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GHSA-45xm-v8gq-7jqx

Excessive memory allocation

Source: GitHub Advisory Database (reviewed) Moderate CVE-2018-12541

Packages

EcosystemPackageAffectedFixed in
Maven io.vertx:vertx-core >= 3.0.0, < 3.5.4 3.5.4

Details

As written in the advisory (Markdown source, shown as plain text).

In version from 3.0.0 to 3.5.3 of Eclipse Vert.x, the WebSocket HTTP upgrade implementation buffers the full http request before doing the handshake, holding the entire request body in memory. There should be a reasonnable limit (8192 bytes) above which the WebSocket gets an HTTP response with the 413 status code and the connection gets closed.

References

External links from the advisory. They lead to third-party sites.