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Ubuntu 14.04 LTS: USN-3188-1 Critical: Linux Kernel Denial Of Service

ubuntu
Calendar Grey February 3, 2017
Scroller Ubuntu Esm H88
Ubuntu Security Notice USN-3189-1 highlights a severe vulnerability in the kernel that could result in significant system instability when exposed to specially crafted packets.
The system could be made to crash if it received specially craftednetwork traffic.

Summary

The system could be made to crash if it received specially crafted

network traffic.

Software Description:

- linux: Linux kernel

Details:

Andrey Konovalov discovered that the SCTP implementation in the Linux

kernel improperly handled validation of incoming data. A remote attacker

could use this to cause a denial of service (system crash).

Topics%20covered

Topics Covered

security advisory denial of service critical issue ubuntu linux kernel

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-3.13.0-108-generic  3.13.0-108.155
  linux-image-3.13.0-108-generic-lpae  3.13.0-108.155
  linux-image-3.13.0-108-lowlatency  3.13.0-108.155
  linux-image-3.13.0-108-powerpc-e500  3.13.0-108.155
  linux-image-3.13.0-108-powerpc-e500mc  3.13.0-108.155
  linux-image-3.13.0-108-powerpc-smp  3.13.0-108.155
  linux-image-3.13.0-108-powerpc64-emb  3.13.0-108.155
  linux-image-3.13.0-108-powerpc64-smp  3.13.0-108.155
  linux-image-generic             3.13.0.108.116
  linux-image-generic-lpae        3.13.0.108.116
  linux-image-lowlatency          3.13.0.108.116
  linux-image-powerpc-e500        3.13.0.108.116
  linux-image-powerpc-e500mc      3.13.0.108.116
  linux-image-powerpc-smp         3.13.0.108.116
  linux-image-powerpc64-emb       3.13.0.108.116
  linux-image-powerpc64-smp       3.13.0.108.116

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-3188-1

CVE-2016-9555

Severity
critical
Lowest
Low
Medium
High
Critical

February 03, 2017

Topics%20covered

Topics Covered

security advisory denial of service critical issue ubuntu linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/3.13.0-108.155

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