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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Jamie Landeg Jones <jamie@bishopston.net>
References: <200912030930.nB39UhW9038238@freefall.freebsd.org>
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Date: Fri, 04 Dec 2009 11:21:57 +0100
In-Reply-To: <200912031829.nB3ITEiX015363@catflap.bishopston.net> (Jamie
	Landeg Jones's message of "Thu, 03 Dec 2009 18:29:14 +0000")
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Cc: freebsd-security@freebsd.org, timo.schoeler@riscworks.net
Subject: Re: FreeBSD Security Advisory FreeBSD-SA-09:16.rtld
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Jamie Landeg Jones <jamie@bishopston.net> writes:
> However, I would certainly apply the patch anyway - basically, the old way
> was just blindly unsetting environment variables and blindly assuming the
> unsetting worked.

It won't build.

> Just in case there is some other way of exploiting the fact that rtld.c d=
idn't
> check whether unsetenv was successful (which I bet people are now looking=
 for)
> I'd apply the patch to 6.3 and 6.4 also, just to be sure.

It won't build.

from <stdlib.h> in stable/6:

void     unsetenv(const char *);

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no