Clarify the security severity of issues that make denial of service easier
https://trac.torproject.org/projects/tor/wiki/org/teams/NetworkTeam/SecurityPolicy
In #22948 (moved), we discovered that the relay integrity digest was easier to guess than it should be. This makes the following classes of attacks easier:
- sending bandwidth and guessing the integrity digest, and
- modifying cells and manipulating the integrity digest.