Description
Netty is a network application framework for development of protocol servers and clients. Prior to version 4.2.15.Final, the default configuration of the `Http3ConnectionHandler` in the Netty HTTP/3 codec lacks an enforced maximum header size limit. When a peer does not explicitly specify `HTTP3_SETTINGS_MAX_FIELD_SECTION_SIZE`, the implementation defaults to an unbounded limit. This insecure default configuration allows a malicious client or server to send an enormous number of headers, leading to a memory exhaustion Denial of Service via an `OutOfMemoryError`. Version 4.2.15.Final contains a patch.
Problem types
CWE-400: Uncontrolled Resource Consumption
CWE-1188: Insecure Default Initialization of Resource
Product status
References
github.com/.../netty/security/advisories/GHSA-c2rx-5r8w-8xr2
github.com/netty/netty/releases/tag/netty-4.2.15.Final