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Ubuntu 16.04: USN-3404-2 Moderate: HWE Kernel Crash Risk

ubuntu
Calendar Grey August 28, 2017
Dist Ubuntu Esm H88
A resolution for a vulnerability in Ubuntu 16.04 LTS linked to the HWE kernel has been implemented. This update aims to mitigate the risk of potential denial of service incidents.
The system could be made to crash under certain conditions.

Summary

The system could be made to crash under certain conditions.

Software Description:

- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

USN-3404-1 fixed a vulnerability in the Linux kernel for Ubuntu 17.04.

This update provides the corresponding updates for the Linux Hardware

Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS.

A reference count bug was discovered in the Linux kernel ipx protocol

stack. A local attacker could exploit this flaw to cause a denial of

service or possibly other unspecified problems.

Topics%20covered

Topics Covered

security advisory moderate denial of service ubuntu crash risk hwe kernel

Update Instructions

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

Ubuntu 16.04 LTS:
  linux-image-4.10.0-33-generic   4.10.0-33.37~16.04.1
  linux-image-4.10.0-33-generic-lpae  4.10.0-33.37~16.04.1
  linux-image-4.10.0-33-lowlatency  4.10.0-33.37~16.04.1
  linux-image-generic-hwe-16.04   4.10.0.33.35
  linux-image-generic-lpae-hwe-16.04  4.10.0.33.35
  linux-image-lowlatency-hwe-16.04  4.10.0.33.35

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-3404-2

https://ubuntu.com/security/notices/USN-3404-1

CVE-2017-7487

August 28, 2017

Topics%20covered

Topics Covered

security advisory moderate denial of service ubuntu crash risk hwe kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-hwe/4.10.0-33.37~16.04.1

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