CVE-2021-33175

EMQ X Broker versions prior to 4.2.8 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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://www.synopsys.com/blogs/software-security/cyrc-advisory-rabbitmq-emqx-vernemq	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:emqx:emq_x_broker:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-06-08 15:15

Updated : 2021-06-16 14:08

NVD link : CVE-2021-33175

Mitre link : CVE-2021-33175

CVE.ORG link : CVE-2021-33175

JSON object : View

Products Affected

emqx

emq_x_broker

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

CWE-502

Deserialization of Untrusted Data

{"id": "CVE-2021-33175", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-06-08T15:15:07.900", "references": [{"url": "https://www.synopsys.com/blogs/software-security/cyrc-advisory-rabbitmq-emqx-vernemq", "tags": ["Patch", "Third Party Advisory"], "source": "disclosure@synopsys.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-770"}]}, {"type": "Secondary", "source": "disclosure@synopsys.com", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "EMQ X Broker versions prior to 4.2.8 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."}, {"lang": "es", "value": "EMQ X Broker versiones anteriores a 4.2.8, son vulnerables a un ataque de denegaci\u00f3n de servicio como resultado del consumo excesivo de memoria debido al manejo de entradas no confiables. Estas entradas causan que el broker de mensajes consuma grandes cantidades de memoria, resultando en que la aplicaci\u00f3n sea terminada por el sistema operativo"}], "lastModified": "2021-06-16T14:08:48.173", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:emqx:emq_x_broker:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A8F29473-EDF2-4781-8187-9FE19377125B", "versionEndExcluding": "4.2.8"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@synopsys.com"}