Package : postfix Vulnerability : denial of service, bounce-scanning Problem-Type : remote Debian-specific: no CVE Ids : CAN-2003-0468, CAN-2003-0540
The postfix mail transport agent in Debian 3.0 contains two vulnerabilities:
CAN-2003-0468: Postfix would allow an attacker to bounce-scan private networks or use the daemon as a DDoS tool by forcing the daemon to connect to an arbitrary service at an arbitrary IP address and either receiving a bounce message or observing queue operations to infer the status of the delivery attempt.
CAN-2003-0540: a malformed envelope address can 1) cause the queue manager to lock up until an entry is removed from the queue and 2) lock up the smtp listener leading to a denial of service
For the current stable distribution (woody) these problems have been fixed in version 1.1.11-0.woody3.
For the unstable distribution (sid) these problems will be fixed soon.
We recommend that you update your postfix package.
Upgrade Instructions --------------------
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 --------------------------------