GHSA-59g5-xgcq-4qw3
Suggest an improvement- Source
- https://github.com/advisories/GHSA-59g5-xgcq-4qw3
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/12/GHSA-59g5-xgcq-4qw3/GHSA-59g5-xgcq-4qw3.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/GHSA-59g5-xgcq-4qw3
- Aliases
-
- CVE-2024-53981
- Related
- Published
- 2024-12-02T21:37:04Z
- Modified
- 2024-12-02T21:57:15.146837Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Denial of service (DoS) via deformation `multipart/form-data` boundary
- Details
-
Summary
When parsing form data,
python-multipartskips line breaks (CR\ror 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).
Impact
Applications that use
python-multipartto parse form data (or use frameworks that do so) are affected.Original Report
This security issue was reported by: - GitHub security advisory in Starlette on October 30 by @Startr4ck - Email to
python-multipartmaintainer on October 3 by @mnqazi - Database specific
{ "nvd_published_at": "2024-12-02T16:15:14Z", "cwe_ids": [ "CWE-770" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2024-12-02T21:37:04Z" }- References
Affected packages
PyPI / python-multipart
Package
- Name
- python-multipart
- View open source insights on deps.dev
- Purl
- pkg:pypi/python-multipart