While I was a scout, I created a quick, two-sided, document with the security bug process using info from the GLSA Coordinator Guide and Gentoo Linux Vulnerability Treatment Policy. Most of the time, this really saved me the headache of having to open another tab and dig for the info – especially since I printed the doc and put it next to my monitor.
I posted a PDF version here: http://dev.gentoo.org/~ackle/docs/NewBugProcess.pdf
Hopefully this may help out any new scouts. Beware, though: if the GLSA Coordinator Guide or Vulnerability Policy change, this doc will not be updated.