USN-3118-1: Mailman vulnerabilities

1 November 2016

mailman vulnerabilities

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

  • Ubuntu 16.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

Several security issues were fixed in Mailman.

Software Description

  • mailman - Powerful, web-based mailing list manager

Details

It was discovered that the Mailman administrative web interface did not protect against cross-site request forgery (CSRF) attacks. If an authenticated user were tricked into visiting a malicious website while logged into Mailman, a remote attacker could perform administrative actions. This issue only affected Ubuntu 12.04 LTS. (CVE-2016-7123)

Nishant Agarwala discovered that the Mailman user options page did not protect against cross-site request forgery (CSRF) attacks. If an authenticated user were tricked into visiting a malicious website while logged into Mailman, a remote attacker could modify user options. (CVE-2016-6893)

Update instructions

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

Ubuntu 16.10
mailman - 1:2.1.22-1ubuntu0.1
Ubuntu 16.04 LTS
mailman - 1:2.1.20-1ubuntu0.1
Ubuntu 14.04 LTS
mailman - 1:2.1.16-2ubuntu0.2
Ubuntu 12.04 LTS
mailman - 1:2.1.14-3ubuntu0.4

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References