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


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.18% (57th percentile)

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  • Snyk IDSNYK-JAVA-IONETTY-6056420
  • published27 Jan 2020
  • disclosed27 Jan 2020
  • creditUnknown

Introduced: 27 Jan 2020

CVE-2019-20445  (opens in a new tab)
CWE-444  (opens 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-2020-7238

CVSS Scores

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