1. Ubuntu Security Notices
  2. USN-829-1

USN-829-1: Qt vulnerability

Publication date

10 September 2009

Overview

Qt vulnerability

Releases

Packages

Details

It was discovered that Qt did not properly handle certificates with NULL
characters in the Subject Alternative Name field of X.509 certificates. An
attacker could exploit this to perform a machine-in-the-middle attack to view
sensitive information or alter encrypted communications. (CVE-2009-2700)

It was discovered that Qt did not properly handle certificates with NULL
characters in the Subject Alternative Name field of X.509 certificates. An
attacker could exploit this to perform a machine-in-the-middle attack to view
sensitive information or alter encrypted communications. (CVE-2009-2700)

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
9.04 jaunty libqt4-network –  4.5.0-0ubuntu4.2
8.10 intrepid libqt4-network –  4.4.3-0ubuntu1.3
8.04 hardy libqt4-core –  4.3.4-0ubuntu3.1

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References

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