[USN-3423-1] Linux kernel vulnerability

[Steve Beattie]

==========================================================================
Ubuntu Security Notice USN-3423-1
September 18, 2017

linux vulnerability
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

The system could be made to crash if it received specially crafted
bluetooth traffic.

Software Description:
- linux: Linux kernel

Details:

It was discovered that a buffer overflow existed in the Bluetooth stack of
the Linux kernel when handling L2CAP configuration responses. A physically
proximate attacker could use this to cause a denial of service (system
crash).

Update instructions:

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

Ubuntu 12.04 ESM:
  linux-image-3.2.0-131-generic   3.2.0-131.177
  linux-image-3.2.0-131-generic-pae  3.2.0-131.177
  linux-image-3.2.0-131-highbank  3.2.0-131.177
  linux-image-3.2.0-131-omap      3.2.0-131.177
  linux-image-3.2.0-131-powerpc-smp  3.2.0-131.177
  linux-image-3.2.0-131-powerpc64-smp  3.2.0-131.177
  linux-image-3.2.0-131-virtual   3.2.0-131.177
  linux-image-generic             3.2.0.131.145
  linux-image-generic-pae         3.2.0.131.145
  linux-image-highbank            3.2.0.131.145
  linux-image-omap                3.2.0.131.145
  linux-image-powerpc-smp         3.2.0.131.145
  linux-image-powerpc64-smp       3.2.0.131.145
  linux-image-virtual             3.2.0.131.145

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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  https://www.ubuntu.com/usn/usn-3423-1
  CVE-2017-1000251

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