On 2/18/16 10:17 AM, Tom Lane wrote:
> Christoph Berg <m...@debian.org> writes:
>> Currently the server insists on ssl_key_file's permissions to be 0600
>> or less, and be owned by the database user. Debian has been patching
>> be-secure.c since forever (the git history goes back to 8.2beta1) to
>> relax that to 0640 or less, and owned by root or the database user.
> Debian can do that if they like, but it's entirely unacceptable as an
> across-the-board patch.  Not all systems treat groups as being narrow
> domains in which it's okay to assume that group-readable files are
> secure enough to be keys.  As an example, on OS X user files tend to be
> group "staff" or "admin" which'd be close enough to world readable.
> We could allow group-readable if we had some way to know whether to
> trust the specific group, but I don't think there's any practical
> way to do that.  System conventions vary too much.

Wouldn't POSIX ACLs bypass this anyway?

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