CVE-2019-20445: Critical severity Netty Netty vulnerability

Published Jan 29, 2020
·
Updated

A flaw was found in Netty before version 4.1.44, where it accepted multiple Content-Length headers and also accepted both Transfer-Encoding, as well as Content-Length headers where it should reject the message under such circumstances. In circumstances where Netty is used in the context of a server, it could result in a viable HTTP smuggling vulnerability.

Other sources

A vulnerability was found in HttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.

Reference: https://github.com/netty/netty/compare/netty-4.1.43.Final...netty-4.1.44.Final https://github.com/netty/netty/issues/9861 https://lists.apache.org/thread.html/r310d2ce22304d5298ff87f10134f918c87919b452734f9841d95682d@%3Ccommits.zookeeper.apache.org%3E https://lists.apache.org/thread.html/r36fcf538b28f2029e8b4f6b9a772f3b107913a78f09b095c5b153a62@%3Cissues.zookeeper.apache.org%3E https://lists.apache.org/thread.html/r640eb9b3213058a963e18291f903fc1584e577f60035f941e32f760a@%3Cissues.zookeeper.apache.org%3E https://lists.apache.org/thread.html/r70b1ff22ee80e8101805b9a473116dd33265709007d2deb6f8c80bf2@%3Ccommits.druid.apache.org%3E https://lists.apache.org/thread.html/r804895eedd72c9ec67898286eb185e04df852b0dd5fe53cf5b6138f9@%3Cissues.zookeeper.apache.org%3E https://lists.apache.org/thread.html/r81700644754e66ffea465c869cb477de25f8041e21598e8818fc2c45@%3Cdev.zookeeper.apache.org%3E https://lists.apache.org/thread.html/r96e08f929234e8ba1ef4a93a0fd2870f535a1f9ab628fabc46115986@%3Cdev.zookeeper.apache.org%3E https://lists.apache.org/thread.html/r9b20cdac704cf9a583400350e2d5b576fa8417c18ddb961201676c60@%3Ccommits.zookeeper.apache.org%3E https://lists.apache.org/thread.html/ra2ace4bcb5cf487f72cbcbfa0f8cc08e755ec2b93d7e69f276148b08@%3Cissues.zookeeper.apache.org%3E https://lists.apache.org/thread.html/ra9fbfe7d4830ae675bf34c7c0f8c22fc8a4099f65706c1bc4f54c593@%3Cissues.zookeeper.apache.org%3E https://lists.apache.org/thread.html/rce71d33747010d32d31d90f5d737dae26291d96552f513a266c92fbb@%3Cnotifications.zookeeper.apache.org%3E https://lists.apache.org/thread.html/re45ee9256d3233c31d78e59ee59c7dc841c7fbd83d0769285b41e948@%3Ccommits.druid.apache.org%3E https://lists.apache.org/thread.html/rfb55f245b08d8a6ec0fb4dc159022227cd22de34c4419c2fbb18802b@%3Cnotifications.zookeeper.apache.org%3E https://lists.apache.org/thread.html/rff210a24f3a924829790e69eaefa84820902b7b31f17c3bf2def9114@%3Ccommits.druid.apache.org%3E

— Red Hat

Netty could provide weaker than expected security, caused by non-proper handling of Content-Length and Transfer-Encoding in the HttpObjectDecoder.java. A remote attacker could exploit this vulnerability to launch further attacks on the system.

— IBM

Affected Software

110 affected componentsFixes available
maven/io.netty:netty<4.0.0
maven/org.jboss.netty:netty<4.0.0
maven/io.netty:netty-handler>=4.0.0<4.1.45
4.1.45
redhat/qpid-proton<0:0.30.0-4.el6_10
0:0.30.0-4.el6_10
redhat/qpid-proton<0:0.30.0-2.el7
0:0.30.0-2.el7
redhat/nodejs-rhea<0:1.0.16-1.el8
0:1.0.16-1.el8
redhat/qpid-proton<0:0.30.0-3.el8
0:0.30.0-3.el8
redhat/eap7-netty<0:4.1.45-1.Final_redhat_00001.1.el6ea
0:4.1.45-1.Final_redhat_00001.1.el6ea
redhat/eap7-activemq-artemis<0:2.9.0-2.redhat_00009.1.el6ea
0:2.9.0-2.redhat_00009.1.el6ea
redhat/eap7-apache-commons-beanutils<0:1.9.4-1.redhat_00002.1.el6ea
0:1.9.4-1.redhat_00002.1.el6ea
redhat/eap7-glassfish-el<0:3.0.1-4.b08_redhat_00003.1.el6ea
0:3.0.1-4.b08_redhat_00003.1.el6ea
redhat/eap7-glassfish-jaxb<0:2.3.3-4.b02_redhat_00001.1.el6ea
0:2.3.3-4.b02_redhat_00001.1.el6ea
redhat/eap7-glassfish-jsf<0:2.3.5-7.SP3_redhat_00005.1.el6ea
0:2.3.5-7.SP3_redhat_00005.1.el6ea
redhat/eap7-hal-console<0:3.0.20-1.Final_redhat_00001.1.el6ea
0:3.0.20-1.Final_redhat_00001.1.el6ea
redhat/eap7-hibernate<0:5.3.15-1.Final_redhat_00001.1.el6ea
0:5.3.15-1.Final_redhat_00001.1.el6ea
redhat/eap7-infinispan<0:9.3.8-1.Final_redhat_00001.1.el6ea
0:9.3.8-1.Final_redhat_00001.1.el6ea
redhat/eap7-ironjacamar<0:1.4.20-1.Final_redhat_00001.1.el6ea
0:1.4.20-1.Final_redhat_00001.1.el6ea
redhat/eap7-jackson-databind<0:2.9.10.2-1.redhat_00001.1.el6ea
0:2.9.10.2-1.redhat_00001.1.el6ea
redhat/eap7-jaegertracing-jaeger-client-java<0:0.34.1-1.redhat_00002.1.el6ea
0:0.34.1-1.redhat_00002.1.el6ea
redhat/eap7-jboss-ejb-client<0:4.0.28-1.Final_redhat_00001.1.el6ea
0:4.0.28-1.Final_redhat_00001.1.el6ea
redhat/eap7-jboss-remoting<0:5.0.17-1.Final_redhat_00001.1.el6ea
0:5.0.17-1.Final_redhat_00001.1.el6ea
redhat/eap7-jboss-server-migration<0:1.3.1-8.Final_redhat_00009.1.el6ea
0:1.3.1-8.Final_redhat_00009.1.el6ea
redhat/eap7-picketlink-bindings<0:2.5.5-23.SP12_redhat_00012.1.el6ea
0:2.5.5-23.SP12_redhat_00012.1.el6ea
redhat/eap7-stax2-api<0:4.2.0-1.redhat_00001.1.el6ea
0:4.2.0-1.redhat_00001.1.el6ea
redhat/eap7-sun-istack-commons<0:3.0.10-1.redhat_00001.1.el6ea
0:3.0.10-1.redhat_00001.1.el6ea
redhat/eap7-thrift<0:0.13.0-1.redhat_00002.1.el6ea
0:0.13.0-1.redhat_00002.1.el6ea
redhat/eap7-wildfly<0:7.2.7-4.GA_redhat_00004.1.el6ea
0:7.2.7-4.GA_redhat_00004.1.el6ea
redhat/eap7-wildfly-http-client<0:1.0.20-1.Final_redhat_00001.1.el6ea
0:1.0.20-1.Final_redhat_00001.1.el6ea
redhat/eap7-wildfly-openssl<0:1.0.9-2.SP03_redhat_00001.1.el6ea
0:1.0.9-2.SP03_redhat_00001.1.el6ea
redhat/eap7-wildfly-transaction-client<0:1.1.9-1.Final_redhat_00001.1.el6ea
0:1.1.9-1.Final_redhat_00001.1.el6ea
redhat/eap7-woodstox-core<0:6.0.3-1.redhat_00001.1.el6ea
0:6.0.3-1.redhat_00001.1.el6ea
redhat/eap7-xml-security<0:2.1.4-1.redhat_00001.1.el6ea
0:2.1.4-1.redhat_00001.1.el6ea
redhat/eap7-netty<0:4.1.45-1.Final_redhat_00001.1.el7ea
0:4.1.45-1.Final_redhat_00001.1.el7ea
redhat/eap7-activemq-artemis<0:2.9.0-2.redhat_00009.1.el7ea
0:2.9.0-2.redhat_00009.1.el7ea
redhat/eap7-apache-commons-beanutils<0:1.9.4-1.redhat_00002.1.el7ea
0:1.9.4-1.redhat_00002.1.el7ea
redhat/eap7-glassfish-el<0:3.0.1-4.b08_redhat_00003.1.el7ea
0:3.0.1-4.b08_redhat_00003.1.el7ea
redhat/eap7-glassfish-jaxb<0:2.3.3-4.b02_redhat_00001.1.el7ea
0:2.3.3-4.b02_redhat_00001.1.el7ea
redhat/eap7-glassfish-jsf<0:2.3.5-7.SP3_redhat_00005.1.el7ea
0:2.3.5-7.SP3_redhat_00005.1.el7ea
redhat/eap7-hal-console<0:3.0.20-1.Final_redhat_00001.1.el7ea
0:3.0.20-1.Final_redhat_00001.1.el7ea
redhat/eap7-hibernate<0:5.3.15-1.Final_redhat_00001.1.el7ea
0:5.3.15-1.Final_redhat_00001.1.el7ea
redhat/eap7-infinispan<0:9.3.8-1.Final_redhat_00001.1.el7ea
0:9.3.8-1.Final_redhat_00001.1.el7ea
redhat/eap7-ironjacamar<0:1.4.20-1.Final_redhat_00001.1.el7ea
0:1.4.20-1.Final_redhat_00001.1.el7ea
redhat/eap7-jackson-databind<0:2.9.10.2-1.redhat_00001.1.el7ea
0:2.9.10.2-1.redhat_00001.1.el7ea
redhat/eap7-jaegertracing-jaeger-client-java<0:0.34.1-1.redhat_00002.1.el7ea
0:0.34.1-1.redhat_00002.1.el7ea
redhat/eap7-jboss-ejb-client<0:4.0.28-1.Final_redhat_00001.1.el7ea
0:4.0.28-1.Final_redhat_00001.1.el7ea
redhat/eap7-jboss-remoting<0:5.0.17-1.Final_redhat_00001.1.el7ea
0:5.0.17-1.Final_redhat_00001.1.el7ea
redhat/eap7-jboss-server-migration<0:1.3.1-8.Final_redhat_00009.1.el7ea
0:1.3.1-8.Final_redhat_00009.1.el7ea
redhat/eap7-picketlink-bindings<0:2.5.5-23.SP12_redhat_00012.1.el7ea
0:2.5.5-23.SP12_redhat_00012.1.el7ea
redhat/eap7-stax2-api<0:4.2.0-1.redhat_00001.1.el7ea
0:4.2.0-1.redhat_00001.1.el7ea
redhat/eap7-sun-istack-commons<0:3.0.10-1.redhat_00001.1.el7ea
0:3.0.10-1.redhat_00001.1.el7ea
redhat/eap7-thrift<0:0.13.0-1.redhat_00002.1.el7ea
0:0.13.0-1.redhat_00002.1.el7ea
redhat/eap7-wildfly<0:7.2.7-4.GA_redhat_00004.1.el7ea
0:7.2.7-4.GA_redhat_00004.1.el7ea
redhat/eap7-wildfly-http-client<0:1.0.20-1.Final_redhat_00001.1.el7ea
0:1.0.20-1.Final_redhat_00001.1.el7ea
redhat/eap7-wildfly-openssl<0:1.0.9-2.SP03_redhat_00001.1.el7ea
0:1.0.9-2.SP03_redhat_00001.1.el7ea
redhat/eap7-wildfly-transaction-client<0:1.1.9-1.Final_redhat_00001.1.el7ea
0:1.1.9-1.Final_redhat_00001.1.el7ea
redhat/eap7-woodstox-core<0:6.0.3-1.redhat_00001.1.el7ea
0:6.0.3-1.redhat_00001.1.el7ea
redhat/eap7-xml-security<0:2.1.4-1.redhat_00001.1.el7ea
0:2.1.4-1.redhat_00001.1.el7ea
redhat/eap7-netty<0:4.1.45-1.Final_redhat_00001.1.el8ea
0:4.1.45-1.Final_redhat_00001.1.el8ea
redhat/eap7-activemq-artemis<0:2.9.0-2.redhat_00009.1.el8ea
0:2.9.0-2.redhat_00009.1.el8ea
redhat/eap7-apache-commons-beanutils<0:1.9.4-1.redhat_00002.1.el8ea
0:1.9.4-1.redhat_00002.1.el8ea
redhat/eap7-glassfish-el<0:3.0.1-4.b08_redhat_00003.1.el8ea
0:3.0.1-4.b08_redhat_00003.1.el8ea
redhat/eap7-glassfish-jaxb<0:2.3.3-4.b02_redhat_00001.1.el8ea
0:2.3.3-4.b02_redhat_00001.1.el8ea
redhat/eap7-glassfish-jsf<0:2.3.5-7.SP3_redhat_00005.1.el8ea
0:2.3.5-7.SP3_redhat_00005.1.el8ea
redhat/eap7-hal-console<0:3.0.20-1.Final_redhat_00001.1.el8ea
0:3.0.20-1.Final_redhat_00001.1.el8ea
redhat/eap7-hibernate<0:5.3.15-1.Final_redhat_00001.1.el8ea
0:5.3.15-1.Final_redhat_00001.1.el8ea
redhat/eap7-infinispan<0:9.3.8-1.Final_redhat_00001.1.el8ea
0:9.3.8-1.Final_redhat_00001.1.el8ea
redhat/eap7-ironjacamar<0:1.4.20-1.Final_redhat_00001.1.el8ea
0:1.4.20-1.Final_redhat_00001.1.el8ea
redhat/eap7-jackson-databind<0:2.9.10.2-1.redhat_00001.1.el8ea
0:2.9.10.2-1.redhat_00001.1.el8ea
redhat/eap7-jaegertracing-jaeger-client-java<0:0.34.1-1.redhat_00002.1.el8ea
0:0.34.1-1.redhat_00002.1.el8ea
redhat/eap7-jboss-ejb-client<0:4.0.28-1.Final_redhat_00001.1.el8ea
0:4.0.28-1.Final_redhat_00001.1.el8ea
redhat/eap7-jboss-remoting<0:5.0.17-1.Final_redhat_00001.1.el8ea
0:5.0.17-1.Final_redhat_00001.1.el8ea
redhat/eap7-jboss-server-migration<0:1.3.1-8.Final_redhat_00009.1.el8ea
0:1.3.1-8.Final_redhat_00009.1.el8ea
redhat/eap7-picketlink-bindings<0:2.5.5-23.SP12_redhat_00012.1.el8ea
0:2.5.5-23.SP12_redhat_00012.1.el8ea
redhat/eap7-stax2-api<0:4.2.0-1.redhat_00001.1.el8ea
0:4.2.0-1.redhat_00001.1.el8ea
redhat/eap7-sun-istack-commons<0:3.0.10-1.redhat_00001.1.el8ea
0:3.0.10-1.redhat_00001.1.el8ea
redhat/eap7-thrift<0:0.13.0-1.redhat_00002.1.el8ea
0:0.13.0-1.redhat_00002.1.el8ea
redhat/eap7-wildfly<0:7.2.7-4.GA_redhat_00004.1.el8ea
0:7.2.7-4.GA_redhat_00004.1.el8ea
redhat/eap7-wildfly-http-client<0:1.0.20-1.Final_redhat_00001.1.el8ea
0:1.0.20-1.Final_redhat_00001.1.el8ea
redhat/eap7-wildfly-openssl<0:1.0.9-2.SP03_redhat_00001.1.el8ea
0:1.0.9-2.SP03_redhat_00001.1.el8ea
redhat/eap7-wildfly-transaction-client<0:1.1.9-1.Final_redhat_00001.1.el8ea
0:1.1.9-1.Final_redhat_00001.1.el8ea
redhat/eap7-woodstox-core<0:6.0.3-1.redhat_00001.1.el8ea
0:6.0.3-1.redhat_00001.1.el8ea
redhat/eap7-xml-security<0:2.1.4-1.redhat_00001.1.el8ea
0:2.1.4-1.redhat_00001.1.el8ea
Netty Netty<4.1.44
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Fedoraproject Fedora=33
Canonical Ubuntu Linux=18.04
redhat Jboss Amq Clients=2
redhat JBoss Enterprise Application Platform=7.2
redhat JBoss Enterprise Application Platform=7.3
redhat Enterprise Linux=6.0
redhat Enterprise Linux=7.0
redhat Enterprise Linux=8.0
Apache Spark=2.4.7
Apache Spark=2.4.8
redhat/netty<4.1.44
4.1.44
IBM Data Virtualization on Cloud Pak for Data<=3.0
IBM Watson Query on Cloud Pak for Data<=2.2
IBM Watson Query on Cloud Pak for Data<=2.1
IBM Watson Query on Cloud Pak for Data<=2.0
IBM Data Virtualization on Cloud Pak for Data<=1.8
IBM Data Virtualization on Cloud Pak for Data<=1.7
All of the following
Any of the following
redhat Jboss Amq Clients=2
redhat JBoss Enterprise Application Platform=7.2
redhat JBoss Enterprise Application Platform=7.3
Any of the following
redhat Enterprise Linux=6.0
redhat Enterprise Linux=7.0
redhat Enterprise Linux=8.0
debian/netty
1:4.1.48-7+deb12u21:4.1.48-10+deb13u11:4.1.48-16

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade maven/io.netty:netty-handler to a version that resolves this vulnerability.

    Fixed in 4.1.45
  2. Upgrade

    Upgrade redhat/qpid-proton to a version that resolves this vulnerability.

    Fixed in 0:0.30.0-4.el6_10
  3. Upgrade

    Upgrade redhat/qpid-proton to a version that resolves this vulnerability.

    Fixed in 0:0.30.0-2.el7
  4. Upgrade

    Upgrade redhat/nodejs-rhea to a version that resolves this vulnerability.

    Fixed in 0:1.0.16-1.el8
  5. Upgrade

    Upgrade redhat/qpid-proton to a version that resolves this vulnerability.

    Fixed in 0:0.30.0-3.el8
  6. Upgrade

    Upgrade redhat/eap7-netty to a version that resolves this vulnerability.

    Fixed in 0:4.1.45-1.Final_redhat_00001.1.el6ea
  7. Upgrade

    Upgrade redhat/eap7-activemq-artemis to a version that resolves this vulnerability.

    Fixed in 0:2.9.0-2.redhat_00009.1.el6ea
  8. Upgrade

    Upgrade redhat/eap7-apache-commons-beanutils to a version that resolves this vulnerability.

    Fixed in 0:1.9.4-1.redhat_00002.1.el6ea
  9. Upgrade

    Upgrade redhat/eap7-glassfish-el to a version that resolves this vulnerability.

    Fixed in 0:3.0.1-4.b08_redhat_00003.1.el6ea
  10. Upgrade

    Upgrade redhat/eap7-glassfish-jaxb to a version that resolves this vulnerability.

    Fixed in 0:2.3.3-4.b02_redhat_00001.1.el6ea
  11. Upgrade

    Upgrade redhat/eap7-glassfish-jsf to a version that resolves this vulnerability.

    Fixed in 0:2.3.5-7.SP3_redhat_00005.1.el6ea
  12. Upgrade

    Upgrade redhat/eap7-hal-console to a version that resolves this vulnerability.

    Fixed in 0:3.0.20-1.Final_redhat_00001.1.el6ea
  13. Upgrade

    Upgrade redhat/eap7-hibernate to a version that resolves this vulnerability.

    Fixed in 0:5.3.15-1.Final_redhat_00001.1.el6ea
  14. Upgrade

    Upgrade redhat/eap7-infinispan to a version that resolves this vulnerability.

    Fixed in 0:9.3.8-1.Final_redhat_00001.1.el6ea
  15. Upgrade

    Upgrade redhat/eap7-ironjacamar to a version that resolves this vulnerability.

    Fixed in 0:1.4.20-1.Final_redhat_00001.1.el6ea
  16. Upgrade

    Upgrade redhat/eap7-jackson-databind to a version that resolves this vulnerability.

    Fixed in 0:2.9.10.2-1.redhat_00001.1.el6ea
  17. Upgrade

    Upgrade redhat/eap7-jaegertracing-jaeger-client-java to a version that resolves this vulnerability.

    Fixed in 0:0.34.1-1.redhat_00002.1.el6ea
  18. Upgrade

    Upgrade redhat/eap7-jboss-ejb-client to a version that resolves this vulnerability.

    Fixed in 0:4.0.28-1.Final_redhat_00001.1.el6ea
  19. Upgrade

    Upgrade redhat/eap7-jboss-remoting to a version that resolves this vulnerability.

    Fixed in 0:5.0.17-1.Final_redhat_00001.1.el6ea
  20. Upgrade

    Upgrade redhat/eap7-jboss-server-migration to a version that resolves this vulnerability.

    Fixed in 0:1.3.1-8.Final_redhat_00009.1.el6ea
  21. Upgrade

    Upgrade redhat/eap7-picketlink-bindings to a version that resolves this vulnerability.

    Fixed in 0:2.5.5-23.SP12_redhat_00012.1.el6ea
  22. Upgrade

    Upgrade redhat/eap7-stax2-api to a version that resolves this vulnerability.

    Fixed in 0:4.2.0-1.redhat_00001.1.el6ea
  23. Upgrade

    Upgrade redhat/eap7-sun-istack-commons to a version that resolves this vulnerability.

    Fixed in 0:3.0.10-1.redhat_00001.1.el6ea
  24. Upgrade

    Upgrade redhat/eap7-thrift to a version that resolves this vulnerability.

    Fixed in 0:0.13.0-1.redhat_00002.1.el6ea
  25. Upgrade

    Upgrade redhat/eap7-wildfly to a version that resolves this vulnerability.

    Fixed in 0:7.2.7-4.GA_redhat_00004.1.el6ea
  26. Upgrade

    Upgrade redhat/eap7-wildfly-http-client to a version that resolves this vulnerability.

    Fixed in 0:1.0.20-1.Final_redhat_00001.1.el6ea
  27. Upgrade

    Upgrade redhat/eap7-wildfly-openssl to a version that resolves this vulnerability.

    Fixed in 0:1.0.9-2.SP03_redhat_00001.1.el6ea
  28. Upgrade

    Upgrade redhat/eap7-wildfly-transaction-client to a version that resolves this vulnerability.

    Fixed in 0:1.1.9-1.Final_redhat_00001.1.el6ea
  29. Upgrade

    Upgrade redhat/eap7-woodstox-core to a version that resolves this vulnerability.

    Fixed in 0:6.0.3-1.redhat_00001.1.el6ea
  30. Upgrade

    Upgrade redhat/eap7-xml-security to a version that resolves this vulnerability.

    Fixed in 0:2.1.4-1.redhat_00001.1.el6ea
  31. Upgrade

    Upgrade redhat/eap7-netty to a version that resolves this vulnerability.

    Fixed in 0:4.1.45-1.Final_redhat_00001.1.el7ea
  32. Upgrade

    Upgrade redhat/eap7-activemq-artemis to a version that resolves this vulnerability.

    Fixed in 0:2.9.0-2.redhat_00009.1.el7ea
  33. Upgrade

    Upgrade redhat/eap7-apache-commons-beanutils to a version that resolves this vulnerability.

    Fixed in 0:1.9.4-1.redhat_00002.1.el7ea
  34. Upgrade

    Upgrade redhat/eap7-glassfish-el to a version that resolves this vulnerability.

    Fixed in 0:3.0.1-4.b08_redhat_00003.1.el7ea
  35. Upgrade

    Upgrade redhat/eap7-glassfish-jaxb to a version that resolves this vulnerability.

    Fixed in 0:2.3.3-4.b02_redhat_00001.1.el7ea
  36. Upgrade

    Upgrade redhat/eap7-glassfish-jsf to a version that resolves this vulnerability.

    Fixed in 0:2.3.5-7.SP3_redhat_00005.1.el7ea
  37. Upgrade

    Upgrade redhat/eap7-hal-console to a version that resolves this vulnerability.

    Fixed in 0:3.0.20-1.Final_redhat_00001.1.el7ea
  38. Upgrade

    Upgrade redhat/eap7-hibernate to a version that resolves this vulnerability.

    Fixed in 0:5.3.15-1.Final_redhat_00001.1.el7ea
  39. Upgrade

    Upgrade redhat/eap7-infinispan to a version that resolves this vulnerability.

    Fixed in 0:9.3.8-1.Final_redhat_00001.1.el7ea
  40. Upgrade

    Upgrade redhat/eap7-ironjacamar to a version that resolves this vulnerability.

    Fixed in 0:1.4.20-1.Final_redhat_00001.1.el7ea
  41. Upgrade

    Upgrade redhat/eap7-jackson-databind to a version that resolves this vulnerability.

    Fixed in 0:2.9.10.2-1.redhat_00001.1.el7ea
  42. Upgrade

    Upgrade redhat/eap7-jaegertracing-jaeger-client-java to a version that resolves this vulnerability.

    Fixed in 0:0.34.1-1.redhat_00002.1.el7ea
  43. Upgrade

    Upgrade redhat/eap7-jboss-ejb-client to a version that resolves this vulnerability.

    Fixed in 0:4.0.28-1.Final_redhat_00001.1.el7ea
  44. Upgrade

    Upgrade redhat/eap7-jboss-remoting to a version that resolves this vulnerability.

    Fixed in 0:5.0.17-1.Final_redhat_00001.1.el7ea
  45. Upgrade

    Upgrade redhat/eap7-jboss-server-migration to a version that resolves this vulnerability.

    Fixed in 0:1.3.1-8.Final_redhat_00009.1.el7ea
  46. Upgrade

    Upgrade redhat/eap7-picketlink-bindings to a version that resolves this vulnerability.

    Fixed in 0:2.5.5-23.SP12_redhat_00012.1.el7ea
  47. Upgrade

    Upgrade redhat/eap7-stax2-api to a version that resolves this vulnerability.

    Fixed in 0:4.2.0-1.redhat_00001.1.el7ea
  48. Upgrade

    Upgrade redhat/eap7-sun-istack-commons to a version that resolves this vulnerability.

    Fixed in 0:3.0.10-1.redhat_00001.1.el7ea
  49. Upgrade

    Upgrade redhat/eap7-thrift to a version that resolves this vulnerability.

    Fixed in 0:0.13.0-1.redhat_00002.1.el7ea
  50. Upgrade

    Upgrade redhat/eap7-wildfly to a version that resolves this vulnerability.

    Fixed in 0:7.2.7-4.GA_redhat_00004.1.el7ea
  51. Upgrade

    Upgrade redhat/eap7-wildfly-http-client to a version that resolves this vulnerability.

    Fixed in 0:1.0.20-1.Final_redhat_00001.1.el7ea
  52. Upgrade

    Upgrade redhat/eap7-wildfly-openssl to a version that resolves this vulnerability.

    Fixed in 0:1.0.9-2.SP03_redhat_00001.1.el7ea
  53. Upgrade

    Upgrade redhat/eap7-wildfly-transaction-client to a version that resolves this vulnerability.

    Fixed in 0:1.1.9-1.Final_redhat_00001.1.el7ea
  54. Upgrade

    Upgrade redhat/eap7-woodstox-core to a version that resolves this vulnerability.

    Fixed in 0:6.0.3-1.redhat_00001.1.el7ea
  55. Upgrade

    Upgrade redhat/eap7-xml-security to a version that resolves this vulnerability.

    Fixed in 0:2.1.4-1.redhat_00001.1.el7ea
  56. Upgrade

    Upgrade redhat/eap7-netty to a version that resolves this vulnerability.

    Fixed in 0:4.1.45-1.Final_redhat_00001.1.el8ea
  57. Upgrade

    Upgrade redhat/eap7-activemq-artemis to a version that resolves this vulnerability.

    Fixed in 0:2.9.0-2.redhat_00009.1.el8ea
  58. Upgrade

    Upgrade redhat/eap7-apache-commons-beanutils to a version that resolves this vulnerability.

    Fixed in 0:1.9.4-1.redhat_00002.1.el8ea
  59. Upgrade

    Upgrade redhat/eap7-glassfish-el to a version that resolves this vulnerability.

    Fixed in 0:3.0.1-4.b08_redhat_00003.1.el8ea
  60. Upgrade

    Upgrade redhat/eap7-glassfish-jaxb to a version that resolves this vulnerability.

    Fixed in 0:2.3.3-4.b02_redhat_00001.1.el8ea
  61. Upgrade

    Upgrade redhat/eap7-glassfish-jsf to a version that resolves this vulnerability.

    Fixed in 0:2.3.5-7.SP3_redhat_00005.1.el8ea
  62. Upgrade

    Upgrade redhat/eap7-hal-console to a version that resolves this vulnerability.

    Fixed in 0:3.0.20-1.Final_redhat_00001.1.el8ea
  63. Upgrade

    Upgrade redhat/eap7-hibernate to a version that resolves this vulnerability.

    Fixed in 0:5.3.15-1.Final_redhat_00001.1.el8ea
  64. Upgrade

    Upgrade redhat/eap7-infinispan to a version that resolves this vulnerability.

    Fixed in 0:9.3.8-1.Final_redhat_00001.1.el8ea
  65. Upgrade

    Upgrade redhat/eap7-ironjacamar to a version that resolves this vulnerability.

    Fixed in 0:1.4.20-1.Final_redhat_00001.1.el8ea
  66. Upgrade

    Upgrade redhat/eap7-jackson-databind to a version that resolves this vulnerability.

    Fixed in 0:2.9.10.2-1.redhat_00001.1.el8ea
  67. Upgrade

    Upgrade redhat/eap7-jaegertracing-jaeger-client-java to a version that resolves this vulnerability.

    Fixed in 0:0.34.1-1.redhat_00002.1.el8ea
  68. Upgrade

    Upgrade redhat/eap7-jboss-ejb-client to a version that resolves this vulnerability.

    Fixed in 0:4.0.28-1.Final_redhat_00001.1.el8ea
  69. Upgrade

    Upgrade redhat/eap7-jboss-remoting to a version that resolves this vulnerability.

    Fixed in 0:5.0.17-1.Final_redhat_00001.1.el8ea
  70. Upgrade

    Upgrade redhat/eap7-jboss-server-migration to a version that resolves this vulnerability.

    Fixed in 0:1.3.1-8.Final_redhat_00009.1.el8ea
  71. Upgrade

    Upgrade redhat/eap7-picketlink-bindings to a version that resolves this vulnerability.

    Fixed in 0:2.5.5-23.SP12_redhat_00012.1.el8ea
  72. Upgrade

    Upgrade redhat/eap7-stax2-api to a version that resolves this vulnerability.

    Fixed in 0:4.2.0-1.redhat_00001.1.el8ea
  73. Upgrade

    Upgrade redhat/eap7-sun-istack-commons to a version that resolves this vulnerability.

    Fixed in 0:3.0.10-1.redhat_00001.1.el8ea
  74. Upgrade

    Upgrade redhat/eap7-thrift to a version that resolves this vulnerability.

    Fixed in 0:0.13.0-1.redhat_00002.1.el8ea
  75. Upgrade

    Upgrade redhat/eap7-wildfly to a version that resolves this vulnerability.

    Fixed in 0:7.2.7-4.GA_redhat_00004.1.el8ea
  76. Upgrade

    Upgrade redhat/eap7-wildfly-http-client to a version that resolves this vulnerability.

    Fixed in 0:1.0.20-1.Final_redhat_00001.1.el8ea
  77. Upgrade

    Upgrade redhat/eap7-wildfly-openssl to a version that resolves this vulnerability.

    Fixed in 0:1.0.9-2.SP03_redhat_00001.1.el8ea
  78. Upgrade

    Upgrade redhat/eap7-wildfly-transaction-client to a version that resolves this vulnerability.

    Fixed in 0:1.1.9-1.Final_redhat_00001.1.el8ea
  79. Upgrade

    Upgrade redhat/eap7-woodstox-core to a version that resolves this vulnerability.

    Fixed in 0:6.0.3-1.redhat_00001.1.el8ea
  80. Upgrade

    Upgrade redhat/eap7-xml-security to a version that resolves this vulnerability.

    Fixed in 0:2.1.4-1.redhat_00001.1.el8ea
  81. Upgrade

    Upgrade redhat/netty to a version that resolves this vulnerability.

    Fixed in 4.1.44
  82. Upgrade

    Upgrade debian/netty to a version that resolves this vulnerability.

    Fixed in 1:4.1.48-7+deb12u2Fixed in 1:4.1.48-10+deb13u1Fixed in 1:4.1.48-16
  83. Upgrade

    Upgrade Netty to a version that resolves this vulnerability.

    Fixed in 4.1.44
  84. Configuration

    Disable reuse of backend connections by setting http-reuse to never.

    HAProxy or equivalent load balancer http-reuse = never
  85. Compensating control

    Use HTTP/2 instead to maintain clear boundaries between requests.

Event History

Jan 29, 2020
CVE Published
12:00 AM
CVE Published
via MITRE·08:33 PM
Data Sourced
via MITRE·08:33 PM
Description
Data Sourced
via NVD·09:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Feb 5, 2020
Data Sourced
via Red Hat·02:20 PM
DescriptionSeverityAffected Software
Feb 21, 2020
Advisory Published
06:55 PM
Aug 15, 2025
Data Sourced
via IBM·03:29 PM
DescriptionAffected Software
Feb 23, 2026
Data Sourced
via Ubuntu·03:18 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Launchpad·03:19 PM
Description
Oct 9, 2026
Data Sourced
via Debian·09:36 PM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2019-20445?

The CVE-2019-20445 vulnerability is considered high severity due to its potential to allow HTTP request smuggling attacks.

2

How do I fix CVE-2019-20445?

To resolve CVE-2019-20445, upgrade to Netty version 4.1.45 or later.

3

Which versions of Netty are affected by CVE-2019-20445?

Netty versions prior to 4.1.45 are affected by CVE-2019-20445.

4

What kind of attacks can CVE-2019-20445 facilitate?

CVE-2019-20445 can facilitate HTTP request smuggling attacks due to improper handling of multiple Content-Length headers.

5

Is there a workaround for CVE-2019-20445 until I can update?

There are no officially recommended workarounds for CVE-2019-20445; updating to a safe version is advised.

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