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Date: Tue, 17 Nov 2009 20:48:12 +0100
From: Tomas Hoger <thoger@...hat.com>
To: oss-security@...ts.openwall.com
Cc: jt@....org
Subject: Re: CVE request: oping allows the disclosure of
arbitrary file contents
On Mon, 16 Nov 2009 17:39:30 -0500 (EST) Josh Bressers wrote:
> > Does the RLIMIT_NPROC trick work against oping, or any setuid app
> > that calls setuid(getuid())?
>
> This should work for everything that calls setuid()
>
> I have a little bit about this here:
> http://www.bress.net/blog/archives/34-setuid-madness.html
My previous web search did find that one. Though set_user() doing
NPROC check is only called when new uid differs from current real uid
(so not called in setuid(getuid()) case).
--
Tomas Hoger / Red Hat Security Response Team
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