Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux | — | Upgrade tomcat8 | Nov 5, 2021 | Sep 16, 2021 |
| Apache Tomcat | — | Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 9.0.44Upgrade Apache Tomcat to 10.0.2Upgrade Apache Tomcat to 8.5.64 | Sep 16, 2021 | Sep 16, 2021 |
| Debian | — | Upgrade tomcat9 | Sep 24, 2021 | Sep 16, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade tomcat-admin-webappsUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-libUpgrade tomcatUpgrade tomcat-el-3.0-apiUpgrade tomcat-servlet-4.0-api | Dec 28, 2021 | Sep 16, 2021 |
| Oracle Solaris | — | Upgrade web/java-servlet/tomcat-8/tomcat-admin to version 8.5.64-11.4.32.0.1.88.2 on Solaris 11.4Upgrade web/java-servlet/tomcat-8 to version 8.5.64-11.4.32.0.1.88.2 on Solaris 11.4Upgrade web/java-servlet/tomcat-8/tomcat-examples to version 8.5.64-11.4.32.0.1.88.2 on Solaris 11.4 | Oct 12, 2021 | Sep 16, 2021 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Sep 16, 2021 |
| Suse | — | Upgrade tomcat-embedUpgrade tomcat-jsp-2_3-apiUpgrade javapackages-toolsUpgrade tomcat-libUpgrade tomcat-webappsUpgrade tomcatUpgrade tomcat-admin-webappsUpgrade tomcat-el-3_0-apiUpgrade tomcat-docs-webappUpgrade tomcat-servlet-4_0-apiUpgrade tomcat-jsvcUpgrade tomcat-javadoc | Nov 4, 2021 | Sep 16, 2021 |
| Ubuntu | — | Upgrade tomcat8-docs (Ubuntu Pro)Upgrade libtomcat9-java (Ubuntu Pro)Upgrade tomcat9Upgrade tomcat9-commonUpgrade tomcat8 (Ubuntu Pro)Upgrade tomcat9-docs (Ubuntu Pro)Upgrade libtomcat9-javaUpgrade libtomcat9-embed-javaUpgrade libtomcat8-java (Ubuntu Pro)Upgrade tomcat9 (Ubuntu Pro) | Apr 1, 2022 | Sep 16, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Sep 16, 2021 |
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