USN-2037-1: Linux kernel (EC2) vulnerabilities

03 December 2013

Several security issues were fixed in the kernel.

Releases

Packages

  • linux-ec2 - Linux kernel for EC2

Details

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

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.

Related notices

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  • USN-2066-1: linux-image-3.2.0-58-generic, linux-image-3.2.0-58-generic-pae, linux-image-3.2.0-58-highbank, linux-image-3.2.0-58-omap, linux-image-3.2.0-58-powerpc64-smp, linux-image-3.2.0-58-powerpc-smp, linux-image-3.2.0-58-virtual, linux
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  • USN-2071-1: linux-image-3.5.0-45-generic, linux-image-3.5.0-45-powerpc64-smp, linux-image-3.5.0-45-powerpc-smp, linux-image-3.5.0-45-highbank, linux-image-3.5.0-45-omap, linux
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