USN-2657-1: unattended-upgrades vulnerability

Ubuntu Security Notice USN-2657-1

29th June, 2015

unattended-upgrades vulnerability

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

• Ubuntu 15.04
• Ubuntu 14.10
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

An attacker could trick unattended-upgrades into installing altered packages.

Software description

• unattended-upgrades - automatic installation of security upgrades

Details

It was discovered that unattended-upgrades incorrectly performed
authentication checks in certain configurations. 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 version:

Ubuntu 15.04:

unattended-upgrades 0.83.6ubuntu1

Ubuntu 14.10:

unattended-upgrades 0.82.8ubuntu0.3

Ubuntu 14.04 LTS:

unattended-upgrades 0.82.1ubuntu2.3

Ubuntu 12.04 LTS:

unattended-upgrades 0.76ubuntu1.1

To update your system, please follow these instructions: http://ift.tt/17VXqjU.

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

References

CVE-2015-1330

from Ubuntu Security Notices http://ift.tt/1LQU42O