Ubuntu Security Notice 3745-1 - It was discovered that wpa_supplicant and hostapd incorrectly handled certain messages. An attacker could possibly use this to access sensitive information.
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Ubuntu Security Notice USN-3745-1
August 20, 2018
wpa vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
wpa_supplicant and hostapd could be made to expose sensitive
information if it received a crafted message.
Software Description:
- 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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS:
hostapd 2:2.6-15ubuntu2.1
wpasupplicant 2:2.6-15ubuntu2.1
Ubuntu 16.04 LTS:
hostapd 2.4-0ubuntu6.3
wpasupplicant 2.4-0ubuntu6.3
Ubuntu 14.04 LTS:
hostapd 2.1-0ubuntu1.6
wpasupplicant 2.1-0ubuntu1.6
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3745-1
CVE-2018-14526
Package Information:
https://launchpad.net/ubuntu/+source/wpa/2:2.6-15ubuntu2.1
https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu6.3
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.6