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Date: Wed, 02 Nov 2022 13:45:27 +0100
From: Steffen Nurpmeso <>
Subject: Re: Re: OpenSSL X.509 Email Address 4-byte
 Buffer Overflow (CVE-2022-3602), X.509 Email Address Variable Length Buffer
 Overflow (CVE-2022-3786)

 |On Wed, Nov 2, 2022 at 7:57 AM Tavis Ormandy <> wrote:
 |> I don't know rust, so serious question - if this same buggy punycode

The problem with punycode is punycode as such.
It should have been URL-encoded UTF-8 maybe with normal
decomposition from the start, and the DNS limits should have been
raised, all that now well over twenty years ago.

Poul-Hennig Kamp of FreeBSD, varnish etc wrote just this week on
another ML

 |> The other ting to keep in mind is the immense existing codebase of
 |> unix kernels et al, not to mention application code depending on
 |> those kernels.
 |This is the mistake we IT-people keep doing again and again:
 |Forwards compatibility is /far/ more important than backwards compatibil\

It would have been grown out by now.  And many problems would
never happened, including those incompatibilities that they wanted
to avoid.  My one cent.

Other than that.  Sigh.  C is the culprit!!

|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)

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