Synopsis
The remote mail server is affected by a memory corruption vulnerability.
Description
The Postfix mail server listening on this port appears vulnerable to a memory corruption attack as Nessus was able to crash an SMTP session with this host by using two different authentication methods in one session.
Note that code execution as the unprivileged postfix user may also be possible.
Solution
Upgrade to Postfix 2.5.13 / 2.6.19 / 2.7.4 / 2.8.3 or later.