CVE-2019-20445: HTTP Request Smuggling in Netty

CVE-2019-20445 · Severity: info · Published 2020-02-21

HTTP Request Smuggling in Netty

Technologies: io.netty:netty (Maven), io.netty:netty-handler (Maven), org.jboss.netty:netty (Maven). Vendors: Maven.

Quick answers

Is CVE-2019-20445 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2019-20445 being exploited in the wild.
How severe is CVE-2019-20445?
Informational severity, published 21 February 2020.
Which products and versions are affected?
io.netty:netty (Maven) ECOSYSTEM:introduced=0; io.netty:netty-handler (Maven) ECOSYSTEM:introduced=4.0.0,fixed=4.1.45; org.jboss.netty:netty (Maven) ECOSYSTEM:introduced=0.
Is there a fix for CVE-2019-20445?
Yes. io.netty:netty-handler (Maven): upgrade to 4.1.45 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2019-20445?
Check whether you run io.netty:netty (Maven), io.netty:netty-handler (Maven) or org.jboss.netty:netty (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • io.netty:netty-handler (Maven): upgrade to 4.1.45 or later
    # set io.netty:netty-handler to 4.1.45 in your pom.xml or build.gradle

Affected products

  • io.netty:netty (Maven) ECOSYSTEM:introduced=0
  • io.netty:netty-handler (Maven) ECOSYSTEM:introduced=4.0.0,fixed=4.1.45
  • org.jboss.netty:netty (Maven) ECOSYSTEM:introduced=0

Identifiers

  • CVE-2019-20445
  • GHSA-p2v9-g2qv-p635

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.