USN-345-1: mailman vulnerabilities

13 September 2006

mailman vulnerabilities

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

  • Ubuntu 6.06 LTS
  • Ubuntu 5.10
  • Ubuntu 5.04

Software Description


Steve Alexander discovered that mailman did not properly handle attachments with special filenames. A remote user could exploit that to stop mail delivery until the server administrator manually cleaned these posts. (CVE-2006-2941)

Various cross-site scripting vulnerabilities have been reported by Barry Warsaw. By using specially crafted email addresses, names, and similar arbitrary user-defined strings, a remote attacker could exploit this to run web script code in the list administrator’s web browser. (CVE-2006-3636)

URLs logged to the error log file are now checked for invalid characters. Before, specially crafted URLs could inject arbitrary messages into the log.

Update instructions

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

Ubuntu 6.06 LTS
mailman - 2.1.5-9ubuntu4.1
Ubuntu 5.10
mailman - 2.1.5-8ubuntu2.3
Ubuntu 5.04
mailman - 2.1.5-7ubuntu0.3

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the necessary changes.