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Home » Security Advisories» Ubuntu » Linux kernel (Trusty HWE) vulnerability

Linux kernel (Trusty HWE) vulnerability

  • Vendor: Ubuntu
  • Vendor ID: USN-3188-2
  • Date: February 03, 2017


==========================================================================
Ubuntu Security Notice USN-3188-2
February 03, 2017

linux-lts-trusty vulnerability
==========================================================================

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

- Ubuntu 12.04 LTS

Summary:

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

Software Description:
- linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise

Details:

USN-3188-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu
12.04 LTS.

Andrey Konovalov discovered that the SCTP implementation in the Linux
kernel improperly handled validation of incoming data. A remote 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 LTS:
linux-image-3.13.0-108-generic 3.13.0-108.155~precise1
linux-image-3.13.0-108-generic-lpae 3.13.0-108.155~precise1
linux-image-generic-lpae-lts-trusty 3.13.0.108.99
linux-image-generic-lts-trusty 3.13.0.108.99

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:
http://www.ubuntu.com/usn/usn-3188-2
http://www.ubuntu.com/usn/usn-3188-1
CVE-2016-9555

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-108.155~precise1

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