CWE
116 117
Advisory Published
Updated

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

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 SoftwareAffected VersionHow 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

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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.

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