Описание
RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, get_chunk_selector/1 calls binary_to_atom on the raw client-supplied <<"chunk_selector">> property from post-auth subscribe and resolve_offset_spec frames, with no whitelist and no existing guard. An authenticated stream client with read access to any stream can crash the broker node. Preconditions include rabbitmq_stream plugin enabled Authenticated stream-protocol user with read access to at least one stream. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1.
A flaw was found in RabbitMQ. An authenticated stream client with read access to any stream can exploit a vulnerability in the get_chunk_selector/1 function. This function processes a client-supplied chunk_selector property without proper validation, leading to an atom table exhaustion. Successful exploitation can cause the RabbitMQ broker node to crash, resulting in a Denial of Service (DoS).
Отчет
Red Hat rates this flaw MODERATE in products that ship affected RabbitMQ builds. With the stream plugin enabled, an authenticated client with read access to a stream can supply a crafted chunk selector, exhaust the broker’s atom table, and crash the node.
Меры по смягчению последствий
Disable the stream plugin if unused, and restrict stream access to trusted clients.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Hardened Images | rabbitmq-server4.2 | Will not fix | ||
| Red Hat OpenStack Platform 13 (Queens) | rabbitmq-server | Not affected | ||
| Red Hat OpenStack Platform 16.2 | rabbitmq-server | Not affected | ||
| Red Hat OpenStack Platform 17.1 | rabbitmq-server | Not affected | ||
| Red Hat OpenStack Platform 18.0 | rabbitmq-server | Fix deferred | ||
| Red Hat Hardened Images | rabbitmq-server4-3-main-4.3.6-1.hum1 | Fixed | RHSA-2026:67552 | 15.09.2026 |
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Ссылки на источники
Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, get_chunk_selector/1 calls binary_to_atom on the raw client-supplied <<"chunk_selector">> property from post-auth subscribe and resolve_offset_spec frames, with no whitelist and no existing guard. An authenticated stream client with read access to any stream can crash the broker node. Preconditions include rabbitmq_stream plugin enabled Authenticated stream-protocol user with read access to at least one stream. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1.
RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, get_chunk_selector/1 calls binary_to_atom on the raw client-supplied <<"chunk_selector">> property from post-auth subscribe and resolve_offset_spec frames, with no whitelist and no existing guard. An authenticated stream client with read access to any stream can crash the broker node. Preconditions include rabbitmq_stream plugin enabled Authenticated stream-protocol user with read access to at least one stream. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1.
RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.1 ...
EPSS
6.5 Medium
CVSS3