| Package | Affected versions | Patched versions |
|---|---|---|
| rabbitmq server | ≥ 4.0.0, < 4.0.22≥ 4.1.0, < 4.1.14≥ 4.2.0, < 4.2.7≥ 4.3.0, < 4.3.1 | 4.0.224.1.144.2.74.3.1 |
RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.0.22 and 4.1.14 and 4.2.7 and 4.3.1, Atom exhaustion: toatom on global-parameter :name. resourceexists/2 (and the PUT/DELETE handlers) call rabbitdatacoercion:toatom/1 on the :name URL path segment. toatom/1 uses binarytoatom/2 (unsafe). The endpoint requires policymaker (not management, but below A user with the policymaker tag can crash the node by exhausting the atom table via repeated requests to /api/global-parameters/:name with unique :name Management plugin enabled policymaker tag ~1M HTTP. This issue is fixed in versions 4.0.22 and 4.1.14 and 4.2.7 and 4.3.1.
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