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Ubuntu Security Notice USN-5180-1

Ubuntu Security Notice USN-5180-1
Posted Dec 8, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5180-1 - It was discovered that Mailman incorrectly handled CSRF tokens. A remote list member or moderator could possibly use their own token to craft an admin request CSRF attack and set a new admin password or make other changes.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2021-44227
SHA-256 | da0f881a0a2ffa5bd63d39d8688be5887892452a4742607d09eea2b5b3eb49cd

Ubuntu Security Notice USN-5180-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5180-1
December 07, 2021

mailman vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS

Summary:

A system hardening measure could be bypassed.

Software Description:
- mailman: Web-based mailing list manager

Details:

It was discovered that Mailman incorrectly handled CSRF tokens. A remote
list member or moderator could possibly use their own token to craft an
admin request CSRF attack and set a new admin password or make other
changes.

Update instructions:

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

Ubuntu 18.04 LTS:
mailman 1:2.1.26-1ubuntu0.6

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

References:
https://ubuntu.com/security/notices/USN-5180-1
CVE-2021-44227

Package Information:
https://launchpad.net/ubuntu/+source/mailman/1:2.1.26-1ubuntu0.6
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