Little Snitch version 4.4.0 fixes a vulnerability in a privileged helper tool. However, the operating system may have made a copy of the privileged helper. This copy is not updated or removed by the upgrade procedure, it is only updated when the user requests a Diagnostics Report via Little Snitch Configuration. Computers may therefore still be vulnerable after an upgrade to 4.4.0.
Only Little Snitch version 4.4.0 is affected. All newer versions remove any copies of the privileged helper tool the operating system may have made.
We recommend upgrading to Little Snitch 4.4.1 or higher. If an upgrade is not possible for whatever reason, just remove copies of privileged helper manually by executing the following commands in a Terminal window:
sudo launchctl unload /Library/LaunchDaemons/at.obdev.LittleSnitchHelper.LSHelperService.plist sudo rm -f /Library/PrivilegedHelperTools/at.obdev.LittleSnitchHelper.LSHelperService sudo rm -f /Library/LaunchDaemons/at.obdev.LittleSnitchHelper.LSHelperService.plist