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

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.63% (79th percentile)
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NVD
9.1 critical
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Red Hat
7.5 high

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  • Snyk ID SNYK-JAVA-IONETTY-543669
  • published 30 Jan 2020
  • disclosed 29 Jan 2020
  • credit Zeddy
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Introduced: 29 Jan 2020

CVE-2019-20444 Open this link in a new tab
CWE-444 Open this link in a new tab

How to fix?

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

Overview

io.netty:netty-codec-http is a network application framework for rapid development of maintainable high performance protocol servers & clients.

Affected versions of this package are vulnerable to HTTP Request Smuggling. It allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax or as an "invalid fold."