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GHSA-mm9x-g8pc-w292

Denial of Service in Netty

Source: GitHub Advisory Database (reviewed) High CVE-2020-11612

Packages

EcosystemPackageAffectedFixed in
Maven io.netty:netty-handler >= 4.1.0, < 4.1.46 4.1.46

Details

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

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

References

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