Expreserve, as used in vi and ex, allows local users to overwrite arbitrary files and gain root access.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Hp-ux | Hp | 9 | 9 |
| Hp-ux | Hp | 10 | 10 |
| Solaris | Sun | 2.4 | 2.4 |
| Sunos | Sun | 4.1.1 | 4.1.1 |
| Sunos | Sun | 4.1.2 | 4.1.2 |
| Sunos | Sun | 4.1.3 | 4.1.3 |
| Sunos | Sun | 4.1.3c | 4.1.3c |
| Sunos | Sun | 4.1.3u1 | 4.1.3u1 |
| Sunos | Sun | 5.0 | 5.0 |
| Sunos | Sun | 5.1 | 5.1 |
| Sunos | Sun | 5.2 | 5.2 |
| Sunos | Sun | 5.3 | 5.3 |
| Sunos | Sun | 5.4 | 5.4 |