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Ubuntu Security Notice USN-4354-1

Ubuntu Security Notice USN-4354-1
Posted May 11, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4354-1 - It was discovered that Mailman incorrectly handled certain inputs. An attacker could possibly use this issue to inject arbitrary content in the login page.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-12108
MD5 | 345b89f0d31b916d0448b2e2149cf586

Ubuntu Security Notice USN-4354-1

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4354-1
May 11, 2020

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Mailman could be made to inject arbitrary content in the login page
if it received a specially crafted input.

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 issue to inject arbitrary content
in the login page.

Update instructions:

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

Ubuntu 18.04 LTS:
mailman 1:2.1.26-1ubuntu0.2

Ubuntu 16.04 LTS:
mailman 1:2.1.20-1ubuntu0.5

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

References:
https://usn.ubuntu.com/4354-1
CVE-2020-12108

Package Information:
https://launchpad.net/ubuntu/+source/mailman/1:2.1.26-1ubuntu0.2
https://launchpad.net/ubuntu/+source/mailman/1:2.1.20-1ubuntu0.5
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