There are no such things as "stupid" questions. However if you think your question is a bit stupid, then this is the right place for you to post it. Please stick to easy to-the-point questions that you feel people can answer fast. For long and complicated questions prefer the other forums within the support section. Before you post please read how to get help
Both are installed by default on Linux Mint 14, so there is nothing suspicious about you getting these upgrades. If you want to know what upgrades are for, you can look at changelog tab in Update Manager.