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Re: [v6ops] [Technical Errata Reported] RFC6555 (6745)

Erik Kline <ek.ietf@gmail.com> Tue, 23 November 2021 01:35 UTC

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From: Erik Kline <ek.ietf@gmail.com>
Date: Mon, 22 Nov 2021 17:35:37 -0800
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To: RFC Errata System <rfc-editor@rfc-editor.org>
Cc: dwing-ietf@fuggles.com, "Andrew Yourtchenko (ayourtch)" <ayourtch@cisco.com>, Warren Kumari <warren@kumari.net>, "Rob Wilton (rwilton)" <rwilton@cisco.com>, Fred Baker <fredbaker.ietf@gmail.com>, Ron Bonica <rbonica@juniper.net>, mmenke@google.com, v6ops list <v6ops@ietf.org>
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Subject: Re: [v6ops] [Technical Errata Reported] RFC6555 (6745)
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RFC 6555 was obsoleted by RFC 8305.  The latter contains no mention of
same-origin policy.

On Fri, Nov 19, 2021 at 12:08 PM RFC Errata System <
rfc-editor@rfc-editor.org> wrote:

> The following errata report has been submitted for RFC6555,
> "Happy Eyeballs: Success with Dual-Stack Hosts".
>
> --------------------------------------
> You may review the report below and at:
> https://www.rfc-editor.org/errata/eid6745
>
> --------------------------------------
> Type: Technical
> Reported by: Matthew Menke <mmenke@google.com>
>
> Section: 5.6
>
> Original Text
> -------------
>    Web browsers implement a same-origin policy [RFC6454] that causes
>    subsequent connections to the same hostname to go to the same IPv4
>    (or IPv6) address as the previous successful connection.  This is
>    done to prevent certain types of attacks.
>
>    The same-origin policy harms user-visible responsiveness if a new
>    connection fails (e.g., due to a transient event such as router
>    failure or load-balancer failure).  While it is tempting to use Happy
>    Eyeballs to maintain responsiveness, web browsers MUST NOT change
>    their same-origin policy because of Happy Eyeballs, as that would
>    create an additional security exposure.
>
> Corrected Text
> --------------
> <This section should be removed>
>
> Notes
> -----
> This entire section should be deleted.  Same-Origin policy has nothing to
> do with what IP connections to the same hostname go to.  Two connections to
> the same host are same origin even if they're using different IPs.  Happy
> Eyeballs is free to use whatever IP for a hostname it wants for an origin,
> and Same-Origin policy will not be violated.
>
> Instructions:
> -------------
> This erratum is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party
> can log in to change the status and edit the report, if necessary.
>
> --------------------------------------
> RFC6555 (draft-ietf-v6ops-happy-eyeballs-07)
> --------------------------------------
> Title               : Happy Eyeballs: Success with Dual-Stack Hosts
> Publication Date    : April 2012
> Author(s)           : D. Wing, A. Yourtchenko
> Category            : PROPOSED STANDARD
> Source              : IPv6 Operations
> Area                : Operations and Management
> Stream              : IETF
> Verifying Party     : IESG
>
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