Re: SCRAM with channel binding downgrade attack

Magnus Hagander <magnus@hagander.net>

From: Magnus Hagander <magnus@hagander.net>
To: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Cc: Michael Paquier <michael@paquier.xyz>, Heikki Linnakangas <hlinnaka@iki.fi>, Postgres hackers <pgsql-hackers@postgresql.org>, Robert Haas <robertmhaas@gmail.com>, Stephen Frost <sfrost@snowman.net>, Bruce Momjian <bruce@momjian.us>
Date: 2018-06-28T07:33:09Z
Lists: pgsql-hackers
On Wed, Jun 27, 2018 at 6:55 PM, Peter Eisentraut <
peter.eisentraut@2ndquadrant.com> wrote:

> On 6/14/18 13:43, Magnus Hagander wrote:
> > I still think that the fact that we are still discussing what is
> > basically the *basic concepts* of how this would be set up after we have
> > released beta1 is a clear sign that this should not go into 11.
>
> Other than some naming and handling of some nonsensical combinations,
> what is unclear?
>
>
Should there be one or more parameters? How should they interact? At which
level should they be controlled? Limited to SCRAM or other channel
bindings? Are the different levels of SCRAM to be considered different
protocols or the same protocol with a tweak? etc.


-- 
 Magnus Hagander
 Me: https://www.hagander.net/ <http://www.hagander.net/>
 Work: https://www.redpill-linpro.com/ <http://www.redpill-linpro.com/>

Commits

  1. doc: update PG 11 release notes

  2. Fix misspelled pg_trgm contrib name in PostgreSQL 11 release notes

  3. Doc: clarify release note text about v11's new window function features.

  4. Improve wording of release notes item

  5. Fix typos in release notes

  6. Doc: preliminary list of PG11 major features.

  7. Make numeric power() handle NaNs according to the modern POSIX spec.

  8. Various improvements of skipping index scan during vacuum technics

  9. Revert back-branch changes in power()'s behavior for NaN inputs.

  10. Avoid wrong results for power() with NaN input on more platforms.

  11. Avoid wrong results for power() with NaN input on some platforms.

  12. Skip full index scan during cleanup of B-tree indexes when possible

  13. Rewrite the code that applies scan/join targets to paths.

  14. Postpone generate_gather_paths for topmost scan/join rel.

  15. Add casts from jsonb

  16. Make plpgsql use its DTYPE_REC code paths for composite-type variables.

  17. Don't allow VACUUM VERBOSE ANALYZE VERBOSE.

  18. Pass InitPlan values to workers via Gather (Merge).

  19. Account for the effect of lossy pages when costing bitmap scans.

  20. Allow no-op GiST support functions to be omitted.

  21. Rearm statement_timeout after each executed query.

  22. Push limit through subqueries to underlying sort, where possible.