1. Ubuntu Security Notices
  2. USN-3264-1

USN-3264-1: Linux kernel vulnerability

Publication date

24 April 2017

Overview

The system could be made to crash under certain conditions.

Releases

Packages

Details

Alexander Popov discovered that a race condition existed in the Stream
Control Transmission Protocol (SCTP) implementation in the Linux kernel. A
local attacker could use this to cause a denial of service (system crash).

Alexander Popov discovered that a race condition existed in the Stream
Control Transmission Protocol (SCTP) implementation in the Linux kernel. A
local attacker could use this to cause a denial of service (system crash).

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release Package Version
14.04 trusty linux-image-3.13.0-117-generic –  3.13.0-117.164
linux-image-3.13.0-117-generic-lpae –  3.13.0-117.164
linux-image-3.13.0-117-lowlatency –  3.13.0-117.164
linux-image-3.13.0-117-powerpc-e500 –  3.13.0-117.164
linux-image-3.13.0-117-powerpc-e500mc –  3.13.0-117.164
linux-image-3.13.0-117-powerpc-smp –  3.13.0-117.164
linux-image-3.13.0-117-powerpc64-smp –  3.13.0-117.164

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References

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