USN-267-1: mailman vulnerability

4 April 2006

mailman vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 5.10
  • Ubuntu 5.04
  • Ubuntu 4.10

Software Description


A remote Denial of Service vulnerability was discovered in the decoder for multipart messages. Certain parts of type “message/delivery-status” or parts containing only two blank lines triggered an exception. An attacker could exploit this to crash Mailman by sending a specially crafted email to a mailing list.

Update instructions

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

Ubuntu 5.10
Ubuntu 5.04
Ubuntu 4.10

To update your system, please follow these instructions: