplicant –  2.4-0ubuntu6.8+esm1
14.04 trusty wpasupplicant –  2.1-0ubuntu1.7+esm5

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References

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