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 cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| wolfSSL wolfMQTT | =1.9 | |
| =1.9 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
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.
- collector/nvd-index
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/references
- agent/severity
- agent/weakness
- agent/first-publish-date
- agent/description
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/last-modified-date
- agent/author
- agent/softwarecombine
- agent/tags
- agent/event
- vendor/wolfssl
- canonical/wolfssl wolfmqtt
- version/wolfssl wolfmqtt/1.9