Allocation of Resources Without Limits or Throttling Affecting litestar package, versions [,2.13.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Start learning- Snyk IDSNYK-PYTHON-LITESTAR-8400286
- published21 Nov 2024
- disclosed20 Nov 2024
- creditMarcel Hellkamp
Introduced: 20 Nov 2024
CVE-2024-52581 (opens in a new tab)How to fix?
Upgrade litestar to version 2.13.0 or higher.
Overview
litestar is a Litestar - A production-ready, highly performant, extensible ASGI API Framework
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the lack of size limits or size checks when reading the request body into memory via await self.body().
Note: All Litestar applications that process json, msgpack or form-data submission requests are affected
PoC
Start an applications that accesses
Request.json(),Request.msgpack()orRequest.form()or uses an extractor that relies on those parsers internallyend a large request with a matching content type. The actual content of the request does not matter.
Server memory consumption will increase very quickly until memory (and swap) are exhausted.