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==========================================================================
Ubuntu Security Notice USN-1833-1
May 24, 2013

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:

Andy Lutomirski discover an error in the Linux kernel's credential handling
on unix sockets. A local user could exploit this flaw to gain
administrative privileges. (CVE-2013-1979)

A buffer overflow vulnerability was discovered in the Broadcom tg3 ethernet
driver for the Linux kernel. A local user could exploit this flaw to cause
a denial of service (crash the system) or potentially escalate privileges
on the system. (CVE-2013-1929)

A flaw was discovered in the Linux kernel's ftrace subsystem interface. A
local user could exploit this flaw to cause a denial of service (system
crash). (CVE-2013-3301)

Update instructions:

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-44-generic    3.2.0-44.69
  linux-image-3.2.0-44-generic-pae  3.2.0-44.69
  linux-image-3.2.0-44-highbank   3.2.0-44.69
  linux-image-3.2.0-44-omap       3.2.0-44.69
  linux-image-3.2.0-44-powerpc-smp  3.2.0-44.69
  linux-image-3.2.0-44-powerpc64-smp  3.2.0-44.69
  linux-image-3.2.0-44-virtual    3.2.0-44.69

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-1833-1
  CVE-2013-1929, CVE-2013-1979, CVE-2013-3301

Package Information:
  https://launchpad.net/ubuntu/+source/linux/3.2.0-44.69


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