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==========================================================================
Ubuntu Security Notice USN-2356-1
September 23, 2014

linux vulnerabilities
==========================================================================

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

- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Jack Morgenstein reported a flaw in the page handling of the KVM (Kerenl
Virtual Machine) subsystem in the Linux kernel. A guest OS user could
exploit this flaw to cause a denial of service (host OS memory corruption)
or possibly have other unspecified impact on the host OS. (CVE-2014-3601)

Chris Evans reported an flaw in the Linux kernel's handling of iso9660
(compact disk filesystem) images. An attacker who can mount a custom
iso9660 image either via a CD/DVD drive or a loopback mount could cause a
denial of service (system crash or reboot). (CVE-2014-5471)

Chris Evans reported an flaw in the Linux kernel's handling of iso9660
(compact disk filesystem) images. An attacker who can mount a custom
iso9660 image, with a self-referential CL entry, either via a CD/DVD drive
or a loopback mount could cause a denial of service (unkillable mount
process). (CVE-2014-5472)

Update instructions:

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-69-generic    3.2.0-69.103
  linux-image-3.2.0-69-generic-pae  3.2.0-69.103
  linux-image-3.2.0-69-highbank   3.2.0-69.103
  linux-image-3.2.0-69-omap       3.2.0-69.103
  linux-image-3.2.0-69-powerpc-smp  3.2.0-69.103
  linux-image-3.2.0-69-powerpc64-smp  3.2.0-69.103
  linux-image-3.2.0-69-virtual    3.2.0-69.103

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:
  http://www.ubuntu.com/usn/usn-2356-1
  CVE-2014-3601, CVE-2014-5471, CVE-2014-5472

Package Information:
  https://launchpad.net/ubuntu/+source/linux/3.2.0-69.103



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