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Message-ID: <20140202041444.GA27556@openwall.com>
Date: Sun, 2 Feb 2014 08:14:44 +0400
From: Solar Designer <solar@...nwall.com>
To: oss-security@...ts.openwall.com
Subject: Re: Linux 3.4+: arbitrary write with CONFIG_X86_X32 (CVE-2014-0038)
On Fri, Jan 31, 2014 at 04:11:16AM +0400, Solar Designer wrote:
> <grsecurity> I would not be surprised to see an exploit for this within the next few days
Just off Twitter:
<noptrix> recvmmsg.c - linux 3.4+ local root (CONFIG_X86_X32=y) expl0it - http://pastebin.com/DH3Lbg54
SHA-256(recvmmsg.c.txt) = 4603acf96e845cecd2c5877a68fa5b5c591ba00c52859ded2a31a9daf48a457d
for the version I just downloaded (but did not review, although it looks
sane at first glance). The exploit includes offsets for 3 Ubuntu kernels.
Alexander
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