medium
5.3
CWE
79 444
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2021-33037: Incorrect Transfer-Encoding handling with HTTP/1.0

First published: Mon Jul 12 2021(Updated: )

Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.

Credit: security@apache.org security@apache.org

Affected SoftwareAffected VersionHow to fix
redhat/jws5-tomcat<0:9.0.50-3.redhat_00004.1.el7
0:9.0.50-3.redhat_00004.1.el7
redhat/jws5-tomcat-native<0:1.2.30-3.redhat_3.el7
0:1.2.30-3.redhat_3.el7
redhat/jws5-tomcat-vault<0:1.1.8-4.Final_redhat_00004.1.el7
0:1.1.8-4.Final_redhat_00004.1.el7
redhat/jws5-tomcat<0:9.0.50-3.redhat_00004.1.el8
0:9.0.50-3.redhat_00004.1.el8
redhat/jws5-tomcat-native<0:1.2.30-3.redhat_3.el8
0:1.2.30-3.redhat_3.el8
redhat/jws5-tomcat-vault<0:1.1.8-4.Final_redhat_00004.1.el8
0:1.1.8-4.Final_redhat_00004.1.el8
redhat/tomcat<10.0.7
10.0.7
redhat/tomcat<9.0.48
9.0.48
redhat/tomcat<8.5.68
8.5.68
maven/org.apache.tomcat:tomcat>=8.5.0<8.5.68
8.5.68
maven/org.apache.tomcat:tomcat>=9.0.0-M1<9.0.48
9.0.48
maven/org.apache.tomcat:tomcat>=10.0.0-M1<10.0.7
10.0.7
Apache Tomcat>=8.5.0<=8.5.66
Apache Tomcat>9.0.0<=9.0.46
Apache Tomcat>10.0.0<=10.0.6
Apache TomEE=8.0.6
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Oracle Agile PLM=9.3.6
Oracle Communications Cloud Native Core Policy=1.14.0
Oracle Communications Cloud Native Core Service Communication Proxy=1.14.0
Oracle Communications Diameter Signaling Router>=8.0.0.0<=8.5.0.2
Oracle Communications Instant Messaging Server=10.0.1.5.0
Oracle Communications Policy Management=12.5.0
Oracle Communications Pricing Design Center=12.0.0.3.0
Oracle Communications Session Report Manager>=8.0.0<=8.2.4.0
Oracle Communications Session Route Manager>=8.0.0<=8.2.4
Oracle Graph Server And Client<21.4
Oracle Healthcare Translational Research=4.1.0
Oracle Hospitality Cruise Shipboard Property Management System=20.1.0
Oracle Instantis Enterprisetrack=17.1
Oracle Instantis Enterprisetrack=17.2
Oracle Instantis Enterprisetrack=17.3
Oracle Managed File Transfer=12.2.1.3.0
Oracle Managed File Transfer=12.2.1.4.0
Oracle Mysql Enterprise Monitor<=8.0.25
Oracle SD-WAN Edge=9.0
Oracle SD-WAN Edge=9.1
Oracle Secure Global Desktop=5.6
Oracle Utilities Testing Accelerator=6.0.0.1.1
Oracle Utilities Testing Accelerator=6.0.0.2.2
Oracle Utilities Testing Accelerator=6.0.0.3.1
McAfee ePolicy Orchestrator<5.10.0
McAfee ePolicy Orchestrator=5.10.0
McAfee ePolicy Orchestrator=5.10.0-update_1
McAfee ePolicy Orchestrator=5.10.0-update_10
McAfee ePolicy Orchestrator=5.10.0-update_2
McAfee ePolicy Orchestrator=5.10.0-update_3
McAfee ePolicy Orchestrator=5.10.0-update_4
McAfee ePolicy Orchestrator=5.10.0-update_5
McAfee ePolicy Orchestrator=5.10.0-update_6
McAfee ePolicy Orchestrator=5.10.0-update_7
McAfee ePolicy Orchestrator=5.10.0-update_8
McAfee ePolicy Orchestrator=5.10.0-update_9
IBM DRM<=2.0.6
debian/tomcat9
9.0.43-2~deb11u10
9.0.70-2
9.0.95-1

Remedy

https://www.oracle.com//security-alerts/cpujul2021.html

Remedy

https://www.oracle.com/security-alerts/cpuapr2022.html

Remedy

https://www.oracle.com/security-alerts/cpujan2022.html

Remedy

https://www.oracle.com/security-alerts/cpuoct2021.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2021-33037?

    The severity of CVE-2021-33037 is medium with a CVSS score of 4.3.

  • How does CVE-2021-33037 affect Apache Tomcat?

    CVE-2021-33037 affects Apache Tomcat versions 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46, and 8.5.0 to 8.5.66.

  • What is the remedy for CVE-2021-33037?

    The remedy for CVE-2021-33037 is to upgrade Apache Tomcat to version 10.0.7, 9.0.48, or 8.5.68.

  • Where can I find more information about CVE-2021-33037?

    You can find more information about CVE-2021-33037 at the following references: [CVE-2021-33037 at CVE.org](https://www.cve.org/CVERecord?id=CVE-2021-33037) and [CVE-2021-33037 at NIST](https://nvd.nist.gov/vuln/detail/CVE-2021-33037).

  • What is the CWE for CVE-2021-33037?

    The CWE for CVE-2021-33037 is CWE-444.

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