| Package | Affected versions | Patched versions |
|---|---|---|
| mosquitto | ≥ 1.5, < 1.5.9≥ 1.6, < 1.6.6 | 1.5.91.6.6 |
| backports sle | = 15.0 |
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.
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