1. Ubuntu Security Notices
  2. USN-2657-1

USN-2657-1: unattended-upgrades vulnerability

Publication date

29 June 2015

Overview

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

Releases

Packages

Details

It was discovered that unattended-upgrades incorrectly performed
authentication checks in certain configurations. If a remote attacker were
able to perform a machine-in-the-middle attack, this flaw could potentially be
used to install altered packages.

It was discovered that unattended-upgrades incorrectly performed
authentication checks in certain configurations. If a remote attacker were
able to perform a machine-in-the-middle attack, this flaw could potentially be
used to install altered packages.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
15.04 vivid unattended-upgrades –  0.83.6ubuntu1
14.10 utopic unattended-upgrades –  0.82.8ubuntu0.3
14.04 trusty unattended-upgrades –  0.82.1ubuntu2.3
12.04 precise unattended-upgrades –  0.76ubuntu1.1

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References

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