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=========================================================================Ubuntu Security Notice USN-3249-1
March 29, 2017

linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

The system could be made to crash or run programs as an administrator.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-gke: Linux kernel for Google Container Engine (GKE) systems
- linux-raspi2: Linux kernel for Raspberry Pi 2
- linux-snapdragon: Linux kernel for Snapdragon Processors
Details:

It was discovered that the xfrm framework for transforming packets in the
Linux kernel did not properly validate data received from user space. A
local attacker could use this to cause a denial of service (system crash)
or execute arbitrary code with administrative privileges.

Update instructions:

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

Ubuntu 16.04 LTS:
  linux-image-4.4.0-1009-gke      4.4.0-1009.9
  linux-image-4.4.0-1012-aws      4.4.0-1012.21
  linux-image-4.4.0-1051-raspi2   4.4.0-1051.58
  linux-image-4.4.0-1054-snapdragon  4.4.0-1054.58
  linux-image-4.4.0-71-generic    4.4.0-71.92
  linux-image-4.4.0-71-generic-lpae  4.4.0-71.92
  linux-image-4.4.0-71-lowlatency  4.4.0-71.92
  linux-image-4.4.0-71-powerpc-e500mc  4.4.0-71.92
  linux-image-4.4.0-71-powerpc-smp  4.4.0-71.92
  linux-image-4.4.0-71-powerpc64-smp  4.4.0-71.92
  linux-image-aws                 4.4.0.1012.15
  linux-image-generic             4.4.0.71.77
  linux-image-generic-lpae        4.4.0.71.77
  linux-image-gke                 4.4.0.1009.11
  linux-image-lowlatency          4.4.0.71.77
  linux-image-powerpc-e500mc      4.4.0.71.77
  linux-image-powerpc-smp         4.4.0.71.77
  linux-image-powerpc64-smp       4.4.0.71.77
  linux-image-raspi2              4.4.0.1051.52
  linux-image-snapdragon          4.4.0.1054.47

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:
  https://ubuntu.com/security/notices/USN-3249-1
  CVE-2017-7184

Package Information:
  https://launchpad.net/ubuntu/+source/linux/4.4.0-71.92
  https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1012.21
  https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1009.9
  https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1051.58
  https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1054.58

Ubuntu 3249-1: Linux kernel vulnerability

March 30, 2017
The system could be made to crash or run programs as an administrator.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.4.0-1009-gke 4.4.0-1009.9 linux-image-4.4.0-1012-aws 4.4.0-1012.21 linux-image-4.4.0-1051-raspi2 4.4.0-1051.58 linux-image-4.4.0-1054-snapdragon 4.4.0-1054.58 linux-image-4.4.0-71-generic 4.4.0-71.92 linux-image-4.4.0-71-generic-lpae 4.4.0-71.92 linux-image-4.4.0-71-lowlatency 4.4.0-71.92 linux-image-4.4.0-71-powerpc-e500mc 4.4.0-71.92 linux-image-4.4.0-71-powerpc-smp 4.4.0-71.92 linux-image-4.4.0-71-powerpc64-smp 4.4.0-71.92 linux-image-aws 4.4.0.1012.15 linux-image-generic 4.4.0.71.77 linux-image-generic-lpae 4.4.0.71.77 linux-image-gke 4.4.0.1009.11 linux-image-lowlatency 4.4.0.71.77 linux-image-powerpc-e500mc 4.4.0.71.77 linux-image-powerpc-smp 4.4.0.71.77 linux-image-powerpc64-smp 4.4.0.71.77 linux-image-raspi2 4.4.0.1051.52 linux-image-snapdragon 4.4.0.1054.47 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

https://ubuntu.com/security/notices/USN-3249-1

CVE-2017-7184

Severity
March 29, 2017

Package Information

https://launchpad.net/ubuntu/+source/linux/4.4.0-71.92 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1012.21 https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1009.9 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1051.58 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1054.58

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