From: Nuno Silva <nuno.silva@vgertech.com>
To: erik@hensema.net
Cc: linux-kernel@vger.kernel.org
Subject: Re: How to fix the ptrace flaw without rebooting
Date: Fri, 04 Apr 2003 07:19:20 +0100 [thread overview]
Message-ID: <3E8D23E8.4060508@vgertech.com> (raw)
In-Reply-To: <slrnb8oaad.j0h.erik@bender.home.hensema.net>
Hello!
Erik Hensema wrote:
>
> If you can't reboot to apply a security fix, you've got a serious problem.
>
> A better fix in a running system is to simply disable dynamic module
> loading: echo /no/such/file > /proc/sys/kernel/modprobe
> At the very least you can be sure your machine won't crash this way ;-)
>
IIRC, dynamic module loading is not required to exploit all the bugs
present in ptrace. Luckly all the exploits floating around require kmod :)
Regards,
Nuno Silva
next prev parent reply other threads:[~2003-04-04 6:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-03 12:05 How to fix the ptrace flaw without rebooting Chuck Ebbert
2003-04-03 12:30 ` Erik Hensema
2003-04-04 6:19 ` Nuno Silva [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-04-04 11:18 Chuck Ebbert
2003-04-04 11:15 ` Alan Cox
2003-04-06 1:28 ` Paul Jakma
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3E8D23E8.4060508@vgertech.com \
--to=nuno.silva@vgertech.com \
--cc=erik@hensema.net \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox