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Ubuntu 11.10 & 11.04 Advisory USN-1385-1 Critical: APT Installation Flaw

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Calendar Grey March 6, 2012
Scroller Ubuntu
Ubuntu Security Notice USN-1385-2 addresses a vulnerability in the APT package management system that permits tampering with installed software.
An attacker could trick APT into installing altered packages.

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.

Topics%20covered

Topics Covered

security advisory critical Ubuntu man-in-the-middle apt installation flaw

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

https://ubuntu.com/security/notices/USN-1385-1

CVE-2012-0214

Severity
critical
Lowest
Low
Medium
High
Critical

March 06, 2012

Topics%20covered

Topics Covered

security advisory critical Ubuntu man-in-the-middle apt installation flaw

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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