Suppose you operate an Apache-based Linux Web server that hosts your company's e-commerce site. Suppose further that there is a worm called "Worminator X," which exploits a (fictional) buffer overflow bug in the Apache Web server package that can result in a remote root compromise. Construct a simple threat model that describes the risk this represents: attacker(s), attack vector, vulnerability, assets, and likelihood of occurrence, likely impact, and plausible mitigations.