Ubuntu 1452-1: Linux kernel vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 11.10: linux-image-3.0.0-20-generic 3.0.0-20.34 linux-image-3.0.0-20-generic-pae 3.0.0-20.34 linux-image-3.0.0-20-omap 3.0.0-20.34 linux-image-3.0.0-20-powerpc 3.0.0-20.34 linux-image-3.0.0-20-powerpc-smp 3.0.0-20.34 linux-image-3.0.0-20-powerpc64-smp 3.0.0-20.34 linux-image-3.0.0-20-server 3.0.0-20.34 linux-image-3.0.0-20-virtual 3.0.0-20.34 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.
References
https://ubuntu.com/security/notices/USN-1452-1
CVE-2012-1601, CVE-2012-2123
Package Information
https://launchpad.net/ubuntu/+source/linux/3.0.0-20.34