Unauthenticated clients may cause OutOfMemoryError on Apache Kafka Brokers
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.8.2, 3.0.2, 3.1.2, 3.2.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Apache Software Foundation Apache Kafka
Apache Kafka 2.8.0 2.8.0, Apache Kafka 2.8.1 2.8.1, Apache Kafka 3.0.0 3.0.0, Apache Kafka 3.0.1 3.0.1, Apache Kafka 3.1.0 3.1.0, Apache Kafka 3.1.1 3.1.1, Apache Kafka 3.2.0 3.2.0, Apache Kafka 3.2.1 3.2.1
- org.apache.kafka:kafkaMaven
From 2.8.0 · fixed in 2.8.2
- org.apache.kafka:kafkaMaven
From 3.0.0 · fixed in 3.0.2
- org.apache.kafka:kafkaMaven
From 3.1.0 · fixed in 3.1.2
- org.apache.kafka:kafkaMaven
From 3.2.0 · fixed in 3.2.3