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Ubuntu 12.04 LTS USN-3188-2 Moderate: Linux Kernel Denial Of Service

ubuntu
Calendar Grey February 3, 2017
Scroller Ubuntu Esm H88
An upgrade for Ubuntu 12.04 LTS addresses a critical Linux kernel vulnerability that could cause system instability with maliciously crafted network 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-lts-trusty: Linux hardware enablement kernel from Trusty for Precise

Details:

USN-3188-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04

LTS. This update provides the corresponding updates for the Linux

Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu

12.04 LTS.

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 update instructions ubuntu system crash linux kernel

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.13.0-108-generic  3.13.0-108.155~precise1
  linux-image-3.13.0-108-generic-lpae  3.13.0-108.155~precise1
  linux-image-generic-lpae-lts-trusty  3.13.0.108.99
  linux-image-generic-lts-trusty  3.13.0.108.99

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-3188-2

https://ubuntu.com/security/notices/USN-3188-1

CVE-2016-9555

Severity
important
Lowest
Low
Medium
High
Critical

February 03, 2017

Topics%20covered

Topics Covered

security advisory denial of service update instructions ubuntu system crash linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-108.155~precise1

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