GNU ed before 0.2-18.1 allows local users to overwrite the files of other users via a symlink attack.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ed | Gnu | 2.15 (including) | 2.15 (including) |
| Ed | Gnu | 2.16tr (including) | 2.16tr (including) |
| Ed | Gnu | 2.18 (including) | 2.18 (including) |
| Ed | Gnu | 2.18.0 (including) | 2.18.0 (including) |
| Red Hat Linux 5.2 | RedHat | * | |
| Red Hat Linux 6.0 | RedHat | * | |
| Red Hat Linux 6.1 | RedHat | * | |
| Red Hat Linux 6.2 | RedHat | * | |
| Red Hat Linux 7.0 | RedHat | * |