It was discovered that KDM would allow logins without password checks under certain circumstances. If autologin was configured, and “shutdown with password” enabled, a local user could exploit the problem and gain root privileges.
The problem can be corrected by updating your system to the following package versions:
25 September 2007
A security issue affects these releases of Ubuntu and its derivatives:
It was discovered that KDM would allow logins without password checks under certain circumstances. If autologin was configured, and “shutdown with password” enabled, a local user could exploit the problem and gain root privileges.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the necessary changes.