Mozilla Firefox before 3.5.14 and 3.6.x before 3.6.11, Thunderbird before
3.0.9 and 3.1.x before 3.1.5, and SeaMonkey before 2.0.9 recognize a
wildcard IP address in the subject's Common Name field of an X.509
certificate, which might allow man-in-the-middle attackers to spoof
arbitrary SSL servers via a crafted certificate issued by a legitimate
Certification Authority.

 jdstrand> real problem but with very unlikely circumstances
 jdstrand> needs new NSPR

chriscoulson