USN-1131-1: Postfix vulnerability

Publication date

11 May 2011

Overview

An attacker could send crafted input to Postfix and cause it to crash or run programs.


Packages

  • postfix - High-performance mail transport agent

Details

Thomas Jarosch discovered that Postfix incorrectly handled authentication
mechanisms other than PLAIN and LOGIN when the Cyrus SASL library is used.
A remote attacker could use this to cause Postfix to crash, leading to a
denial of service, or possibly execute arbitrary code as the postfix user.

Thomas Jarosch discovered that Postfix incorrectly handled authentication
mechanisms other than PLAIN and LOGIN when the Cyrus SASL library is used.
A remote attacker could use this to cause Postfix to crash, leading to a
denial of service, or possibly execute arbitrary code as the postfix user.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
8.04 hardy postfix –  2.5.1-2ubuntu1.4
6.06 dapper postfix –  2.2.10-1ubuntu0.4
11.04 natty postfix –  2.8.2-1ubuntu2.1
10.10 maverick postfix –  2.7.1-1ubuntu0.2
10.04 lucid postfix –  2.7.0-1ubuntu0.2

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