CVE-2021-45939: Buffer Overflow
First published: Fri Dec 31 2021(Updated: )
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_WaitType and MqttClient_Subscribe).
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 the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-45939.
What is the severity of CVE-2021-45939?
The severity of CVE-2021-45939 is medium with a CVSS score of 5.5.
What software is affected by CVE-2021-45939?
The affected software is wolfSSL wolfMQTT 1.9.
What is the CWE ID for this vulnerability?
The CWE ID for this vulnerability is CWE-119 and CWE-787.
Are there any references for this vulnerability?
Yes, you can find the references for this vulnerability at the following links: [link1](https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39103), [link2](https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1361.yaml), [link3](https://github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2).
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- vendor/wolfssl
- canonical/wolfssl wolfmqtt
- version/wolfssl wolfmqtt/1.9