CVE-2021-33176

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

VerneMQ MQTT Broker versions prior to 1.12.0 are vulnerable to a denial of service attack as a result of excessive memory consumption due to the handling of untrusted inputs. These inputs cause the message broker to consume large amounts of memory, resulting in the application being terminated by the operating system.

Overview

CVE ID
CVE-2021-33176

Assigner
disclosure@synopsys.com

Vulnerability Status
Analyzed

Published Version
2021-06-08T15:15:07

Last Modified Date
2021-06-21T13:43:44

Weakness Enumerations

CWE	URL
CWE-770	http://cwe.mitre.org/data/definitions/770.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:octavolabs:vernemq::::::::	1	OR		1.12.0

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://www.synopsys.com/blogs/software-security/cyrc-advisory-rabbitmq-emqx-vernemq	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-33176
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33176

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:10:47				Added to TrackCVE
2022-12-05 03:43:24	2021-06-08T15:15Z	2021-06-08T15:15:07	CVE Published Date	updated
2022-12-05 03:43:24		2021-06-21T13:43:44	CVE Modified Date	updated
2022-12-05 03:43:24		Analyzed	Vulnerability Status	updated