Canonical announced on June 1st, in a security notice, that a new Linux kernel update for its Ubuntu 11.04 (Natty Narwhal) operating system is now available.These are the five kernel vulnerabilities found in the Linux kernel 2.6.38 packages: CVE-2011-4131, CVE-2012-1601, CVE-2012-2121, CVE-2012-2123, and CVE-2012-2133.
As usual, 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.
Ubuntu 11.04 users can fix these security flaws if they upgrade to the linux-image-2.6.38-15 (2.6.38-15.60) package(s). To apply the update, run the Update Manager application or take a look at some detailed instructions: https://wiki.ubuntu.com/Security/Upgrades.
Don't forget to reboot your computer after the upgrade!
ATTENTION: Due to an unavoidable ABI change, the kernel packages have a new version number, which will force you to reinstall and recompile all third-party kernel modules you might have installed. Moreover, if you use the linux-restricted-modules package, you have to update it as well to get modules that work with the new Linux kernel version.
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