1. Ubuntu Security Notices
  2. USN-3745-1

USN-3745-1: wpa_supplicant and hostapd vulnerability

Publication date

20 August 2018

Overview

wpa_supplicant and hostapd could be made to expose sensitive information if it received a crafted message.

Releases

Packages

  • wpa - client support for WPA and WPA2

Details

It was discovered that wpa_supplicant and hostapd incorrectly handled certain
messages. An attacker could possibly use this to access sensitive information.

It was discovered that wpa_supplicant and hostapd incorrectly handled certain
messages. An attacker could possibly use this to access sensitive information.

Update instructions

After a standard system update you need to reboot your computer to 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
18.04 bionic hostapd –  2:2.6-15ubuntu2.1
wpasupplicant –  2:2.6-15ubuntu2.1
16.04 xenial hostapd –  1:2.4-0ubuntu6.3
wpasupplicant –  2.4-0ubuntu6.3
14.04 trusty hostapd –  1:2.1-0ubuntu1.6
wpasupplicant –  2.1-0ubuntu1.6

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References

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