GNU userv 1.0.0 and earlier does not properly perform file descriptor swapping, which can corrupt the USERV_GROUPS and USERV_GIDS environmental variables and allow local users to bypass some access restrictions.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Userv | Gnu | 1.0.0 (including) | 1.0.0 (including) |