1. Ubuntu Security Notices
  2. USN-5151-1

USN-5151-1: Mailman vulnerabilities

Publication date

18 November 2021

Overview

Several security issues were fixed in Mailman.

Releases

Packages

  • mailman - Web-based mailing list manager

Details

It was discovered that Mailman incorrectly handled certain URL.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2021-43331)

It was discovered that Mailman incorrectly handled certain inputs.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2021-43332)

It was discovered that Mailman incorrectly handled certain URL.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2021-43331)

It was discovered that Mailman incorrectly handled certain inputs.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2021-43332)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic mailman –  1:2.1.26-1ubuntu0.5
16.04 xenial mailman –  1:2.1.20-1ubuntu0.6+esm2  

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References

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