In Eclipse Jetty versions 12.0.0 to 12.0.16 included, an HTTP/2 client can specify a very large value for the HTTP/2 settings parameter SETTINGS_MAX_HEADER_LIST_SIZE. The Jetty HTTP/2 server does not perform validation on this setting, and tries to allocate a ByteBuffer of the specified capacity to encode HTTP responses, likely resulting in OutOfMemoryError being thrown, or even the JVM process exiting.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| org.eclipse.jetty.http2:jetty-http2-common(Maven) | 12.0.0 | 12.0.17 | N/A |
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