The logrotation script (/etc/cron.daily/upstart) in the Ubuntu Upstart package before 1.13.2-0ubuntu9, as used in Ubuntu Vivid 15.04, allows local users to execute arbitrary commands and gain privileges via a crafted file in /run/user/*/upstart/sessions/.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Upstart | Ubuntu | * | 1.13.2-0ubuntu7 (including) |
| Upstart | Ubuntu | devel | * |
| Upstart | Ubuntu | upstream | * |