| Package | Affected versions | Patched versions |
|---|---|---|
| io.netty:netty-codec | < 4.1.136.Final | 4.1.136.Final |
| io.netty:netty-codec-compression | ≥ 4.2.0.Final, < 4.2.16.Final | 4.2.16.Final |
| netty | ≥ 4.2.0, < 4.2.16< 4.1.136 | 4.2.164.1.136 |
The Bzip2Decoder handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the event-loop thread in an infinite loop. The vulnerability exists in the run-length encoding (RLE) state machine within [Bzip2BlockDecompressor.read()]
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