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Date:      Fri, 9 Feb 2001 23:30:32 +0000
From:      Tony Finch <dot@dotat.at>
To:        Robert Watson <rwatson@freebsd.org>
Cc:        207.100@tj2.demon.co.uk, freebsd-hackers@freebsd.org
Subject:   Re: /etc/security: add md5 to suid change notification?
Message-ID:  <20010209233032.S461@hand.dotat.at>
In-Reply-To: <Pine.NEB.3.96L.1010209174800.42231D-100000@fledge.watson.org>
References:  <3A84689F.6625@tj2.demon.co.uk> <Pine.NEB.3.96L.1010209174800.42231D-100000@fledge.watson.org>

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Robert Watson <rwatson@freebsd.org> wrote:
>
>If X has open file descriptors for privileged devices for the purposes of
>direct memory access, the debugging interfaces (and possibly exploits in
>shared libraries) can be used to control the X server in such a way that
>securelevels can be disabled or circumvented.

Does the OpenBSD aperture device solve that problem?

Tony.
-- 
f.a.n.finch    fanf@covalent.net    dot@dotat.at
FINISTERRE SOLE: SOUTHEASTERLY VEERING SOUTHWESTERLY 5 TO 7, OCCASIONALLY GALE
8. OCCASIONAL RAIN. MODERATE OR POOR.


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