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==========================================================================
Ubuntu Security Notice USN-2283-1
July 16, 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:

Sasha Levin reported a flaw in the Linux kernel's point-to-point protocol
(PPP) when used with the Layer Two Tunneling Protocol (L2TP). A local user
could exploit this flaw to gain administrative privileges. (CVE-2014-4943)

Michael S. Tsirkin discovered an information leak in the Linux kernel's
segmentation of skbs when using the zerocopy feature of vhost-net. A local
attacker could exploit this flaw to gain potentially sensitive information
from kernel memory. (CVE-2014-0131)

Don Bailey discovered a flaw in the LZO decompress algorithm used by the
Linux kernel. An attacker could exploit this flaw to cause a denial of
service (memory corruption or OOPS). (CVE-2014-4608)

Update instructions:

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-67-generic    3.2.0-67.101
  linux-image-3.2.0-67-generic-pae  3.2.0-67.101
  linux-image-3.2.0-67-highbank   3.2.0-67.101
  linux-image-3.2.0-67-omap       3.2.0-67.101
  linux-image-3.2.0-67-powerpc-smp  3.2.0-67.101
  linux-image-3.2.0-67-powerpc64-smp  3.2.0-67.101
  linux-image-3.2.0-67-virtual    3.2.0-67.101

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-2283-1
  CVE-2014-0131, CVE-2014-4608, CVE-2014-4943

Package Information:
  https://launchpad.net/ubuntu/+source/linux/3.2.0-67.101



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