CVE-2021-45939: Buffer Overflow
Published Dec 31, 2021
·Updated
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClientDecodePacket (called from MqttClientWaitType and MqttClientSubscribe).
Affected Software
1 affected component
wolfSSL wolfMQTT=1.9
Remediation
Event History
Dec 31, 2021
CVE Published
via MITRE·11:57 PM
Data Sourced
via MITRE·11:57 PM
Description
Jan 1, 2022
Data Sourced
via NVD·01:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-45939.
2
What is the severity of CVE-2021-45939?
The severity of CVE-2021-45939 is medium with a CVSS score of 5.5.
3
What software is affected by CVE-2021-45939?
The affected software is wolfSSL wolfMQTT 1.9.
4
What is the CWE ID for this vulnerability?
The CWE ID for this vulnerability is CWE-119 and CWE-787.
5
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).