Ubuntu 4098-1: wpa_supplicant and hostapd vulnerability

    Date14 Aug 2019
    Posted ByLinuxSecurity Advisories
    wpa_supplicant and hostapd could be made to expose sensitive information over the network.
    Ubuntu Security Notice USN-4098-1
    August 14, 2019
    wpa vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 19.04
    - Ubuntu 18.04 LTS
    wpa_supplicant and hostapd could be made to expose sensitive information
    over the network.
    Software Description:
    - wpa: client support for WPA and WPA2
    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:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 19.04:
      hostapd                         2:2.6-21ubuntu3.2
      wpasupplicant                   2:2.6-21ubuntu3.2
    Ubuntu 18.04 LTS:
      hostapd                         2:2.6-15ubuntu2.4
      wpasupplicant                   2:2.6-15ubuntu2.4
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    Package Information:

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