Kludex python-multipart up to 0.0.17 on Python Line Break allocation of resources

Summaryinfo

A vulnerability classified as problematic was found in Kludex python-multipart up to 0.0.17 on Python. Affected by this issue is some unknown functionality of the component Line Break Handler. The manipulation results in allocation of resources. This vulnerability is known as CVE-2024-53981. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in Kludex python-multipart up to 0.0.17 on Python. Affected is an unknown function of the component Line Break Handler. The manipulation with an unknown input leads to a allocation of resources vulnerability. CWE is classifying the issue as CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. This is going to have an impact on availability. CVE summarizes:

python-multipart is a streaming multipart parser for Python. When parsing form data, python-multipart skips line breaks (CR \r or LF \n) in front of the first boundary and any tailing bytes after the last boundary. This happens one byte at a time and emits a log event each time, which may cause excessive logging for certain inputs. An attacker could abuse this by sending a malicious request with lots of data before the first or after the last boundary, causing high CPU load and stalling the processing thread for a significant amount of time. In case of ASGI application, this could stall the event loop and prevent other requests from being processed, resulting in a denial of service (DoS). This vulnerability is fixed in 0.0.18.

The advisory is available at github.com. This vulnerability is traded as CVE-2024-53981 since 11/26/2024. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 212210 (Fedora 41 : python-python-multipart (2024-92de63698e)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.0.18 eliminates this vulnerability. Applying the patch c4fe4d3cebc08c660e57dd709af1ffa7059b3177 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (212210). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Programming Language Software

Vendor

• Kludex

Name

• python-multipart

Version

• 0.0.1
• 0.0.2
• 0.0.3
• 0.0.4
• 0.0.5
• 0.0.6
• 0.0.7
• 0.0.8
• 0.0.9
• 0.0.10
• 0.0.11
• 0.0.12
• 0.0.13
• 0.0.14
• 0.0.15
• 0.0.16
• 0.0.17

License

• open-source

Website

• Product: https://github.com/Kludex/python-multipart/

CPE 2.3info

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CPE 2.2info

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Duplicate

• Submit #XXXXXX: Xxxxxx Xxxxxxx X.x.x Xxxxxxxx Xxxxx Xxxxxxxxxx (by startr4ck)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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