Ubuntu 14.04 lts updates the kernel for security

Ubuntu 14.04 LTS and Ubuntu 12.04 LTS have solved important security problems in their kernel

If you are a user of Ubuntu 12.04 LTS and Ubuntu 14.04 LTS or any of its derivatives such as Linux Mint 17, you should know that their kernels have been updated to correct important vulnerabilities that affected these two distributions and their derivatives. One of the most important changes has taken place in the kernel Netfilter which did not correctly handle the compatibility on 32-bit systems of the IPT_SO_SET_REPLACE events.

Another major bug that has been fixed had to do with loss of information from the Kernel. A loss of information had been discovered in the implementation of the USB module in Linux that could give hackers a way to get sensitive information about kernel memory and gain administrator privileges on systems on systems where modules related to InfiniteBand.

Finally, we point out the Rock Ridge correction of the kernel that caused anyone to mount an ISO 9660 filesystem to obtain sensitive information from the Linux kernel.

How to update the Ubuntu kernel

Updating the kernel of an Ubuntu system is very simple, we just have to do a general system update so that the latest version of Linux is installed on our computer and thus say goodbye to the previous security problems.

We can do it in a very simple way from the terminal with the following commands:

sudo apt-get update sudo apt-get upgrade

Another way to do it if we are not very close to the terminal is graphically through the Ubuntu updates module. To do this, we go to Software Updates, wait for it to find all the available updates and click Install All.

After this we will only have to restart the system for the new kernel to load.