Ubuntu 11.10 USN-1284-2 Moderate: Update Manager Regression Issue

ubuntu

February 16, 2012

USN-1284-1 introduced a regression in Update Manager.

Summary

USN-1284-1 introduced a regression in Update Manager.

Software Description:

- update-manager: GNOME application that manages apt updates

Details:

USN-1284-1 fixed vulnerabilities in Update Manager. One of the fixes

introduced a regression for Kubuntu users attempting to upgrade to a newer

Ubuntu release. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

David Black discovered that Update Manager incorrectly extracted the

downloaded upgrade tarball before verifying its GPG signature. If a remote

attacker were able to perform a man-in-the-middle attack, this flaw could

potentially be used to replace arbitrary files. (CVE-2011-3152)

David Black discovered that Update Manager created a temporary directory

in an insecure fashion. A local attacker could possibly use this flaw to

read the XAUTHORITY file of the user performing the upgrade.

(CVE-2011-3154)

This update also adds a hotfix to Update Notif...

Read the Full Advisory

Topics Covered

security advisory moderate bug fix update instructions ubuntu regression update-manager

Update Instructions

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

Ubuntu 11.10:
  update-manager-core             1:0.152.25.8

Ubuntu 11.04:
  update-manager-core             1:0.150.5.2

Ubuntu 10.10:
  update-manager-core             1:0.142.23.2

Ubuntu 10.04 LTS:
  update-manager-core             1:0.134.11.2

Ubuntu 8.04 LTS:
  update-manager-core             1:0.87.33

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