A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body. The bug was first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring introduced the bug but further investigation has shown that the bug is present in all currently supported Tomcat versions.
CVSS Details
- CVSS 3.0 Base Score: 7.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux | — | Upgrade tomcat8Upgrade tomcat6Upgrade tomcat7 | Feb 15, 2017 | Jan 5, 2017 |
| Apache Tomcat | — | Upgrade Apache Tomcat to 7.0.75Upgrade Apache Tomcat to 9.0.0Upgrade Apache Tomcat to 8.5.9Upgrade Apache Tomcat to 8.0.41Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 6.0.50 | Aug 10, 2017 | Aug 10, 2017 |
| Centos_linux | — | Upgrade tomcat-jsp-2.2-apiUpgrade tomcat6Upgrade tomcat6-el-2.1-apiUpgrade tomcat6-admin-webappsUpgrade tomcat-javadocUpgrade tomcat6-libUpgrade tomcat-docs-webappUpgrade tomcat6-javadocUpgrade tomcat-admin-webappsUpgrade tomcat6-webappsUpgrade tomcat6-servlet-2.5-apiUpgrade tomcat-servlet-3.0-apiUpgrade tomcat-jsvcUpgrade tomcat6-docs-webappUpgrade tomcat-el-2.2-apiUpgrade tomcat-webappsUpgrade tomcatUpgrade tomcat-libUpgrade tomcat6-jsp-2.1-api | Mar 20, 2017 | Jan 5, 2017 |
| Debian | — | Upgrade tomcat7 | Jan 9, 2017 | Jan 5, 2017 |
| Freebsd | — | Upgrade tomcat7Upgrade tomcat8Upgrade tomcat | Jan 8, 2017 | Jan 7, 2017 |
| Gentoo Linux | — | Upgrade www-servers/tomcat. | Oct 30, 2017 | Aug 10, 2017 |
| Huawei Euleros 2_0_sp1 | — | Upgrade tomcat-el-2.2-apiUpgrade tomcat-jsp-2.2-apiUpgrade tomcat-libUpgrade tomcat-webappsUpgrade tomcat-admin-webappsUpgrade tomcatUpgrade tomcat-servlet-3.0-api | Jan 18, 2018 | Aug 10, 2017 |
| Huawei Euleros 2_0_sp2 | — | Upgrade tomcat-webappsUpgrade tomcat-libUpgrade tomcatUpgrade tomcat-admin-webappsUpgrade tomcat-el-2.2-apiUpgrade tomcat-jsp-2.2-apiUpgrade tomcat-servlet-3.0-api | Jan 18, 2018 | Aug 10, 2017 |
| Oracle Solaris | — | Upgrade web/java-servlet/tomcat to version 6.0.53-0.175.3.20.0.3.0 on Solaris 11.3Upgrade web/java-servlet/tomcat-8/tomcat-examples to version 8.5.9-0.175.3.16.0.3.0 on Solaris 11.3Upgrade web/java-servlet/tomcat-8/tomcat-admin to version 8.5.9-0.175.3.16.0.3.0 on Solaris 11.3Upgrade web/java-servlet/tomcat/tomcat-examples to version 6.0.53-0.175.3.20.0.3.0 on Solaris 11.3Upgrade web/java-servlet/tomcat-8 to version 8.5.9-0.175.3.16.0.3.0 on Solaris 11.3 | May 29, 2017 | May 29, 2017 |
| Oracle_linux | — | Upgrade tomcatUpgrade tomcat6-jsp-2.1-apiUpgrade tomcat6Upgrade tomcat6-webappsUpgrade tomcat-docs-webappUpgrade tomcat-jsvcUpgrade tomcat6-servlet-2.5-apiUpgrade tomcat-servlet-3.0-apiUpgrade tomcat6-javadocUpgrade tomcat6-el-2.1-apiUpgrade tomcat-libUpgrade tomcat-javadocUpgrade tomcat6-admin-webappsUpgrade tomcat-webappsUpgrade tomcat-el-2.2-apiUpgrade tomcat6-libUpgrade tomcat-jsp-2.2-apiUpgrade tomcat-admin-webappsUpgrade tomcat6-docs-webapp | Mar 18, 2017 | Dec 12, 2016 |
| Redhat_linux | — | Upgrade tomcat-servlet-3.0-apiUpgrade tomcat6-servlet-2.5-apiUpgrade tomcat6Upgrade tomcat6-el-2.1-apiUpgrade tomcat-webappsUpgrade tomcat-admin-webappsUpgrade tomcat-libUpgrade tomcat6-libUpgrade tomcat-javadocUpgrade tomcat6-admin-webappsUpgrade tomcat6-docs-webappUpgrade tomcatUpgrade tomcat-jsvcUpgrade tomcat6-jsp-2.1-apiUpgrade tomcat-el-2.2-apiUpgrade tomcat6-javadocUpgrade tomcat6-webappsUpgrade tomcat-docs-webappUpgrade tomcat-jsp-2.2-api | Mar 19, 2017 | Jan 5, 2017 |
| Suse | — | Upgrade tomcat6-javadocUpgrade tomcat6-jsp-2_1-apiUpgrade tomcat-servlet-4_0-apiUpgrade tomcat6-admin-webappsUpgrade tomcat6-webappsUpgrade tomcat-docs-webappUpgrade tomcat-admin-webappsUpgrade tomcat-el-2_2-apiUpgrade tomcat-servlet-3_1-apiUpgrade tomcat-javadocUpgrade tomcat6Upgrade tomcat-jsp-2_2-apiUpgrade tomcat-webappsUpgrade tomcat6-libUpgrade tomcat-el-3_0-apiUpgrade tomcat6-servlet-2_5-apiUpgrade tomcat-servlet-3_0-apiUpgrade tomcat-libUpgrade tomcat6-docs-webappUpgrade tomcat-jsp-2_3-apiUpgrade tomcat | May 10, 2017 | Jan 5, 2017 |
| Ubuntu | — | Upgrade libtomcat7-javaUpgrade tomcat7Upgrade libtomcat8-javaUpgrade libtomcat6-javaUpgrade tomcat6Upgrade tomcat8 | Jan 24, 2017 | Jan 5, 2017 |
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