=========================================================================Ubuntu Security Notice USN-3585-1
March 05, 2018

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

- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Twisted could be made to run programs if it received specially crafted
network traffic.

Software Description:
- twisted: Event-based framework for internet applications

Details:

It was discovered that Twisted incorrectly handled certain HTTP
requests. An attacker could possibly use this issue to execute
arbitrary code.

Update instructions:

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

Ubuntu 16.04 LTS:
  python-twisted                  16.0.0-1ubuntu0.2
  python-twisted-bin              16.0.0-1ubuntu0.2
  python-twisted-web              16.0.0-1ubuntu0.2
  python3-twisted                 16.0.0-1ubuntu0.2

Ubuntu 14.04 LTS:
  python-twisted                  13.2.0-1ubuntu1.2
  python-twisted-bin              13.2.0-1ubuntu1.2
  python-twisted-web              13.2.0-1ubuntu1.2

In general, a standard system update will make all the necessary
changes.

References:
  https://ubuntu.com/security/notices/USN-3585-1
  CVE-2016-1000111

Package Information:
  https://launchpad.net/ubuntu/+source/twisted/16.0.0-1ubuntu0.2
  https://launchpad.net/ubuntu/+source/twisted/13.2.0-1ubuntu1.2