USN-829-1: Qt vulnerability

Releases

• Ubuntu 9.04
• Ubuntu 8.10
• Ubuntu 8.04

Packages

• qt4-x11 -

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)

Update instructions

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

Ubuntu 9.04

• libqt4-network - 4.5.0-0ubuntu4.2

Ubuntu 8.10

• libqt4-network - 4.4.3-0ubuntu1.3

Ubuntu 8.04

• libqt4-core - 4.3.4-0ubuntu3.1

After a standard system upgrade you need to restart your session to effect
the necessary changes.

References

• CVE-2009-2700