Allocation of Resources Without Limits or Throttling Affecting starlette package, versions <0.41.0-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published16 Oct 2024
- disclosed15 Oct 2024
Introduced: 15 Oct 2024
CVE-2024-47874 (opens in a new tab)How to fix?
Upgrade Debian:13 starlette to version 0.41.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream starlette package and not the starlette package as distributed by Debian.
See How to fix? for Debian:13 relevant fixed versions and status.
Starlette is an Asynchronous Server Gateway Interface (ASGI) framework/toolkit. Prior to version 0.40.0, Starlette treats multipart/form-data parts without a filename as text form fields and buffers those in byte strings with no size limit. This allows an attacker to upload arbitrary large form fields and cause Starlette to both slow down significantly due to excessive memory allocations and copy operations, and also consume more and more memory until the server starts swapping and grinds to a halt, or the OS terminates the server process with an OOM error. Uploading multiple such requests in parallel may be enough to render a service practically unusable, even if reasonable request size limits are enforced by a reverse proxy in front of Starlette. This Denial of service (DoS) vulnerability affects all applications built with Starlette (or FastAPI) accepting form requests. Verison 0.40.0 fixes this issue.