CVE-2021-45932: Buffer Overflow
First published: Fri Dec 31 2021(Updated: )
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow (4 bytes) in MqttDecode_Publish (called from MqttClient_DecodePacket and MqttClient_HandlePacket).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| wolfSSL wolfMQTT | =1.9 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-45932?
CVE-2021-45932 is a vulnerability in wolfSSL wolfMQTT 1.9 that allows a heap-based buffer overflow, resulting in potential code execution or denial of service.
How severe is CVE-2021-45932?
CVE-2021-45932 has a severity score of 5.5, which is considered medium.
What is the affected software version of CVE-2021-45932?
The affected software version of CVE-2021-45932 is wolfSSL wolfMQTT 1.9.
How can CVE-2021-45932 be exploited?
CVE-2021-45932 can be exploited by sending a specially crafted MQTT packet that triggers the heap-based buffer overflow.
Is there a fix for CVE-2021-45932?
Yes, a fix for CVE-2021-45932 is available in the latest version of wolfSSL wolfMQTT. It is recommended to update to the latest version to mitigate the vulnerability.
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