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Tomcat: WebSocket DoS with incomplete closing handshake

🗓️ 23 May 2024 06:23:23Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Tomcat WebSocket DoS from incomplete cleanup that leaves connections open and exhausts server resources.

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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.4noarchtomcat1:9.0.87-1.el9_4.1tomcat-1:9.0.87-1.el9_4.1.noarch.rpm
Red Hat Enterprise Linux9.4noarchtomcat-admin-webapps1:9.0.87-1.el9_4.1tomcat-admin-webapps-1:9.0.87-1.el9_4.1.noarch.rpm
Red Hat Enterprise Linux9.4noarchtomcat-docs-webapp1:9.0.87-1.el9_4.1tomcat-docs-webapp-1:9.0.87-1.el9_4.1.noarch.rpm
Red Hat Enterprise Linux9.4noarchtomcat-el-3.0-api1:9.0.87-1.el9_4.1tomcat-el-3.0-api-1:9.0.87-1.el9_4.1.noarch.rpm
Red Hat Enterprise Linux9.4noarchtomcat-jsp-2.3-api1:9.0.87-1.el9_4.1tomcat-jsp-2.3-api-1:9.0.87-1.el9_4.1.noarch.rpm
Red Hat Enterprise Linux9.4noarchtomcat-lib1:9.0.87-1.el9_4.1tomcat-lib-1:9.0.87-1.el9_4.1.noarch.rpm
Red Hat Enterprise Linux9.4noarchtomcat-servlet-4.0-api1:9.0.87-1.el9_4.1tomcat-servlet-4.0-api-1:9.0.87-1.el9_4.1.noarch.rpm
Red Hat Enterprise Linux9.4noarchtomcat-webapps1:9.0.87-1.el9_4.1tomcat-webapps-1:9.0.87-1.el9_4.1.noarch.rpm

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18 Mar 2026 02:39Current
7.2High risk
Vulners AI Score7.2
CVSS 3.16.3
EPSS0.02313
SSVC
CWE-459
tomcat vulnerabilitywebsocket attackincomplete cleanupresource exhaustiondenial of service
3