libc or OpenSSL patches break ssh?

[Jake Evans]

Am running 6.4-PRERELEASE.

Received FreeBSD-SA-09:07.libc / FreeBSD-SA-09:08.openssl notifications today, 
applied applicable patches correctly.

However, now when anyone attempts to connect to my server via SSH, the 
connection is closed after they enter their login & password.

/var/log/messages says the following when they try to login:

Apr 22 12:53:12 x sshd[75505]: fatal: openpty returns device for which ttyname 
fails.
Apr 22 12:53:12 x sshd[75505]: error: chown  0 0 failed: No such file or 
directory
Apr 22 12:53:12 x sshd[75505]: error: chmod  0666 failed: No such file or 
directory