PT-2023-8127

Name of the Vulnerable Software and Affected Versions Postfix versions 3.5.23 through 3.8.5 Postfix versions prior to 3.9 Description The issue is related to insufficient validation of line endings in the Postfix smtpd daemon, allowing remote attackers to bypass security restrictions and perform...

Python: SMTP proxy RFC 2821 module DoS (uncaught exception) (Issue #9129)

Multiple race conditions in smtpd.py in the smtpd module in Python 2.6, 2.7, 3.1, and 3.2 alpha allow remote attackers to cause a denial of service daemon outage by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None...