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From: Guenter Roeck <linux@roeck-us.net>
To: netdev@vger.kernel.org
Cc: stable@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Fixing CVE-2017-16939 in v4.4.y and possibly v3.18.y
Date: Thu, 30 Nov 2017 10:37:40 -0800	[thread overview]
Message-ID: <20171130183740.GA20343@roeck-us.net> (raw)

Hi,

The fix for CVE-2017-16939 has been applied to v4.9.y, but not to v4.4.y
and older kernels. However, I confirmed that running the published POC
(see https://blogs.securiteam.com/index.php/archives/3535) does crash a 4.4
kernel.

I confirmed that the following two patches fix the problem in v4.4.y.
Please consider applying them to v4.4.y (and possibly v3.18.y).

fc9e50f5a5a4e ("netlink: add a start callback for starting a netlink dump")
1137b5e2529a8 ("ipsec: Fix aborted xfrm policy dump crash")

My apologies for the noise if this is already under consideration.

Thanks,
Guenter

             reply	other threads:[~2017-11-30 18:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-30 18:37 Guenter Roeck [this message]
2017-12-01 15:09 ` Fixing CVE-2017-16939 in v4.4.y and possibly v3.18.y Greg Kroah-Hartman
2017-12-01 19:48 ` Michal Kubecek
2017-12-03  0:20   ` Guenter Roeck
2017-12-03  0:44     ` Michal Kubecek
2017-12-04 12:05     ` Greg Kroah-Hartman

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