USN-3150-1: Linux kernel vulnerability

Ubuntu Security Notice USN-3150-1

5th December, 2016

linux vulnerability

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

• Ubuntu 12.04 LTS

Summary

The system could be made to crash or run programs as an administrator.

Software description

• linux - Linux kernel

Details

Philip Pettersson discovered a race condition in the af_packet
implementation in the Linux kernel. A local unprivileged attacker could use
this to cause a denial of service (system crash) or run arbitrary code with
administrative privileges.

Update instructions

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

Ubuntu 12.04 LTS:

linux-image-3.2.0-118-powerpc-smp 3.2.0-118.161

linux-image-powerpc-smp 3.2.0.118.133

linux-image-3.2.0-118-highbank 3.2.0-118.161

linux-image-3.2.0-118-powerpc64-smp 3.2.0-118.161

linux-image-3.2.0-118-virtual 3.2.0-118.161

linux-image-3.2.0-118-generic-pae 3.2.0-118.161

linux-image-3.2.0-118-generic 3.2.0-118.161

linux-image-generic-pae 3.2.0.118.133

linux-image-highbank 3.2.0.118.133

linux-image-3.2.0-118-omap 3.2.0-118.161

linux-image-virtual 3.2.0.118.133

linux-image-powerpc64-smp 3.2.0.118.133

linux-image-generic 3.2.0.118.133

linux-image-omap 3.2.0.118.133

To update your system, please follow these instructions: http://ift.tt/17VXqjU.

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

CVE-2016-8655

from Ubuntu Security Notices http://ift.tt/2gWrG6v