A MongoDB security update has been released for Ubuntu Linux 18.04 LTS and 20.04 LTS.

USN-5052-1: MongoDB vulnerability

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Ubuntu Security Notice USN-5052-1
August 26, 2021

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

MongoDB could provide unintended access.

Software Description:
- mongodb: Document-oriented database

Details:

MongoDB would fail to properly invalidate existing sessions for deleted
users. This could allow a remote authenticated attacker to gain elevated
privileges if their user account was recreated with elevated privileges.

Update instructions:

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

Ubuntu 20.04 LTS:
mongodb-clients 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2
mongodb-server 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2
mongodb-server-core 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2

Ubuntu 18.04 LTS:
mongodb-clients 1:3.6.3-0ubuntu1.3
mongodb-server 1:3.6.3-0ubuntu1.3
mongodb-server-core 1:3.6.3-0ubuntu1.3

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

References:
  https://ubuntu.com/security/notices/USN-5052-1
CVE-2019-2386

Package Information:
  https://launchpad.net/ubuntu/+source/mongodb/1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2
  https://launchpad.net/ubuntu/+source/mongodb/1:3.6.3-0ubuntu1.3