Nathan Wallwork discovered a buffer overflow in heartbeat, a subsystem for High-Availability Linux. A remote attacker could send a specially crafted TCP packet that overflows a buffer, leaving heartbeat to execute arbitrary code as root.
This problem has been fixed in version 0.4.9.0l-7.2 for the current stable distribution (woody) and version 0.4.9.2-1 for the unstable distribution (sid). The old stable distribution (potato) doesn't contain a heartbeat package.
We recommend that you upgrade your heartbeat package immediately if you run internet connected servers that are heartbeat-monitored.
wget url will fetch the file for you dpkg -i file.deb will install the referenced file.
If you are using the apt-get package manager, use the line for sources.list as given below:
apt-get update will update the internal database apt-get upgrade will install corrected packages
You may use an automated update by adding the resources from the footer to the proper configuration.
Debian GNU/Linux 3.0 alias woody --------------------------------