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HTTP Request Smuggling Affecting io.netty:netty-all package, versions [,4.1.44.Final)

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.52% (77th percentile)
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NVD
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-JAVA-IONETTY-559516
  • published 27 Jan 2020
  • disclosed 27 Jan 2020
  • credit Unknown
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Introduced: 27 Jan 2020

CVE-2020-7238 Open this link in a new tab
CWE-444 Open this link in a new tab

How to fix?

Upgrade io.netty:netty-all to version 4.1.44.Final or higher.

Overview

io.netty:netty-all is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

Affected versions of this package are vulnerable to HTTP Request Smuggling due to the package mishandling Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header when using HTTP/1.1. This issue exists because of an incomplete fix for CVE-2019-16869.

NOTE: This vulnerability has also been identified as: CVE-2019-20445