CVE-2024-47874

Name
CVE-2024-47874
Description
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.
NVD Severity
high
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
CONFIRM https://github.com/encode/starlette/security/advisories/GHSA-f96h-pmfr-66vw
MISC https://github.com/encode/starlette/commit/fd038f3070c302bff17ef7d173dbb0b007617733

Match rules

CPE URI Source package Min version Max version
starlette >= 0 < 0.40.0
cpe:2.3:a:encode:starlette:*:*:*:*:*:python:*:* py3-starlette >= 0 < 0.40.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
py3-starlette edge-community 0.38.2-r0 Steven Guikal <apk-void@fluix.one> possibly vulnerable
py3-starlette 3.20-community 0.37.2-r2 Steven Guikal <apk-void@fluix.one> possibly vulnerable