[28575] in Kerberos
Re: krb524d and KRB524_KRB4_DISABLED
daemon@ATHENA.MIT.EDU (Jeffrey Altman)
Wed Oct 17 12:45:37 2007
Message-ID: <47163CBC.2030502@secure-endpoints.com>
Date: Wed, 17 Oct 2007 12:47:56 -0400
From: Jeffrey Altman <jaltman@secure-endpoints.com>
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To: john@iastate.edu
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John Hascall wrote:
>
> I tried it, and alas, it appears that (at least some old) clients die
> ugly when they get a krb5_error_code that they do not know:
>
> ...
> This kinit was compiled against krb5-1.2.6 which seems to know only
> codes -1750206208 .. -1750206201 and not -1750206200[KRB524_KRB4_DISABLED]
>
That implies a bug in com_err() at least in 1.2.6 in which an error code
within a base range but beyond the length of the table will cause a
memory access error. Reading the code it looks like this shouldn't
happen with the 1-6 branch. However, I don't see a commit message with
a specific fix for this so you might want to make up an error code and
throw it at a 1.6 client just to make sure.
Jeffrey Altman
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