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Date: Mon, 19 Sep 2022 21:23:30 +0530
From: Manikumar <manikumar@...che.org>
To: oss-security@...ts.openwall.com
Cc: dev <dev@...ka.apache.org>
Subject: CVE-2022-34917: Unauthenticated clients may cause OutOfMemoryError on
Apache Kafka Brokers
Severity: High
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.
Credit:
Apache Kafka would like to thank Mickael Maison, Tom Bentley and
Daniel Collins for reporting this issue.
References:
https://kafka.apache.org/cve-list
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