CVE-2024-24762

`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

V3 Legend

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/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4	Patch
https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p	Exploit Vendor Advisory
https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74	Product
https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5	Patch
https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238	Broken Link
https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc	Patch
https://github.com/tiangolo/fastapi/releases/tag/0.109.1	Product
https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389	Broken Link

Configurations

Configuration 1 (hide)

cpe:2.3:a:fastapiexpert:python-multipart:*:*:*:*:*:python:*:*

Configuration 2 (hide)

AND

cpe:2.3:a:fastapiexpert:python-multipart:*:*:*:*:*:python:*:*

OR	cpe:2.3:a:encode:starlette::::::python::*
	cpe:2.3:a:tiangolo:fastapi::::::::

History

18 Nov 2024, 20:43

Type	Values Removed	Values Added
CPE	cpe:2.3:a:fastapiexpert:python-multipart:::::::: cpe:2.3:a:encode:starlette::::::::	cpe:2.3:a:fastapiexpert:python-multipart::::::python::* cpe:2.3:a:encode:starlette::::::python::*

14 Nov 2024, 16:25

Type	Values Removed	Values Added
CPE		cpe:2.3:a:fastapiexpert:python-multipart:::::::: cpe:2.3:a:encode:starlette::::::::
References	~~() https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4 -~~	() https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4 - Patch
References	~~() https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p -~~	() https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p - Exploit, Vendor Advisory
References	~~() https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74 -~~	() https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74 - Product
References	~~() https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5 -~~	() https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5 - Patch
References	~~() https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238 -~~	() https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238 - Broken Link
References	~~() https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389 - Exploit, Vendor Advisory~~	() https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389 - Broken Link
First Time		Fastapiexpert python-multipart Fastapiexpert Encode Encode starlette

17 Feb 2024, 02:15

Type	Values Removed	Values Added
Summary	(en) FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.1.	(en) `python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.
References		() https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4 - () https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p - () https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74 - () https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5 - () https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238 -

13 Feb 2024, 00:36

Type	Values Removed	Values Added
References	~~() https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc -~~	() https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc - Patch
References	~~() https://github.com/tiangolo/fastapi/releases/tag/0.109.1 -~~	() https://github.com/tiangolo/fastapi/releases/tag/0.109.1 - Product
References	~~() https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389 -~~	() https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389 - Exploit, Vendor Advisory
First Time		Tiangolo fastapi Tiangolo
CPE		cpe:2.3:a:tiangolo:fastapi::::::::
CWE		CWE-1333

09 Feb 2024, 19:15

Type	Values Removed	Values Added
Summary		(es) FastAPI es un framework web para crear API con Python 3.8+ basado en sugerencias de tipo estándar de Python. Cuando se utilizan datos de formulario, `python-multipart` usa una expresión regular para analizar el encabezado HTTP `Content-Type`, incluidas las opciones. Un atacante podría enviar una opción de "Tipo de contenido" personalizada que es muy difícil de procesar para RegEx, consumiendo recursos de CPU y deteniéndose indefinidamente (minutos o más) mientras se mantiene el bucle de evento principal. Esto significa que el proceso no puede manejar más solicitudes. Es un ReDoS (expresión regular de denegación de servicio), solo se aplica a aquellos que leen datos del formulario usando `python-multipart`. Esta vulnerabilidad ha sido parcheada en la versión 0.109.0.
Summary	(en) FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.0.	(en) FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.1.

05 Feb 2024, 15:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-02-05 15:15

Updated : 2024-11-18 20:43

NVD link : CVE-2024-24762

Mitre link : CVE-2024-24762

CVE.ORG link : CVE-2024-24762

JSON object : View

Products Affected

tiangolo

fastapi

encode

starlette

fastapiexpert

python-multipart

CWE

CWE-1333

Inefficient Regular Expression Complexity

CWE-400

Uncontrolled Resource Consumption

7.5 /10