Pivotal RabbitMQ, versions 3.7.x prior to 3.7.21 and 3.8.x prior to 3.8.1, and RabbitMQ for Pivotal Platform, 1.16.x versions prior to 1.16.7 and 1.17.x versions prior to 1.17.4, contain a web management plugin that is vulnerable to a denial of service attack. The X-Reason HTTP Header can be leveraged to insert a malicious Erlang format string that will expand and consume the heap, resulting in the server crashing.
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Rabbitmq | Pivotal_software | 1.16.0 (including) | 1.16.7 (excluding) |
| Rabbitmq | Pivotal_software | 1.17.0 (including) | 1.17.4 (excluding) |
| Rabbitmq | Pivotal_software | 3.7.0 (including) | 3.7.21 (excluding) |
| Rabbitmq | Vmware | 3.8.0 (including) | 3.8.1 (excluding) |
| Red Hat OpenStack Platform 15.0 (Stein) | RedHat | rabbitmq-server-0:3.7.22-1.el8ost | * |
| Rabbitmq-server | Ubuntu | bionic | * |
| Rabbitmq-server | Ubuntu | disco | * |
| Rabbitmq-server | Ubuntu | eoan | * |
| Rabbitmq-server | Ubuntu | esm-infra/xenial | * |
| Rabbitmq-server | Ubuntu | trusty | * |
| Rabbitmq-server | Ubuntu | xenial | * |
When an attacker can modify an externally-controlled format string, this can lead to buffer overflows, denial of service, or data representation problems. It should be noted that in some circumstances, such as internationalization, the set of format strings is externally controlled by design. If the source of these format strings is trusted (e.g. only contained in library files that are only modifiable by the system administrator), then the external control might not itself pose a vulnerability.