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==========================================================================
Ubuntu Security Notice USN-3266-1
April 25, 2017

linux, linux-raspi2 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.10

Summary:

The system could be made to crash under certain conditions.

Software Description:
- linux: Linux kernel
- linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

Alexander Popov discovered that a race condition existed in the Stream
Control Transmission Protocol (SCTP) implementation in the Linux kernel. A
local attacker could use this to cause a denial of service (system crash).

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.10:
  linux-image-4.8.0-1035-raspi2   4.8.0-1035.38
  linux-image-4.8.0-49-generic    4.8.0-49.52
  linux-image-4.8.0-49-generic-lpae  4.8.0-49.52
  linux-image-4.8.0-49-lowlatency  4.8.0-49.52
  linux-image-4.8.0-49-powerpc-e500mc  4.8.0-49.52
  linux-image-4.8.0-49-powerpc-smp  4.8.0-49.52
  linux-image-generic             4.8.0.49.61
  linux-image-generic-lpae        4.8.0.49.61
  linux-image-lowlatency          4.8.0.49.61
  linux-image-powerpc-e500mc      4.8.0.49.61
  linux-image-powerpc-smp         4.8.0.49.61
  linux-image-raspi2              4.8.0.1035.39

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  http://www.ubuntu.com/usn/usn-3266-1
  CVE-2017-5986

Package Information:
  https://launchpad.net/ubuntu/+source/linux/4.8.0-49.52
  https://launchpad.net/ubuntu/+source/linux-raspi2/4.8.0-1035.38


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