Re: CVE-2019-9193 about COPY FROM/TO PROGRAM

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: "Jonathan S(dot) Katz" <jkatz(at)postgresql(dot)org>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Daniel Verite <daniel(at)manitou-mail(dot)org>, pgsql-general <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: CVE-2019-9193 about COPY FROM/TO PROGRAM
Date: 2019-04-02 19:42:11
Message-ID: CABUevExbzaRZmH6Nz=DLQD-vX+wb7cEBgAOP3Nb_oz4qVoV+8w@mail.gmail.com
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On Mon, Apr 1, 2019 at 4:04 PM Jonathan S. Katz <jkatz(at)postgresql(dot)org>
wrote:

>
> > On Apr 1, 2019, at 9:55 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> >
> > Magnus Hagander <magnus(at)hagander(dot)net> writes:
> >>> On Sat, Mar 30, 2019 at 10:16 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> >>> Yeah; this is supposing that there is a security boundary between
> >>> Postgres superusers and the OS account running the server, which
> >>> there is not. We could hardly have features like untrusted PLs
> >>> if we were trying to maintain such a boundary.
> >
> >> I wonder if we need to prepare some sort of official response to that.
> >> I was considering writing up a blog post about it, but maybe we need
> >> something more official?
> >
> > Blog post seems like a good idea. As for an "official" response,
> > it strikes me that maybe we need better documentation.
>
> +1, though I’d want to see if people get noisier about it before we rule
> out an official response.
>
> A blog post from a reputable author who can speak to security should
> be good enough and we can make noise through our various channels.
>

I have now made such a post at
https://blog.hagander.net/when-a-vulnerability-is-not-a-vulnerability-244/

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

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