CVE-2018-20803 : A user authorized to perform database queries may trigger denial of service by i

A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries, which loop indefinitely in mathematics processing while retaining locks. This issue affects MongoDB Server v4.0 versions prior to 4.0.5; MongoDB Server v3.6 versions prior to 3.6.10 and MongoDB Server v3.4 versions prior to 3.4.19.

Published 2020-11-23 18:15:11

Updated 2024-09-16 21:15:31

Source MongoDB, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2018-20803

Mongodb » Mongodb
Versions from including (>=) 3.4.0 and before (<) 3.4.19
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
Matching versions
Mongodb » Mongodb
Versions from including (>=) 3.6.0 and before (<) 3.6.10
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
Matching versions
Mongodb » Mongodb
Versions from including (>=) 4.0.0 and before (<) 4.0.5
cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2018-20803

Top countries where our scanners detected CVE-2018-20803

Top open port discovered on systems with this issue 27017

IPs affected by CVE-2018-20803 5,066

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2018-20803!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2018-20803

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 28 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-20803

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:N/A:P	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	2.8	3.6	MongoDB, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2018-20803

CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
Assigned by:
- cna@mongodb.com (Secondary)
- nvd@nist.gov (Primary)

References for CVE-2018-20803

https://jira.mongodb.org/browse/SERVER-38070

[SERVER-38070] Infinite loop in aggregation expression - MongoDB
Issue Tracking;Patch;Vendor Advisory