Articles / Ubuntu: New APT packages fi…

Ubuntu: New APT packages fix security vulnerabilities

Simon Ruderich discovered that APT incorrectly handled repositories that use InRelease files. The default Ubuntu repositories do not use InRelease files, so this issue only affected third-party repositories. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered packages. Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1385-1
March 06, 2012

apt vulnerability
==========================================================================

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

- Ubuntu 11.10
- Ubuntu 11.04

Summary:

An attacker could trick APT into installing altered packages.

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

Details:

Simon Ruderich discovered that APT incorrectly handled repositories that
use InRelease files. The default Ubuntu repositories do not use InRelease
files, so this issue only affected third-party repositories. 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 11.10:
 apt                             0.8.16~exp5ubuntu13.2

Ubuntu 11.04:
 apt                             0.8.13.2ubuntu4.4

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

References:
 http://www.ubuntu.com/usn/usn-1385-1
 CVE-2012-0214

Package Information:
 https://launchpad.net/ubuntu/+source/apt/0.8.16~exp5ubuntu13.2
 https://launchpad.net/ubuntu/+source/apt/0.8.13.2ubuntu4.4
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