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Message-ID: <lcn3bt$6t7$4@ger.gmane.org>
Date: Mon, 3 Feb 2014 03:45:02 +0000 (UTC)
From: mancha <mancha1@...h.com>
To: oss-security@...ts.openwall.com
Subject: Re: Linux 3.4+: arbitrary write with CONFIG_X86_X32 (CVE-2014-0038)
On Mon, 03 Feb 2014 03:16:13 +0000, mancha wrote:
> On Sun, 02 Feb 2014 08:14:44 +0400, Solar Designer wrote:
>
[SNIP]
>
> The exploit by Rebel works as advertised. I've confirmed on a non-Ubuntu box
> after making some changes.
>
> Attached find a kernel module I've authored that protects from the attack.
>
> I'm sharing it for folks currently on vulnerable systems still waiting on
> patches from their upstream.
>
> # make
> # insmod nox32recvmmsg.ko
>
> note: rmmod'ing restores original (vulnerable) state.
>
> --mancha
Having issues attaching via this client. So, posted kernel module here:
http://sf.net/projects/mancha/files/sec/nox32recvmmsg.tar.bz2
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