"Basically when these vulnerable browsers check the domain name
contained in the attacker’s certificate, they stop reading any
characters that follow the “\0″ in the name. More significantly,
an attacker can also register a wildcard domain, such as *\0.
badguy.com, which would then give him a certificate that would
allow him to masquerade as any site on the internet and intercept
communication"
- Vulnerabilities Allow Attacker to Impersonate Any Website | Threat Level | Wired.com
http://r0.sharedcopy.com/7do758p