=========================================================================Ubuntu Security Notice USN-3012-1
June 20, 2016

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Wget could be made to overwrite files.

Software Description:
- wget: retrieves files from the web

Details:

Dawid Golunski discovered that Wget incorrectly handled filenames when
being redirected from an HTTP to an FTP URL. A malicious server could
possibly use this issue to overwrite local files.

Update instructions:

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

Ubuntu 16.04 LTS:
  wget                            1.17.1-1ubuntu1.1

Ubuntu 15.10:
  wget                            1.16.1-1ubuntu1.1

Ubuntu 14.04 LTS:
  wget                            1.15-1ubuntu1.14.04.2

Ubuntu 12.04 LTS:
  wget                            1.13.4-2ubuntu1.4

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

References:
  https://ubuntu.com/security/notices/USN-3012-1
  CVE-2016-4971

Package Information:
  https://launchpad.net/ubuntu/+source/wget/1.17.1-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/wget/1.16.1-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/wget/1.15-1ubuntu1.14.04.2
  https://launchpad.net/ubuntu/+source/wget/1.13.4-2ubuntu1.4