Ubuntu Security Notice USN-2577-1
23rd April, 2015
wpa vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 15.04
- Ubuntu 14.10
- Ubuntu 14.04 LTS
Summary
wpa_supplicant could be made to crash, expose memory, or run programs if it
received specially crafted network traffic.
Software description
- wpa
– client support for WPA and WPA2
Details
It was discovered that wpa_supplicant incorrectly handled SSID information
when creating or updating P2P peer entries. A remote attacker could use
this issue to cause wpa_supplicant to crash, resulting in a denial of
service, expose memory contents, or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 15.04:
-
wpasupplicant
2.1-0ubuntu7.1
- Ubuntu 14.10:
-
wpasupplicant
2.1-0ubuntu4.1
- Ubuntu 14.04 LTS:
-
wpasupplicant
2.1-0ubuntu1.2
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.