CVE-2024-49767

Werkzeug is a Web Server Gateway Interface web application library. Applications using `werkzeug.formparser.MultiPartParser` corresponding to a version of Werkzeug prior to 3.0.6 to parse `multipart/form-data` requests (e.g. all flask applications) are vulnerable to a relatively simple but effective resource exhaustion (denial of service) attack. A specifically crafted form submission request can cause the parser to allocate and block 3 to 8 times the upload size in main memory. There is no upper limit; a single upload at 1 Gbit/s can exhaust 32 GB of RAM in less than 60 seconds. Werkzeug version 3.0.6 fixes this issue.

CVSS v3 7.5 HIGH

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

References

Link	Resource
https://github.com/pallets/quart/commit/5e78c4169b8eb66b91ead3e62d44721b9e1644ee	Patch
https://github.com/pallets/quart/commit/abb04a512496206de279225340ed022852fbf51f
https://github.com/pallets/werkzeug/commit/50cfeebcb0727e18cc52ffbeb125f4a66551179b	Patch
https://github.com/pallets/werkzeug/releases/tag/3.0.6	Release Notes
https://github.com/pallets/werkzeug/security/advisories/GHSA-q34m-jh98-gwm2	Vendor Advisory
https://security.netapp.com/advisory/ntap-20250103-0007/

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:palletsprojects:quart::::::python::*
	cpe:2.3:a:palletsprojects:werkzeug::::::::

History

03 Jan 2025, 12:15

Type	Values Removed	Values Added
References		() https://security.netapp.com/advisory/ntap-20250103-0007/ -

27 Dec 2024, 21:15

Type	Values Removed	Values Added
References		() https://github.com/pallets/quart/commit/abb04a512496206de279225340ed022852fbf51f -

Information

Published : 2024-10-25 20:15

Updated : 2025-01-03 12:15

NVD link : CVE-2024-49767

Mitre link : CVE-2024-49767

CVE.ORG link : CVE-2024-49767

JSON object : View

Products Affected

palletsprojects

quart
werkzeug

CWE

CWE-400

Uncontrolled Resource Consumption

CWE-770

Allocation of Resources Without Limits or Throttling

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Applications using `werkzeug.formparser.MultiPartParser` corresponding to a version of Werkzeug prior to 3.0.6 to parse `multipart/form-data` requests (e.g. all flask applications) are vulnerable to a relatively simple but effective resource exhaustion (denial of service) attack. A specifically crafted form submission request can cause the parser to allocate and block 3 to 8 times the upload size in main memory. There is no upper limit; a single upload at 1 Gbit/s can exhaust 32 GB of RAM in less than 60 seconds. Werkzeug version 3.0.6 fixes this issue."}, {"lang": "es", "value": "Werkzeug es una librer\u00eda de aplicaciones web de interfaz de puerta de enlace de servidor web. Las aplicaciones que utilizan `werkzeug.formparser.MultiPartParser` correspondiente a una versi\u00f3n de Werkzeug anterior a la 3.0.6 para analizar solicitudes `multipart/form-data` (por ejemplo, todas las aplicaciones Flask) son vulnerables a un ataque de agotamiento de recursos (denegaci\u00f3n de servicio) relativamente simple pero efectivo. Una solicitud de env\u00edo de formulario manipulada espec\u00edficamente puede hacer que el analizador asigne y bloquee de 3 a 8 veces el tama\u00f1o de carga en la memoria principal. No hay un l\u00edmite superior; una sola carga a 1 Gbit/s puede agotar 32 GB de RAM en menos de 60 segundos. 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