Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.
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{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "9.0.58-1ubuntu0.1+esm4", "binary_name": "libtomcat9-embed-java" }, { "binary_version": "9.0.58-1ubuntu0.1+esm4", "binary_name": "libtomcat9-java" }, { "binary_version": "9.0.58-1ubuntu0.1+esm4", "binary_name": "tomcat9" }, { "binary_version": "9.0.58-1ubuntu0.1+esm4", "binary_name": "tomcat9-admin" }, { "binary_version": "9.0.58-1ubuntu0.1+esm4", "binary_name": "tomcat9-common" }, { "binary_version": "9.0.58-1ubuntu0.1+esm4", "binary_name": "tomcat9-docs" }, { "binary_version": "9.0.58-1ubuntu0.1+esm4", "binary_name": "tomcat9-examples" }, { "binary_version": "9.0.58-1ubuntu0.1+esm4", "binary_name": "tomcat9-user" } ] }