14.3 security updates yesterday broke telnet?

[Bleve97]

Hi,
Bumped a FreeBSD box up to latest patch set yesterday using freebsd-update :

 # uname -a
FreeBSD xxxx.xxxx.xxxx.xxxx 14.3-RELEASE FreeBSD 14.3-RELEASE releng/14.3-n271432-8c9ce319fef7 GENERIC amd64

For many years this box serves as an ssh entry into a LAN to allow users access to a telnet-only service (ancient SCO UNIX! rock on!)

Now I see this :

$ telnet clunky
Trying 192.168.1.5...
Connected to clunky.xxx.xxx.xxx.
Escape character is '^]'.
[ Trying mutual KERBEROS5 (host/clunky.xxxxx@YYYYYYY)... ]
Kerberos V5: mk_req failed (open(/tmp/krb5cc_1000): No such file or directory)
Connection closed by foreign host.

I can telnet in to that box from Linux servers, but as of yesterday, not from FreeBSD.

What's with the kerberos? This is just telnet!

Can anyone hit me with a cluestick?

 

[Bleve97]

For the archive ...
I disabled KERBEROS_V5 in a .telnetrc file :

# more .telnetrc
clunky
auth disable KERBEROS_V5

that fixed it for the host and user.