==========================================================================
Ubuntu Security Notice USN-3455-1
October 16, 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 versions:

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

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://www.ubuntu.com/usn/usn-3455-1
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

Package Information:
https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu9.1
https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu6.2
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.5

—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2
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=8dKV
—–END PGP SIGNATURE—–
—