Ubuntu Security Notices
USN-4348-1

USN-4348-1: Mailman vulnerabilities

Publication date

29 April 2020

Overview

Several security issues were fixed in Mailman.

Releases

18.04 LTS 16.04 LTS

Packages

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)

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

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 – 1:2.1.26-1ubuntu0.1
16.04 xenial	mailman – 1:2.1.20-1ubuntu0.4

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References

USN-5121-2

USN-5121-2