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Ubuntu Security Notice USN-2383-1
October 14, 2014

wpa, wpasupplicant vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS
• Ubuntu 10.04 LTS

Summary:

wpa_supplicant could be made to run programs if it received specially
crafted network traffic.

Software Description:

• wpa: client support for WPA and WPA2
• wpasupplicant: client support for WPA and WPA2

Details:

Jouni Malinen discovered that the wpa_cli tool incorrectly sanitized
strings when being used with action scripts. A remote attacker could
possibly use this issue to execute arbitrary commands.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
wpasupplicant 2.1-0ubuntu1.1

Ubuntu 12.04 LTS:
wpasupplicant 0.7.3-6ubuntu2.3

Ubuntu 10.04 LTS:
wpasupplicant 0.6.9-3ubuntu3.2

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

References:
http://www.ubuntu.com/usn/usn-2383-1
CVE-2014-3686

Package Information:
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.1
https://launchpad.net/ubuntu/+source/wpasupplicant/0.7.3-6ubuntu2.3
https://launchpad.net/ubuntu/+source/wpasupplicant/0.6.9-3ubuntu3.2

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