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 parsing `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.
- https://bugs.mageia.org/show_bug.cgi?id=33732
- https://ubuntu.com/security/notices/USN-7093-1
- https://www.cve.org/CVERecord?id=CVE-2024-49767
- 9/core/python-werkzeug-3.0.6-1.mga9
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