From: Richard Miller <miller@hamnavoe.demon.co.uk>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] 4th edition file server available
Date: Mon, 13 Jan 2003 10:01:30 +0000 [thread overview]
Message-ID: <14897aa3a24d632f340f30863deb7850@hamnavoe.demon.co.uk> (raw)
> One advantage (as I understood it) of using a specialized kernel
> was a form of security -- there were *no* user mode programs
> whose bugs could be exploited.
It went further than that: you couldn't even exploit a buffer overflow
to exec a shell, because there was no shell and no exec.
Would it be feasible, as part of bootstrapping a minimal fossil
server, to remove or otherwise disable the exec system call
once everything was running?
-- Richard
next reply other threads:[~2003-01-13 10:01 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-13 10:01 Richard Miller [this message]
2003-01-13 17:13 ` Russ Cox
2003-01-14 15:20 ` andrey mirtchovski
2003-01-14 18:55 ` Scott Schwartz
2003-01-14 19:11 ` andrey mirtchovski
2003-01-14 19:18 ` andrey mirtchovski
2003-01-14 19:28 ` Russ Cox
2003-01-15 9:34 ` Douglas A. Gwyn
2003-01-15 14:22 ` Russ Cox
2003-01-13 17:19 ` rob pike, esq.
-- strict thread matches above, loose matches on Subject: below --
2003-02-10 21:06 Andrey S. Kukhar
2003-01-14 19:13 Russ Cox
2003-01-14 18:23 Skip Tavakkolian
2003-01-14 6:06 okamoto
2003-01-14 13:55 ` David Presotto
2003-02-14 16:04 ` Andrey S. Kukhar
2003-01-12 2:36 Joel Salomon
2003-01-12 3:10 ` jmk
2003-01-09 13:44 rog
2003-01-09 14:39 ` Russ Cox
2003-01-08 8:13 okamoto
2003-01-08 16:56 ` Russ Cox
2003-01-08 7:18 Skip Tavakkolian
2003-01-08 6:45 Russ Cox
2003-01-08 11:09 ` Axel Belinfante
2003-01-08 15:57 ` Fco.J.Ballesteros
2003-01-08 15:56 ` andrey mirtchovski
2003-01-08 16:53 ` Russ Cox
2003-01-08 22:52 ` Andrew
2003-01-08 22:54 ` Russ Cox
2003-01-09 8:24 ` Fco.J.Ballesteros
2003-01-09 13:16 ` Axel Belinfante
2002-11-06 17:37 [9fans] ddc Russ Cox
2002-11-06 17:50 ` andrey mirtchovski
2002-11-06 19:33 ` Scott Schwartz
2002-11-06 20:39 ` Jim Choate
2002-11-07 3:17 ` Doc Shipley
2002-11-07 4:57 ` Jim Choate
2002-11-07 5:39 ` Lucio De Re
2002-11-07 5:45 ` Doc Shipley
2002-11-07 6:08 ` Jim Choate
2002-11-07 4:21 ` Lucio De Re
2002-11-07 8:24 ` paurea
2002-10-15 1:20 [9fans] EHLO EHLO presotto
2002-10-15 16:23 ` Dan Cross
2002-10-15 16:47 ` Anthony Mandic
2002-10-15 22:22 ` Nigel Roles
2002-10-15 23:05 ` andrey mirtchovski
2002-10-16 7:12 ` Steve Kilbane
2002-10-17 9:48 ` Boyd Roberts
2002-10-16 8:54 ` Anthony Mandic
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