USN-6945-1: wpa_supplicant and hostapd vulnerability

Releases

• Ubuntu 24.04 LTS
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

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.

Update instructions

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

Ubuntu 24.04

• wpasupplicant - 2:2.10-21ubuntu0.1

Ubuntu 22.04

• wpasupplicant - 2:2.10-6ubuntu2.1

Ubuntu 20.04

• wpasupplicant - 2:2.9-1ubuntu4.4

Ubuntu 18.04

• wpasupplicant - 2:2.6-15ubuntu2.8+esm1

Ubuntu 16.04

• wpasupplicant - 2.4-0ubuntu6.8+esm1

Ubuntu 14.04

• wpasupplicant - 2.1-0ubuntu1.7+esm5

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

References

• CVE-2024-5290
• https://launchpad.net/bugs/2067613