Vulnerability Details CVE-2021-45939
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_WaitType and MqttClient_Subscribe).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 42.4%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 4.3
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39103
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1361.yaml
- https://github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39103
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wolfmqtt/OSV-2021-1361.yaml
- https://github.com/wolfSSL/wolfMQTT/commit/84d4b53122e0fa0280c7872350b89d5777dabbb2