Allocation of Resources Without Limits or Throttling Affecting python-multipart package, versions <0.0.20-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.64% (47th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-PYTHONMULTIPART-8453769
  • published4 Dec 2024
  • disclosed2 Dec 2024

Introduced: 2 Dec 2024

CVE-2024-53981  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Debian:unstable python-multipart to version 0.0.20-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-multipart package and not the python-multipart package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1