tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Tmux | Nicholas_marriott | 1.3 (including) | 1.3 (including) |
| Tmux | Nicholas_marriott | 1.4 (including) | 1.4 (including) |