=========================================================================Ubuntu Security Notice USN-3863-1
January 22, 2019

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

An attacker could trick APT into installing altered packages.

Software Description:
- apt: Advanced front-end for dpkg

Details:

Max Justicz discovered that APT incorrectly handled certain parameters
during redirects. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could potentially be used to install
altered packages.

Update instructions:

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

Ubuntu 18.10:
  apt                             1.7.0ubuntu0.1

Ubuntu 18.04 LTS:
  apt                             1.6.6ubuntu0.1

Ubuntu 16.04 LTS:
  apt                             1.2.29ubuntu0.1

Ubuntu 14.04 LTS:
  apt                             1.0.1ubuntu2.19

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

References:
  https://ubuntu.com/security/notices/USN-3863-1
  CVE-2019-3462

Package Information:
  https://launchpad.net/ubuntu/+source/apt/1.7.0ubuntu0.1
  https://launchpad.net/ubuntu/+source/apt/1.6.6ubuntu0.1
  https://launchpad.net/ubuntu/+source/apt/1.2.29ubuntu0.1
  https://launchpad.net/ubuntu/+source/apt/1.0.1ubuntu2.19