08/13/2006:

We have discovered a remote denial of service vulnerability in heartbeat, and also
a potential local denial of service vulnerability.

Upgrading to 2.0.7 or 1.2.5 is recommended at your earliest convenience.
If this is not possible in the short term, it is recommended that you keep attackers
of your heartbeat networks through either physical separation or firewalls.

    - Remote Denial of Service attack (#195068, CVE-2006-3121).
    - Local Denial of Service attack (#194444, CVE-2006-3815).
	(this one was actually fixed in 2.0.6)