RabbitMQ AMQP 1.0 parser: amplification memory-exhaustion DoS via zero-width array aggregation
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| rabbitmq | rabbitmq-server | affected |
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No data.
No data.
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| Rabbitmq | Rabbitmq-server |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.631% probability within 30 days)
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ssvc
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| First Time appeared |
Rabbitmq
Rabbitmq rabbitmq-server |
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| Vendors & Products |
Rabbitmq
Rabbitmq rabbitmq-server |
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threat_severity
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cvssV3_1
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| Description | RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.24, 4.1.15, 4.2.10, and 4.3.4, deps/amqp10_common/src/amqp10_binary_parser.erl materializes each element of AMQP 1.0 arrays whose shared constructor has zero width, while limiting only the number of elements in each array and not the aggregate arrays in a frame. After completing SASL authentication, a low-privilege client can send an ordinary frame containing many individually permitted arrays, causing a small frame to expand into a very large reader-process heap before later frame validation or authorization. Because deps/rabbit/src/rabbit_amqp_reader.erl clears the pre-authentication max_heap_size guard after login, repeated or concurrent frames can trigger the node-wide memory alarm, block publishers, or exhaust broker memory. This issue is fixed in versions 4.0.24, 4.1.15, 4.2.10, and 4.3.4. | |
| Title | RabbitMQ AMQP 1.0 parser: amplification memory-exhaustion DoS via zero-width array aggregation | |
| Weaknesses | CWE-400 CWE-770 |
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| Metrics |
cvssV4_0
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