It was discovered that aircrack-ng, a WEP/WPA security analysis tool, performs
insufficient validation of 802.11 authentication packets, which allows the
execution of arbitrary code.
For the testing distribution (lenny) this is fixed in version 1:0.8-0.1lenny1
For the unstable distribution (sid) this is fixed in version 1:0.7-3
This upgrade is recommended if you use aircrack-ng.
If you have the secure testing lines in your sources.list, you can update by running this command as root:
apt-get update && apt-get install aircrack-ng
To use the Debian testing security archive, add the following lines to your /etc/apt/sources.list:
deb http://security.debian.org/ testing/updates main contrib non-free
deb-src http://security.debian.org/ testing/updates main contrib non-free