Description
A security vulnerability has been identified in Apache Kafka. It affects all releases since 2.8.0. The vulnerability allows malicious unauthenticated clients to allocate large amounts of memory on brokers. This can lead to brokers hitting OutOfMemoryException and causing denial of service. Example scenarios: - Kafka cluster without authentication: Any clients able to establish a network connection to a broker can trigger the issue. - Kafka cluster with SASL authentication: Any clients able to establish a network connection to a broker, without the need for valid SASL credentials, can trigger the issue. - Kafka cluster with TLS authentication: Only clients able to successfully authenticate via TLS can trigger the issue. We advise the users to upgrade the Kafka installations to one of the 3.2.3, 3.1.2, 3.0.2, 2.8.2 versions.
Remediation
References
https://kafka.apache.org/cve-list
Related Vulnerabilities
CVE-2019-1003055 Vulnerability in maven package org.jvnet.hudson.plugins:ftppublisher
CVE-2011-4605 Vulnerability in maven package org.jboss.naming:jnpserver
CVE-2017-1000089 Vulnerability in maven package org.jenkins-ci.plugins:pipeline-build-step
CVE-2017-15703 Vulnerability in maven package org.apache.nifi:nifi-web-api
CVE-2020-5411 Vulnerability in maven package org.springframework.batch:spring-batch-core