CVE-2018-20805: Invariant with $elemMatch
First published: Mon Nov 23 2020(Updated: )
A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries, which perform an $elemMatch . This issue affects MongoDB Server v4.0 versions prior to 4.0.5 and MongoDB Server v3.6 versions prior to 3.6.10.
Credit: cna@mongodb.com cna@mongodb.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MongoDB MongoDB | >=3.6.0<3.6.10 | |
| MongoDB MongoDB | >=4.0.0<4.0.5 |
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Reference Links
Frequently Asked Questions
What is CVE-2018-20805?
CVE-2018-20805 is a vulnerability that allows a user with database query privileges to cause denial of service by executing specially crafted queries.
Which versions of MongoDB Server are affected by CVE-2018-20805?
MongoDB Server v4.0 versions prior to 4.0.5 and v3.6 versions prior to 3.6.10 are affected by CVE-2018-20805.
How can an attacker exploit CVE-2018-20805?
An attacker can exploit CVE-2018-20805 by issuing specially crafted queries that perform an $elemMatch operation.
What is the severity of CVE-2018-20805?
CVE-2018-20805 has a severity rating of medium with a CVSS score of 6.5.
Is there a fix available for CVE-2018-20805?
Yes, MongoDB Inc. released fixes for CVE-2018-20805 in MongoDB Server versions 4.0.5 and 3.6.10.
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