Uncontrolled Resource Consumption
CVE-2024-49767
Summary
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. This vulnerability also affects Quart package versions prior to 0.19.7.
- LOW
- NETWORK
- NONE
- UNCHANGED
- NONE
- NONE
- NONE
- HIGH
CWE-400 - Uncontrolled resource consumption
An uncontrolled resource allocation attack (also known as resource exhaustion attack) triggers unauthorized overconsumption of the limited resources in an application, such as memory, file system storage, database connection pool entries, and CPU. This may lead to denial of service for valid users and degradation of the application's functionality as well as that of the host operating system.
Advisory Timeline
- Published
