National Vulnerability Database

National Vulnerability Database

National Vulnerability

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Search Parameters:
  • Contains Software Flaws (CVE)
  • CPE Product Version: cpe:/a:postfix:postfix:2.6
There are 3 matching records.
Vuln ID Summary CVSS Severity

The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.

Published: May 13, 2011; 01:05:43 PM -04:00
V2: 6.8 MEDIUM

The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack.

Published: March 16, 2011; 06:55:02 PM -04:00
V2: 6.8 MEDIUM

Postfix 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with the Linux 2.6 kernel, leaks epoll file descriptors during execution of "non-Postfix" commands, which allows local users to cause a denial of service (application slowdown or exit) via a crafted command, as demonstrated by a command in a .forward file.

Published: September 12, 2008; 12:56:20 PM -04:00
V2: 2.1 LOW