Ubuntu Security Notices
USN-4098-1

USN-4098-1: wpa_supplicant and hostapd vulnerability

Publication date

14 August 2019

Overview

wpa_supplicant and hostapd could be made to expose sensitive information over the network.

Releases

19.04 18.04 LTS

Packages

wpa - client support for WPA and WPA2

Details

It was discovered that wpa_supplicant and hostapd were vulnerable to a side
channel attack against EAP-pwd. A remote attacker could possibly use this
issue to recover certain passwords.

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
19.04 disco	hostapd – 2:2.6-21ubuntu3.2
19.04 disco	wpasupplicant – 2:2.6-21ubuntu3.2
18.04 bionic	hostapd – 2:2.6-15ubuntu2.4
18.04 bionic	wpasupplicant – 2:2.6-15ubuntu2.4

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References

CVE-2019-13377

CVE-2019-13377