The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.36.0, ValueReader.readShortstr decodes malformed UTF-8 bytes into replacement characters that can re-encode beyond the AMQP shortstr limit enforced by ValueWriter.writeShortstr. An attacker who can submit an RPC message with a malformed echoed property can cause reply publication in RpcServer.mainloop() or tutorial-style consumers to throw an unchecked exception before acknowledgement.
The broker requeues the message, allowing the same message to disable replacement consumers until the queue is purged. This issue is fixed in version 5.36.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Vmware Rabbitmq_Java_Client
cpe:2.3:a:vmware:rabbitmq_java_client:*:*:*:*:*:*:*:*
|
— |
5.36.0
|
References 4
https://github.com/rabbitmq/rabbitmq-java-client/commit/b8bd750fa8c90690e859b18…
security-advisories@github.com
https://github.com/rabbitmq/rabbitmq-java-client/pull/2065
security-advisories@github.com
https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.36.0
security-advisories@github.com
https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-7822-…
security-advisories@github.com