nxagent in FreeNX before 0.2.8 does not properly handle when the XAUTHORITY environment variable is not set, which allows local users to access the X server without X authentication.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Freenx | Freenx | 0.2.1 | 0.2.1 |
| Freenx | Freenx | 0.2.4 | 0.2.4 |
| Freenx | Freenx | 0.2.6 | 0.2.6 |
| Freenx | Freenx | 0.2.7 | 0.2.7 |
| Freenx | Freenx | 0.2.3 | 0.2.3 |
| Freenx | Freenx | 0.2.0 | 0.2.0 |
| Freenx | Freenx | 0.2.5 | 0.2.5 |
| Freenx | Freenx | 0.2.2 | 0.2.2 |