USN-2036-1: Linux kernel vulnerabilities

3 December 2013

linux vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 10.04 LTS


Several security issues were fixed in the kernel.

Software Description

  • linux - Linux kernel


A flaw was discovered in the Linux kernel’s KVM (kernel virtual machine). An administrative user in the guest OS could leverage this flaw to cause a denial of service in the host OS. (CVE-2012-2121)

Multiple integer overflow flaws were discovered in the Alchemy LCD frame- buffer drivers in the Linux kernel. An unprivileged local user could exploit this flaw to gain administrative privileges. (CVE-2013-4511)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 10.04 LTS
linux-image-2.6.32-54-386 - 2.6.32-54.116
linux-image-2.6.32-54-generic - 2.6.32-54.116
linux-image-2.6.32-54-generic-pae - 2.6.32-54.116
linux-image-2.6.32-54-ia64 - 2.6.32-54.116
linux-image-2.6.32-54-lpia - 2.6.32-54.116
linux-image-2.6.32-54-powerpc - 2.6.32-54.116
linux-image-2.6.32-54-powerpc-smp - 2.6.32-54.116
linux-image-2.6.32-54-powerpc64-smp - 2.6.32-54.116
linux-image-2.6.32-54-preempt - 2.6.32-54.116
linux-image-2.6.32-54-server - 2.6.32-54.116
linux-image-2.6.32-54-sparc64 - 2.6.32-54.116
linux-image-2.6.32-54-sparc64-smp - 2.6.32-54.116
linux-image-2.6.32-54-versatile - 2.6.32-54.116
linux-image-2.6.32-54-virtual - 2.6.32-54.116

To update your system, please follow these instructions:

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.