=========================================================================Ubuntu Security Notice USN-2370-1
October 08, 2014

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

- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

APT could be made to overwrite files.

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

Details:

Guillem Jover discovered that APT incorrectly created a temporary file when
handling the changelog command. A local attacker could use this issue to
overwrite arbitrary files. In the default installation of Ubuntu, this
should be prevented by the kernel link restrictions.

Update instructions:

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

Ubuntu 14.04 LTS:
  apt                             1.0.1ubuntu2.5

Ubuntu 12.04 LTS:
  apt                             0.8.16~exp12ubuntu10.21

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

References:
  https://ubuntu.com/security/notices/USN-2370-1
  CVE-2014-7206

Package Information:
  https://launchpad.net/ubuntu/+source/apt/1.0.1ubuntu2.5
  https://launchpad.net/ubuntu/+source/apt/0.8.16~exp12ubuntu10.21