USN-3455-1: wpa_supplicant and hostapd vulnerabilities
Ubuntu Security Notice USN-3455-1
16th October, 2017
wpa vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Several security issues were fixed in wpa_supplicant.
Software description
- wpa - client support for WPA and WPA2
Details
Mathy Vanhoef discovered that wpa_supplicant and hostapd incorrectly
handled WPA2. A remote attacker could use this issue with using key
reinstallation attacks to obtain sensitive information. (CVE-2017-13077,
CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081,
CVE-2017-13082, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088)
Imre Rad discovered that wpa_supplicant and hostapd incorrectly handled
invalid characters in passphrase parameters. A remote attacker could use
this issue to cause a denial of service. (CVE-2016-4476)
Imre Rad discovered that wpa_supplicant and hostapd incorrectly handled
invalid characters in passphrase parameters. A local attacker could use
this issue to cause a denial of service, or possibly execute arbitrary
code. (CVE-2016-4477)
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 17.04:
- hostapd 2.4-0ubuntu9.1
- wpasupplicant 2.4-0ubuntu9.1
- Ubuntu 16.04 LTS:
- hostapd 2.4-0ubuntu6.2
- wpasupplicant 2.4-0ubuntu6.2
- Ubuntu 14.04 LTS:
- hostapd 2.1-0ubuntu1.5
- wpasupplicant 2.1-0ubuntu1.5
To update your system, please follow these instructions: http://ift.tt/17VXqjU.
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
CVE-2016-4476, CVE-2016-4477, CVE-2017-13077, CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13082, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088
from Ubuntu Security Notices http://ift.tt/2xJpINY