CyberRota Analysis
AI-GeneratedThe RabbitMQ Java client library versions prior to 5.33.1 are vulnerable to a denial-of-service attack due to improper handling of content length in the ValueReader class, allowing a malicious AMQP peer to trigger excessive memory allocation. This can lead to an OutOfMemoryError, causing the Java Virtual Machine (JVM) to terminate. Organizations using affected versions of the RabbitMQ Java client should prioritize upgrading to version 5.33.1 to mitigate this high-severity vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.