Merry Christmas from the FreeBSD Security Team

Colin Percival cperciva at
Fri Dec 23 17:35:38 UTC 2011

On 12/23/11 09:08, Tim Zingelman wrote:
> On Fri, 23 Dec 2011, FreeBSD Security Officer wrote:
>> Unfortunately my hand was forced: One of the issues (FreeBSD-SA-11:08.telnetd)
>> is a remote root vulnerability which is being actively exploited in the wild;
>> bugs really don't come any worse than this.  On the positive side, most people
>> have moved past telnet and on to SSH by now; but this is still not an issue we
>> could postpone until a more convenient time.
> Is there any reason this does would not apply to telnetd from most other
> vendors?  In particular MIT Kerberos & heimdal?

It probably applies to everyone shipping BSD telnetd -- I notified the projects
I could think of, but I'm sure I missed a few.

Heimdal is definitely affected.  I don't think MIT Kerberos ships telnetd any
more... at least, I looked in their SVN tree and didn't find it.

Colin Percival
Security Officer, FreeBSD | | The power to serve
Founder / author, Tarsnap | | Online backups for the truly paranoid

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