Ensim today announces a Security fix for WEBppliance for Linux 3.1.11 which addresses the kernel/quota security vulnerability.

This patch fixes the security vulnerability mentioned below:

Upgrade of kernel to the latest RedHat release 2.4.20-18.7, breaks quota in WEBppliance. After upgrading to the new kernel and quota rpms, quota doesn't work if you try to edit or create sites.