Monday, September 17, 2012

New Kernel Vulnerabilities Affect Ubuntu 11.10 and 11.04

New vulnerabilities were found in the Linux kernel packages, this time affecting the Ubuntu 11.04 (Natty Narwhal) and Ubuntu 11.10 (Oneiric Ocelot) operating systems.

The following four Linux kernel vulnerabilities affect Ubuntu 11.04 (Natty Narwhal): CVE-2012-2745, CVE-2012-3412, CVE-2012-3430 and CVE-2012-3511.

The following two Linux kernel vulnerabilities affect Ubuntu 11.10 (Oneiric Ocelot): CVE-2012-3412 and CVE-2012-3430.

As usual, you can click on each one to see how it affects your system, or go here and here for in-depth descriptions, as it affects other Linux operating systems as well.

The security flaws can be fixed if you upgrade your system(s) to the linux-image-2.6.38-16 (2.6.38-16.67) package(s) for Ubuntu 11.04, and the linux-image-3.0.0-26 (3.0.0-26.42) package(s) for Ubuntu 11.10.

Don't forget to reboot your computer after the upgrade!

For detailed instruction on how to upgrade your system see the following link: https://wiki.ubuntu.com/Security/Upgrades.

Monday, September 10, 2012

How to Install Firefox 15 on Ubuntu

Mozilla Firefox 15.0 can be installed in the following Ubuntu operating systems: Ubuntu 12.04 LTS (Precise Pangolin), Ubuntu 11.10 (Oneiric Ocelot), Ubuntu 11.04 (Natty Narwhal) and Ubuntu 10.04 LTS (Lucid Lynx).

step 1)

No matter what Ubuntu operating system (see above supported OSes) you are running, open a terminal and paste the following command:

sudo add-apt-repository ppa:mozillateam/firefox-stable

Hit the Enter key, type your password when asked and hit the Enter key. Hit Enter again when asked.

Don't close the terminal window! Proceed to the next step.

step 2)

Now paste the following command in the same terminal window:

sudo apt-get update && sudo apt-get install -y firefox

Your current Firefox installation will be overwritten. Wait for the installation to finish and close the terminal window.
That's it! The new Mozilla Firefox 15.0 is now fully installed in your Ubuntu machine. You'll need to restart Firefox for the changes to take effect.
In time, your Mozilla Firefox web browser will automatically upgrade to newer versions, so make sure you update your system regularly.