CVE-2015-2285
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/.
Date published : 2015-03-12
https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1425685