USN-1101-1: Qt vulnerabilities

Publication date

1 April 2011

Overview

qt4-x11 update for fraudulent comodo certificates


Packages

  • qt4-x11 - Qt 4 core non-GUI functionality runtime library

Details

It was discovered that several invalid HTTPS certificates were issued and
revoked. An attacker could exploit these to perform a machine-in-the-middle
attack to view sensitive information or alter encrypted communications.
These were placed on the certificate blocklist to prevent their misuse.

It was discovered that several invalid HTTPS certificates were issued and
revoked. An attacker could exploit these to perform a machine-in-the-middle
attack to view sensitive information or alter encrypted communications.
These were placed on the certificate blocklist to prevent their misuse.

Update instructions

After a standard system upgrade you need to restart your session to effect 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
9.10 karmic libqt4-network –  4.5.3really4.5.2-0ubuntu1.1
8.04 hardy libqt4-core –  4.3.4-0ubuntu3.2
10.10 maverick libqt4-network –  4:4.7.0-0ubuntu4.3
10.04 lucid libqt4-network –  4:4.6.2-0ubuntu5.2

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