CVE-2024-49767

Description

Werkzeug is a Web Server Gateway Interface web application library. Applications using `werkzeug.formparser.MultiPartParser` corresponding to a version of Werkzeug prior to 3.0.6 to parse `multipart/form-data` requests (e.g. all flask applications) are vulnerable to a relatively simple but effective resource exhaustion (denial of service) attack. A specifically crafted form submission request can cause the parser to allocate and block 3 to 8 times the upload size in main memory. There is no upper limit; a single upload at 1 Gbit/s can exhaust 32 GB of RAM in less than 60 seconds. Werkzeug version 3.0.6 fixes this issue.

Reserved 2024-10-18 | Published 2024-10-25 | Updated 2024-12-27 | Assigner GitHub_M

Problem types

CWE-400: Uncontrolled Resource Consumption

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

< 3.0.6
affected

References

github.com/...rkzeug/security/advisories/GHSA-q34m-jh98-gwm2

github.com/...ommit/5e78c4169b8eb66b91ead3e62d44721b9e1644ee

github.com/...ommit/abb04a512496206de279225340ed022852fbf51f

github.com/...ommit/50cfeebcb0727e18cc52ffbeb125f4a66551179b

github.com/pallets/werkzeug/releases/tag/3.0.6

cve.org (CVE-2024-49767)

nvd.nist.gov (CVE-2024-49767)

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