These are the five kernel vulnerabilities concerning the Ubuntu 10.04 LTS (Lucid Lynx) operating system: CVE-2013-2164, CVE-2013-2232, CVE-2013-2234, CVE-2013-2237 and CVE-2013-2851. You can click on each one to see how it affects your system, or go 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-2.6.32-50 (2.6.32-50.112) package(s). To apply the update, run the Update Manager application or follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.