More patches from Cisco
A week after its latest patch day, network equipment manufacturer Cisco has published three additional advisories that discuss and provide patches to close holes in various products. The manufacturer closed five holes in the Firewall Services Module (FWSM) in its 6500 Catalyst switches and 7600 router series. Attackers can use one of the holes to get around the TACACS+ authentication and obtain administrative access to devices. The other four holes can be used to conduct denial-of-service (DOS) attacks.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump