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Re: [DSA 1571-1] Heimdal

Guido Günther <agx@sigxcpu.org> writes:
> On Thu, May 15, 2008 at 03:33:41PM +1000, Brian May wrote:

>> Apparently, Heimdal in Debian also is affected. I am not aware of any
>> solution other then to manually regenerate all keys.

> Could you give some details here? Password based principals aren't
> affected?

Password-based principals are not affected.  No randomness is used in
generating those keys; the secure material is the password itself, which
is run through a hash algorithm.  Only randomly generated keys (generally
the keys you put into keytabs, but also randomized user principals if you
have any) are affected.

> For those using a keytabs "ktutil -k <keytab> change; ktutil -k purge
> --age=<short>" is sufficient?

That looks right to me, although take that with a grain of salt since I
use MIT personally and am not that familiar with the Heimdal ktutil
command syntax.

Russ Allbery (rra@debian.org)               <http://www.eyrie.org/~eagle/>

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