Uncontrolled Memory Allocation Affecting io.netty:netty-codec Open this link in a new tab package, versions [4.1.0.Final, 4.1.46.Final)


0.0
high
  • Attack Complexity

    Low

  • Availability

    High

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  • snyk-id

    SNYK-JAVA-IONETTY-564897

  • published

    7 Apr 2020

  • disclosed

    7 Apr 2020

  • credit

    Scott Mitchell

How to fix?

Upgrade io.netty:netty-codec to version 4.1.46.Final or higher.

Overview

io.netty:netty-codec is an event-driven asynchronous network application framework.

Affected versions of this package are vulnerable to Uncontrolled 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