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Re: CVE Request: kernel - sock_diag: Fix out-of-bounds access to sock_diag_handlers[]
From: Marcus Meissner <meissner () suse de>
Date: Mon, 25 Feb 2013 11:43:57 +0100

On Mon, Feb 25, 2013 at 02:13:49PM +0400, Solar Designer wrote:
On Sun, Feb 24, 2013 at 10:10:45AM +0100, Mathias Krause wrote:
An unprivileged user can send a netlink message resulting in an
out-of-bounds access of the sock_diag_handlers[] array which, in turn,
allows userland to take over control while in kernel mode.

Patch (already in net/master):
http://thread.gmane.org/gmane.linux.network/260061

Affected versions:
v3.3 - v3.8

Nice find!  Do you happen to know of distro backports of the affected
code to older kernels?  When you wrote that the bug is "in there for
ages", did you mean that 3.3 has been out "for ages" or something else?

We did not backport the sock_diag code to SUSE Linux Enterprise Server 11 SP2.

Ciao, Marcus


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