Improper resource allocation In io.netty:netty-codec
Description
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In netty-codec-compression versions 4.1.124.Final and below, and netty-codec versions 4.2.4.Final and below, when supplied with specially crafted input, BrotliDecoder and certain other decompression decoders will allocate a large number of reachable byte buffers, which can lead to denial of service. BrotliDecoder.decompress has no limit in how often it calls pull, decompressing data 64K bytes at a time. The buffers are saved in the output list, and remain reachable until OOM is hit. This is fixed in versions 4.1.125.Final of netty-codec and 4.2.5.Final of netty-codec-compression.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Component | Affected version | Patched versions |
|---|---|---|---|
 maven | 4.1.125.final | ||
 debian 13 | 1:4.1.48-10+deb13u1 | ||
maven | 4.2.5.final | ||
debian 11 | 1:4.1.48-4+deb11u3 | ||
debian 12 | 1:4.1.48-7+deb12u2 | ||
debian 14 | 1:4.1.48-12 |
Aliases
References