What is CVE-2021-20333?

CVE-2021-20333 is a vulnerability in MongoDB Server that allows for the generation of artificial log entries or log entries to be split when specially crafted commands are sent.

What is the severity of CVE-2021-20333?

CVE-2021-20333 has a severity rating of 5.3, which is considered medium.

How can I fix CVE-2021-20333?

To fix CVE-2021-20333, update MongoDB Server to v3.6.20, v4.0.21, or v4.2.10 or later versions.

Where can I find more information about CVE-2021-20333?

You can find more information about CVE-2021-20333 in the MongoDB Jira issue: SERVER-50605.

Vulnerability/
CVE-2021-20333

medium

5.3

CWE

116 117

23/7/2021

23/1/2024

CVE-2021-20333: Server log entry spoofing via newline injection

Q: Which versions of MongoDB Server are affected by CVE-2021-20333?

MongoDB Server v3.6 versions prior to 3.6.20, MongoDB Server v4.0 versions prior to 4.0.21, and MongoDB Server v4.2 versions prior to 4.2.10 are affected.

First published: Fri Jul 23 2021(Updated: )

Sending specially crafted commands to a MongoDB Server may result in artificial log entries being generated or for log entries to be split. This issue affects MongoDB Server v3.6 versions prior to 3.6.20; MongoDB Server v4.0 versions prior to 4.0.21 and MongoDB Server v4.2 versions prior to 4.2.10.

Credit: cna@mongodb.com cna@mongodb.com

Affected Software	Affected Version	How to fix
MongoDB MongoDB	>=3.6.0<3.6.20
MongoDB MongoDB	>=4.0.0<4.0.21
MongoDB MongoDB	>=4.2.0<4.2.10

Remedy

https://jira.mongodb.org/browse/SERVER-50605

Never miss a vulnerability like this again

Reference Links

https://jira.mongodb.org/browse/SERVER-50605

Frequently Asked Questions

What is CVE-2021-20333?
CVE-2021-20333 is a vulnerability in MongoDB Server that allows for the generation of artificial log entries or log entries to be split when specially crafted commands are sent.
Which versions of MongoDB Server are affected by CVE-2021-20333?
MongoDB Server v3.6 versions prior to 3.6.20, MongoDB Server v4.0 versions prior to 4.0.21, and MongoDB Server v4.2 versions prior to 4.2.10 are affected.
What is the severity of CVE-2021-20333?
CVE-2021-20333 has a severity rating of 5.3, which is considered medium.
How can I fix CVE-2021-20333?
To fix CVE-2021-20333, update MongoDB Server to v3.6.20, v4.0.21, or v4.2.10 or later versions.
Where can I find more information about CVE-2021-20333?
You can find more information about CVE-2021-20333 in the MongoDB Jira issue: SERVER-50605.

agent/weakness
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collector/nvd-api
source/NVD
agent/software-canonical-lookup
agent/software-canonical-lookup-request
collector/nvd-index
vendor/mongodb
canonical/mongodb mongodb
version/mongodb mongodb/3.6.0
version/mongodb mongodb/4.0.0
version/mongodb mongodb/4.2.0

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