Ubuntu Security Notice USN-2383-1
14th October, 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 version:
- 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
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all
the necessary changes.