USN-3118-1: Mailman vulnerabilities

Releases

• Ubuntu 16.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• 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

• mailman - 1:2.1.20-1ubuntu0.1

Ubuntu 14.04

• mailman - 1:2.1.16-2ubuntu0.2

Ubuntu 12.04

• mailman - 1:2.1.14-3ubuntu0.4

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

References

• CVE-2016-6893
• CVE-2016-7123