USN-4348-1: Mailman vulnerabilities

29 April 2020

mailman vulnerabilities

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

  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in Mailman.

Software Description

  • mailman - Web-based mailing list manager (legacy branch)

Details

It was discovered that Mailman incorrectly handled certain inputs. An attacker could possibly use this to issue execute arbitrary scripts or HTML. (CVE-2018-0618)

It was discovered that Mailman incorrectly handled certain inputs. An attacker could possibly use this issue to display arbitrary text on a web page. (CVE-2018-13796)

It was discovered that Mailman incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-12137)

Update instructions

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

Ubuntu 18.04 LTS
mailman - 1:2.1.26-1ubuntu0.1
Ubuntu 16.04 LTS
mailman - 1:2.1.20-1ubuntu0.4

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