CVE-2019-20925

Denial of service via malformed network packet

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An unauthenticated client can trigger denial of service by issuing specially crafted wire protocol messages, which cause the message decompressor to incorrectly allocate memory. This issue affects MongoDB Server v4.2 versions prior to 4.2.1; MongoDB Server v4.0 versions prior to 4.0.13; MongoDB Server v3.6 versions prior to 3.6.15 and MongoDB Server v3.4 versions prior to 3.4.24.

Un cliente no autenticado puede desencadenar una denegación de servicio al emitir mensajes de protocolo de cable especialmente diseñados, lo que causa a un descompresor de mensajes asignar memoria de manera incorrecta. Este problema afecta a: MongoDB Server de MongoDB Inc versiones v4.2 anteriores a 4.2.1; versiones v4.0 anteriores a 4.0.13; versiones v3.6 anteriores a 3.6.15; versiones v3.4 anteriores a 3.4.24

It was discovered that MongoDB incorrectly handled certain wire protocol messages. A remote attacker could possibly use this issue to cause MongoDB to crash, resulting in a denial of service.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-06 CVE Reserved
2020-11-24 CVE Published
2024-09-16 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-697: Incorrect Comparison
CWE-839: Numeric Range Comparison Without Minimum Check

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://jira.mongodb.org/browse/SERVER-43751	2024-01-23

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mongodb Search vendor "Mongodb"		Mongodb Search vendor "Mongodb" for product "Mongodb"				>= 3.4.0 < 3.4.24 Search vendor "Mongodb" for product "Mongodb" and version " >= 3.4.0 < 3.4.24"		-		Affected
Mongodb Search vendor "Mongodb"		Mongodb Search vendor "Mongodb" for product "Mongodb"				>= 3.6.0 < 3.6.15 Search vendor "Mongodb" for product "Mongodb" and version " >= 3.6.0 < 3.6.15"		-		Affected
Mongodb Search vendor "Mongodb"		Mongodb Search vendor "Mongodb" for product "Mongodb"				>= 4.0.0 < 4.0.13 Search vendor "Mongodb" for product "Mongodb" and version " >= 4.0.0 < 4.0.13"		-		Affected
Mongodb Search vendor "Mongodb"		Mongodb Search vendor "Mongodb" for product "Mongodb"				>= 4.2.0 < 4.2.1 Search vendor "Mongodb" for product "Mongodb" and version " >= 4.2.0 < 4.2.1"		-		Affected